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The San Francisco Calamity - Chapters 21-24
CHAPTER XXI.
THE FAMOUS VESUVIUS AND THE DESTRUCTION OF POMPEII
The famous volcano of southern Italy named Vesuvius, which is now so
constantly in eruption, was described by the ancients as a cone- shaped
mountain with a flat top, on which was a deep circular valley filled with
vines and grass, and surrounded by high precipices. A large population
lived on the sides of the mountain, which was covered with beautiful
woods, and there were fine flourishing cities at its foot. So little was
the terrible nature of the valley on the top understood, that in A. D. 72,
Spartacus, a rebellious Roman gladiator, encamped there with some
thousands of fighting men, and the Roman soldiers were let down the
precipices in order to surprise and capture them.
There had been earthquakes around the mountain, and one of the cities had
been nearly destroyed; but no one was prepared for what occurred seven
years after the defeat of Spartacus. Suddenly, in the year 79 A. D., a
terrific rush of smoke, steam, and fire belched from the mountain's
summit; one side of the valley in which Spartacus had encamped was blown
off, and its rocks, with vast quantities of ashes, burning stones, and
sand, were ejected far into the sky. They then spread out like a vast
pall, and fell far and wide. For eight days and nights this went on, and
the enormous quantity of steam sent up, together with the deluge of rain
that fell, produced torrents on the mountain-side, which, carrying onward
the fallen ashes, overwhelmed everything in their way. Sulphurous vapors
filled the air and violent tremblings of the earth were constant.
A city six miles off was speedily rendered uninhabitable, and was
destroyed by the falling stones; but two others--Herculaneum and Pompeii--
which already had suffered from the down-pour of ashes, were gradually
filled with a flood of water, sand, and ashes, which came down the side of
the volcano, and covering them entirely.
BURIED CITIES EXCAVATED.
The difference in ease of excavation is due to the following circumstance.
Herculaneum being several miles nearer the crater, was buried in a far
more consistent substance, seemingly composed of volcanic ashes cemented
by mud; Pompeii, on the contrary, was buried only in ashes and loose
stones. The casts of statues found in Herculaneum show the plastic
character of the material that fell there, which time has hardened to rock-
like consistency.
These statues represented Hercules and Cleopatra, and the theatre proved
to be that of the long-lost city of Herculaneum. The site of Pompeii was
not discovered until forty years afterward, but work there proved far
easier than at Herculaneum, and more progress was made in bringing it back
to the light of day.
The less solid covering of Pompeii has greatly facilitated the work of
excavation, and a great part of the city has been laid bare. Many of its
public buildings and private residences are now visible, and some whole
streets have been cleared, while a multitude of interesting relics have
been found. Among those are casts of many of the inhabitants, obtained by
pouring liquid plaster into the ash moulds that remained of them. We see
them to- day in the attitude and with the expression of agony and horror
with which death met them more than eighteen centuries ago.
In succeeding eruptions much lava was poured out; and in A. D. 472, ashes
were cast over a great part of Europe, so that much fear was caused at
Constantinople. The buried cities were more and more covered up, and it
was not until about A. D. 1700 that, as above stated, the city of
Herculaneum was discovered, the peasants of the vicinity being in the
habit of extracting marble from its ruins. They had also, in the course of
years, found many statues. In consequence, an excavation was ordered by
Charles III, the earliest result being the discovery of the theatre, with
the statues above named. The work of excavation, however, has not
progressed far in this city, on account of its extreme difficulty, though
various excellent specimens of art-work have been discovered, including
the finest examples of mural painting extant from antiquity. The library
was also discovered, 1803 papyri being found. Though these had been
charred to cinder, and were very difficult to unroll and decipher, over
300 of them have been read.
PLINY'S CELEBRATED DESCRIPTION
Pliny the Younger, to whom we are indebted for the only contemporary
account of the great eruption under consideration, was at the time of its
occurrence resident with his mother at Misenum, where the Roman fleet lay,
under the command of his uncle, the great author of the "Historia
Naturalis". His account, contained in two letters to Tacitus (lib. vi. 16,
20), is not so much a narrative of the eruption, as a record of his
uncle's singular death, yet it is of great interest as yielding the
impressions of an observer. The translation which follows is adopted from
the very free version of Melmoth, except in one or two places, where it
differs much from the ordinary text. The letters are given entire, though
some parts are rather specimens of style than good examples of
description.
"Your request that I should send an account of my uncle's death, in order
to transmit a more exact relation of it to posterity, deserves my
acknowledgments; for if this accident shall be celebrated by your pen, the
glory of it, I am assured, will be rendered forever illustrious. And,
notwithstanding he perished by a misfortune which, as it involved at the
same time a most beautiful country in ruins, and destroyed so many
populous cities, seems to promise him an everlasting remembrance;
notwithstanding he has himself composed many and lasting works; yet I am
persuaded the mention of him in your immortal works will greatly
contribute to eternize his name. Happy I esteem those to be, whom
Providence has distinguished with the abilities either of doing such
actions as are worthy of being related, or of relating them in a manner
worthy of being read; but doubly happy are they who are blessed with both
these talents; in the number of which my uncle, as his own writings and
your history will prove, may justly be ranked. It is with extreme
willingness, therefore, that I execute your commands; and should, indeed,
have claimed the task if you had not enjoined it.
"He was at that time with the fleet under his command at Misenum. On the
24th of August, about one in the afternoon, my mother desired him to
observe a cloud which appeared of a very unusual size and shape. He had
just returned from taking the benefit of the sun, and, after bathing
himself in cold water, and taking a slight repast, had retired to his
study. He immediately arose, and went out upon an eminence, from whence he
might more distinctly view this very uncommon appearance. It was not at
that distance discernible from what mountain the cloud issued, but it was
found afterward to ascend from Mount Vesuvius. I cannot give a more exact
description of its figure than by comparing it to that of a pine tree, for
it shot up to a great height in the form of a trunk, which extended itself
at the top into a sort of branches; occasioned, I imagine, either by a
sudden gust of air that impelled it, the force of which decreased as it
advanced upwards, or the cloud itself being pressed back again by its own
weight, and expanding in this manner: it appeared sometimes bright, and
sometimes dark and spotted, as it was more or less impregnated with earth
and cinders.
"This extraordinary phenomenon excited my uncle's philosophical curiosity
to take a nearer view of it. He ordered a light vessel to be got ready,
and gave me the liberty, if I thought proper, to attend him. I rather
chose to continue my studies, for, as it happened, he had given me an
employment of that kind. As he was passing out of the house he received
dispatches: the marines at Retina, terrified at the imminent peril (for
the place lay beneath the mountain, and there was no retreat but by
ships), entreated his aid in this extremity. He accordingly changed his
first design, and what he began with a philosophical he pursued with an
heroical turn of mind.
THE VOYAGE TO STABIAE
"He ordered the galleys to put to sea, and went himself on board with an
intention of assisting not only Retina but many other places, for the
population is thick on that beautiful coast. When hastening to the place
from whence others fled with the utmost terror, he steered a direct course
to the point of danger, and with so much calmness and presence of mind, as
to be able to make and dictate his observations upon the motion and figure
of that dreadful scene. He was now so nigh the mountain that the cinders,
which grew thicker and hotter the nearer he approached, fell into the
ships, together with pumice-stones, and black pieces of burning rock; they
were in danger of not only being left aground by the sudden retreat of the
sea, but also from the vast fragments which rolled down from the mountain,
and obstructed all the shore.
"Here he stopped to consider whether he should return back again; to which
the pilot advised him. 'Fortune,' said he, 'favors the brave; carry me to
Pomponianus.' Pomponianus was then at Stabiae, separated by a gulf, which
the sea, after several insensible windings, forms upon the shore. He
(Pomponianus) had already sent his baggage on board; for though he was not
at that time in actual danger, yet being within view of it, and indeed
extremely near, if it should in the least increase, he was determined to
put to sea as soon as the wind should change. It was favorable, however,
for carrying my uncle to Pomponianus, whom he found in the greatest
consternation. He embraced him with tenderness, encouraging and exhorting
him to keep up his spirits; and the more to dissipate his fears he
ordered, with an air of unconcern, the baths to be got ready; when, after
having bathed, he sat down to supper with great cheerfulness, or at least
(what is equally heroic) with all the appearance of it.
"In the meantime, the eruption from Mount Vesuvius flamed out in several
places with much violence, which the darkness of the night contributed to
render still more visible and dreadful. But my uncle, in order to soothe
the apprehensions of his friend, assured him it was only the burning of
the villages, which the country people had abandoned to the flames; after
this he retired to rest, and it was most certain he was so little
discomposed as to fall into a deep sleep; for, being pretty fat, and
breathing hard, those who attended without actually heard him snore. The
court which led to his apartment being now almost filled with stones and
ashes, if he had continued there any longer it would have been impossible
for him to have made his way out; it was thought proper, therefore, to
awaken him. He got up and went to Pomponianus and the rest of his company,
who were not unconcerned enough to think of going to bed. They consulted
together whether it would be most prudent to trust to the houses, which
now shook from side to side with frequent and violent concussions; or to
fly to the open fields, where the calcined stone and cinders, though light
indeed, yet fell in large showers and threatened destruction. In this
distress they resolved for the fields as the less dangerous situation of
the two--a resolution which, while the rest of the company were hurried
into it by their fears, my uncle embraced upon cool and deliberate
consideration.
DEATH OF PLINY THE ELDER
"They went out, then, having pillows tied upon their heads with napkins;
and this was their whole defence against the storm of stones that fell
around them. It was now day everywhere else, but there a deeper darkness
prevailed than in the most obscure night; which, however, was in some
degree dissipated by torches and other lights of various kinds. They
thought proper to go down further upon the shore, to observe if they might
safely put out to sea; but they found that the waves still ran extremely
high and boisterous. There my uncle, having drunk a draught or two of cold
water, threw himself down upon a cloth which was spread for him, when
immediately the flames, and a strong smell of sulphur which was the
forerunner of them, dispersed the rest of the company, and obliged him to
rise. He raised himself up with the assistance of two of his servants, and
instantly fell down dead, suffocated, as I conjecture, by some gross and
noxious vapor, having always had weak lungs, and being frequently subject
to a difficulty of breathing.
"As soon as it was light again, which was not till the third day after
this melancholy accident, his body was found entire, and without any marks
of violence upon it, exactly in the same posture as that in which he fell,
and looking more like a man asleep than dead. During all this time my
mother and I were at Misenum. But this has no connection with your
history, as your inquiry went no farther than concerning my uncle's death;
with that, therefore, I will put an end to my letter. Suffer me only to
add, that I have faithfully related to you what I was either an eye-
witness of myself, or received immediately after the accident happened,
and before there was any time to vary the truth. You will choose out of
this narrative such circumstances as shall be most suitable to your
purpose; for there is a great difference between what is proper for a
letter and a history: between writing to a friend and writing to the
public. Farewell."
In this account, which was drawn up some years after the event, from the
recollections of a student eighteen years old, we recognize the continual
earthquakes; the agitated sea with its uplifted bed; the flames and vapors
of an ordinary eruption, probably attended by lava as well as ashes. But
it seems likely that the author's memory, or rather the information
communicated to him regarding the closing scene of Pliny's life, was
defective. Flames and sulphurous vapors could hardly be actually present
at Stabiae, ten miles from the centre of the eruption.
That lava flowed at all from Vesuvius on this occasion has been usually
denied; chiefly because at Pompeii and Herculaneum the causes of
destruction were different--ashes overwhelmed the former, mud concreted
over the latter. We observe, indeed, phenomena on the shore near Torre del
Greco which seem to require the belief that currents of lava had been
solidified there at some period before the construction of certain walls
and floors, and other works of Roman date. In the Oxford Museum, among the
specimens of lava to which the dates are assigned, is one referred to A.
D. 79, but there is no mode of proving it to have belonged to the eruption
of that date.
PLINY'S SECOND LETTER
A second letter from Pliny to Tacitus (Epist. 20) was required to satisfy
the curiosity of that historian; especially as regards the events which
happened under the eyes of his friend. Here it is according to Melmoth:
"The letter which, in compliance with your request, I wrote to you
concerning the death of my uncle, has raised, it seems, your curiosity to
know what terrors and danger attended me while I continued at Misenum: for
there, I think, the account in my former letter broke off.
'Though my shocked soul recoils, my tongue shall tell.'
"My uncle having left us, I pursued the studies which prevented my going
with him till it was time to bathe. After which I went to supper, and from
thence to bed, where my sleep was greatly broken and disturbed. There had
been, for many days before, some shocks of an earthquake, which the less
surprised us as they are extremely frequent in Campania; but they were so
particularly violent that night, that they not only shook everything about
us, but seemed, indeed, to threaten total destruction. My mother flew to
my chamber, where she found me rising in order to awaken her. We went out
into a small court belonging to the house, which separated the sea from
the buildings. As I was at that time but eighteen years of age, I know not
whether I should call my behavior, in this dangerous juncture, courage or
rashness; but I took up Livy, and amused myself with turning over that
author, and even making extracts from him, as if all about me had been in
full security. While we were in this posture, a friend of my uncle's, who
was just come from Spain to pay him a visit, joined us; and observing me
sitting with my mother with a book in my hand, greatly condemned her
calmness at the same time that he reproved me for my careless security.
Nevertheless, I still went on with my author.
"Though it was now morning, the light was exceedingly faint and languid;
the buildings all around us tottered; and, though we stood upon open
ground, yet as the place was narrow and confined, there was no remaining
there without certain and great danger: we therefore resolved to quit the
town. The people followed us in the utmost consternation, and, as to a
mind distracted with terror every suggestion seems more prudent than its
own, pressed in great crowds about us in our way out.
"Being got to a convenient distance from the houses, we stood still, in
the midst of a most dangerous and dreadful scene. The chariots which we
had ordered to be drawn out were so agitated backwards and forwards,
though upon the most level ground, that we could not keep them steady,
even by supporting them with large stones. The sea seemed to roll back
upon itself, and to be driven from its banks by the convulsive motion of
the earth; it is certain at least that the shore was considerably
enlarged, and many sea animals were left upon it. On the other side a
black and dreadful cloud, bursting with an igneous serpentine vapor,
darted out a long train of fire, resembling flashes of lightning, but much
larger.
FEAR VERSUS COMPOSURE
"Upon this the Spanish friend whom I have mentioned, addressed himself to
my mother and me with great warmth and earnestness; 'If your brother and
your uncle,' said he, 'is safe, he certainly wishes you to be so too; but
if he has perished, it was his desire, no doubt, that you might both
survive him: why therefore do you delay your escape a moment?' We could
never think of our own safety, we said, while we were uncertain of his.
Hereupon our friend left us, and withdrew with the utmost precipitation.
Soon afterward, the cloud seemed to descend, and cover the whole ocean; as
it certainly did the island of Capreae, and the promontory of Misenum. My
mother strongly conjured me to make my escape at any rate, which, as I was
young, I might easily do; as for herself, she said, her age and corpulency
rendered all attempts of that sort impossible. However, she would
willingly meet death, if she could have the satisfaction of seeing that
she was not the occasion of mine. But I absolutely refused to leave her,
and taking her by the hand, I led her on; she complied with great
reluctance, and not without many reproaches to herself for retarding my
flight.
"The ashes now began to fall upon us, though in no great quantity. I
turned my head and observed behind us a thick smoke, which came rolling
after us like a torrent. I proposed, while we yet had any light, to turn
out of the high road lest she should be pressed to death in the dark by
the crowd that followed us. We had scarce stepped out of the path when
darkness overspread us, not like that of a cloudy night, or when there is
no moon, but of a room when it is all shut up and all the lights are
extinct. Nothing then was to be heard but the shrieks of women, the
screams of children and the cries of men; some calling for their children,
others for their parents, others for their husbands, and only
distinguishing each other by their voices; one lamenting his own fate,
another that of his family; some wishing to die from the very fear of
dying; some lifting their hands to the gods; but the greater part
imagining that the last and eternal night was come, which was to destroy
the gods and the world together. Among them were some who augmented the
real terrors by imaginary ones, and made the frighted multitude believe
that Misenum was actually in flames.
"At length a glimmering light appeared, which we imagined to be rather the
forerunner of an approaching burst of flames, as in truth it was, than the
return of day. However, the fire fell at distance from us; then again we
were immersed in thick darkness, and a heavy shower of ashes rained upon
us, which we were obliged every now and then to shake off, otherwise we
should have been crushed and buried in the heap.
"I might boast that, during all this scene of horror, not a sigh or
expression of fear escaped me, had not my support been founded in that
miserable, though strong, consolation that all mankind were involved in
the same calamity, and that I imagined I was perishing with the world
itself! At last this dreadful darkness was dissipated by degrees, like a
cloud of smoke; the real day returned, and soon the sun appeared, though
very faintly, and as when an eclipse is coming on. Every object that
presented itself to our eyes (which were extremely weakened) seemed
changed, being covered over with white ashes, as with a deep snow. We
returned to Misenum, where we refreshed ourselves as well as we could, and
passed an anxious night between hope and fear, for the earthquake still
continued, while several greatly excited people ran up and down,
heightening their own and their friends' calamities by terrible
predictions. However, my mother and I, notwithstanding the danger we had
passed and that which still threatened us, had no thoughts of leaving the
place till we should receive some account from my uncle.
"And now you will read this narrative without any view of inserting it in
your history, of which it is by no means worthy; and, indeed, you must
impute it to your own request if it shall not even deserve the trouble of
a letter. Farewell!"
DION CASSIUS ON THE ERUPTION
The story told by Pliny is the only one upon which we can rely. Dion
Cassius, the historian, who wrote more than a century later, does not
hesitate to use his imagination, telling us that Pompeii was buried under
showers of ashes "while all the people were sitting in the theatre." This
statement has been effectively made use of by Bulwer, in his "Last Days of
Pompeii." In this he pictures for us a gladiatorial combat in the arena,
with thousands of deeply interested spectators occupying the surrounding
seats. The novelist works his story up to a thrilling climax in which the
volcano plays a leading part.
This is all very well as a vivid piece of fiction, but it does not accord
with fact, since Dion Cassius was undoubtedly incorrect in his statement.
We now know from the evidence furnished by the excavations that none of
the people were destroyed in the theatres, and, indeed, that there were
very few who did not escape from both cities. It is very likely that many
of them returned and dug down for the most valued treasures in their
buried habitations. Dion Cassius may have obtained the material for his
accounts from the traditions of the descendants of survivors, and if so he
shows how terrible must have been the impression made upon their minds. He
assures us that during the eruption a multitude of men of superhuman
nature appeared, sometimes on the mountain and sometimes in the environs,
that stones and smoke were thrown out, the sun was hidden, and then the
giants seemed to rise again, while the sounds of trumpets were heard.
LAKE AVERNUS
Not far from Vesuvius lay the famous Lake Avernus, whose name was long a
popular synonym for the infernal regions. The lake is harmless to-day, but
its reputation indicates that it was not always so. There is every reason
to believe that it hides the outlet of an extinct volcano, and that long
after the volcano ceased to be active it emitted gases as fatal to animal
life as those suffocating vapors which annihilated all the cattle on the
Island of Lancerote, in the Canaries, in the year 1730. Its name signifies
"birdless," indicating that its ascending vapors were fatal to all birds
that attempted to fly above its surface.
In the superstition of the Middle Ages Vesuvius assumed the character
which had before been given to Avernus, and was regarded as the mouth of
hell. Cardinal Damiano, in a letter to Pope Nicholas II., written about
the year 1060 tells the story of how a priest, who had left his mother ill
at Beneventum, went on his homeward way to Naples past the crater of
Vesuvius, and heard issuing therefrom the voice of his mother in great
agony. He afterward found that her death coincided exactly with the time
at which he had heard her voice.
A trip to the summit of Vesuvius is one of the principal attractions for
strangers who are visiting Naples. There is a fascination about that awful
slayer of cities which few can resist, and no less attractive is the city
of Pompeii, now largely laid bare after being buried for eighteen
centuries. We are indebted to Henry Haynie for the following interesting
description: "Once seen, it will never be forgotten. It is full of
suggestions. It kindles emotions that are worth the kindling, and brings
on dreams that are worth the dreaming. Of the three places overwhelmed,
Herculaneum, Pompeii and Stabiae, the last scarcely repays excavation in
one sense, and the first in another; but to watch the diggers at Pompeii
is fascinating, even when there is no reasonable expectation of a find.
Herculaneum was buried with lava, or rather with tufa, and it is so very
hard that the expense of uncovering of only a small part of that city has
been very great.
HOW POMPEII IMPRESSES ITS VISITORS
"Pompeii was smothered in ashes, however, and most of it is uncovered now.
But while there is much that is fascinating, and all of it is instructive,
there is nothing grand or awe-inspiring in the ruins of Pompeii. No
visitor stands breathless as in the great hall of Karnak or in the once
dreadful Coliseum at Rome, or dreams with sensuous delight as before the
Jasmine Court at Agra.
"The weirdness of the scene possesses us as a haunted chamber might. We
have before us the narrow lanes, paved with tufa, in which Roman wagon
wheels have worn deep ruts. We cross streets on stepping-stones which
sandaled feet ages ago polished. We see the wine shops with empty jars,
counters stained with liquor, stone mills where the wheat was ground, and
the very ovens in which bread was baked more than eighteen centuries ago.
'Welcome' is offered us at one silent, broken doorway; at another we are
warned to 'Beware of the dog!' The painted figures,--some of them so
artistic and rich in colors that pictures of them are disbelieved,-- the
mosaic pavements, the empty fountains, the altars and household gods, the
marble pillars and the small gardens are there just as the owners left
them. Some of the walls are scribbled over by the small boys of Pompeii in
strange characters which mock modern erudition. In places we read the
advertisements of gladiatorial shows, never to come off, the names of
candidates for legislative office who were never to sit. There is nothing
like this elsewhere.
"The value of Pompeii to those classic students who would understand, not
the speech only, but the life and the every-day habits, of the ancient
world, is too high for reckoning. Its inestimable evidence may be seen in
the fact that any high-school boy can draw the plan of a Roman house,
while ripest scholars hesitate on the very threshold of a Greek dwelling.
This is because no Hellenic Pompeii has yet been discovered, but thanks to
the silent city close to the beautiful Bay of Naples, the Latin house is
known from ostium to porticus, from the front door to the back garden
wall.
STREETS AND HOUSES OF POMPEII
"The streets of Pompeii must have had a charm unapproached by those of any
city now in existence. The stores, indeed, were wretched little dens. Two
or three of them commonly occupied the front of a house on either side of
the entrance, the ostium; but when the door lay open, as was usually the
case, a passerby could look into the atrium, prettily decorated and hung
with rich stuffs. The sunshine entered through an aperture in the roof,
and shone on the waters of the impluvium, the mosaic floor, the altar of
the household gods and the flowers around the fountain.
"As the life of the Pompeiians was all outdoors, their pretty homes stood
open always. There was indeed a curtain betwixt the atrium and the
peristyle, but it was drawn only when the master gave a banquet. Thus a
wayfarer in the street could see, beyond the hall described and its busy
servants, the white columns of the peristyle, with creepers trained about
them, flowers all around, and jets of water playing through pipes which
are still in place. In many cases the garden itself could be observed
between the pillars of the further gallery, and rich paintings on the wall
beyond that.
"But how far removed those little palaces of Pompeii were from our notion
of well-being is scarcely to be understood by one who has not seen them.
It is a question strange in all points of view where the family slept in
the houses, nearly all of which had no second story. In the most graceful
villas the three to five sleeping chambers round the atrium and four round
the peristyle were rather ornamental cupboards than aught else. One did
not differ from another, and if these were devoted to the household the
slaves, male and female, must have slept on the floor outside. The master,
his family and his guest used these small, dark rooms, which were
apparently without such common luxuries as we expect in the humblest home.
All their furniture could hardly have been more than a bed and a
footstool; but it should be remembered that the public bath was a daily
amusement. The kitchen of each villa certainly was not furnished with such
ingenuity, expense or thought as the stories of Roman gormandising would
have led us to expect. In the house of the Aedile--so called from the fact
that 'Pansam Aed.' is inscribed in red characters by the doorway--the cook
seems to have been employed in frying eggs at the moment when increasing
danger put him to flight. His range, four partitions of brick, was very
small; a knife, a strainer, a pan lay by the fire just as they fell from
the slave's hand."
VALUE OF THE DISCOVERY OF POMPEII
This description strongly presents to us the principal value of the
discovery of Pompeii. Interesting as are the numerous works of art found
in its habitations, and important as is their bearing upon some branches
of the art of the ancient world, this cannot compare in interest with the
flood of light which is here thrown on ancient life in all its details,
enabling us to picture to ourselves the manners and habits of life of a
cultivated and flourishing population at the beginning of the Christian
era, to an extent which no amount of study of ancient history could yield.
Looking upon the work of the volcano as essentially destructive, as we
naturally do, we have here a valuable example of its power as a
preservative agent; and it is certainly singular that it is to a volcano
we owe much of what we know concerning the cities, dwellings and domestic
life of the people of the Roman Empire.
It would be very fortunate for students of antiquity if similar disasters
had happened to cities in other ancient civilized lands, however
unfortunate it might have been to their inhabitants. But doubtless we are
better off without knowledge gained from ruins thus produced.
CHAPTER XXII.
ERUPTIONS OF VESUVIUS, ETNA AND STROMBOLI
Mount Vesuvius is of especial interest as being the only active volcano on
the continent of Europe--all others of that region being on the islands of
the Mediterranean--and for the famous ancient eruption described in the
last chapter. Before this it had borne the reputation of being extinct,
but since then it has frequently shown that its fires have not burned out,
and has on several occasions given a vigorous display of its powers.
During the fifteen hundred years succeeding the destructive event
described eruptions were of occasional occurrence, though of no great
magnitude. But throughout the long intervals when Vesuvius was at rest it
was noted that Etna and Ischia were more or less disturbed.
THE BIRTH OF MONTE NUOVO
In 1538 a startling evidence was given that there was no decline of energy
in the volcanic system of Southern Italy. This was the sudden birth of the
mountain still known as Monte Nuovo, or New Mountain, which was thrown up
in the Campania near Avernus, on the spot formerly occupied by the Lucrine
Lake.
For about two years prior to this event the district had been disturbed by
earthquakes, which on September 27 and 28, 1538, became almost continuous.
The low shore was slightly elevated, so that the sea retreated, leaving
bare a strip about two hundred feet in width. The surface cracked, steam
escaped, and at last, early on the morning of the 29th, a greater rent was
made, from which were vomited furiously "smoke, fire, stones and mud
composed of ashes, making at the time of its opening a noise like the
loudest thunder."
The ejected material in less than twelve hours built the hill which has
lasted substantially in the same form to our day. It is a noteworthy fact
that since the formation of Monte Nuovo there has been no volcanic
disturbance in any part of the Neapolitan district except in Vesuvius,
which for five centuries previous had remained largely at rest.
LAVA FROM VESUVIUS
The first recognised appearance of lava in the eruptions of Vesuvius was
in the violent eruption of 1036. This was succeeded at intervals by five
other outbreaks, none of them of great energy. After 1500 the crater
became completely quiet, the whole mountain in time being grown over with
luxuriant vegetation, while by the next century the interior of the crater
became green with shrubbery, indicating that no injurious gases were
escaping.
This was sleep, not death. In 1631 the awakening came in an eruption of
terrible violence. Almost in a moment the green mantle of woodland and
shrubbery was torn away and death and destruction left where peace and
safety had seemed assured.
Seven streams of lava poured from the crater and swept rapidly down the
mountain side, leaving ruin along their paths. Resina, Granasello and
Torre del Greco, three villages that had grown up during the period of
quiescence, were more or less overwhelmed by the molten lava. Great
torrents of hot water also poured out, adding to the work of desolation.
It was estimated that eighteen thousand of the inhabitants were killed.
What made the horror all the greater was a frightful error of judgment,
similar to that of the Governor of Martinique at St. Pierre. The Governor
of Torre del Greco had refused to be warned in time, and prevented the
people from making their escape until it was too late. Not until the lava
had actually reached the walls was the order for departure given. Before
the order could be acted upon the molten streams burst through the walls
into the crowded streets, and overwhelmed the vast majority of the
inhabitants.
In this violent paroxysm the whole top of the mountain is said to have
been swept away, the new crater which took the place of the old one being
greatly lowered. From that date Vesuvius has never been at rest for any
long interval, and eruptions of some degree of violence have been rarely
more than a few years apart. Of its various later manifestations of energy
we select for description that of 1767, of which an interesting account by
a careful observer is extant.
GREAT ERUPTION OF 1767
From the 10th of December, 1766, to March, 1767, Vesuvius was quiet; then
it began to throw up stones from time to time. In April the throws were
more frequent, and at night the red glare grew stronger on the cloudy
columns which hung over the crater. These repeated throws of cinders,
ashes and pumice-stones so much increased the small cone of eruption which
had been left in the centre of the flat crateral space that its top became
visible at a distance.
On the 7th of August there issued a small stream of lava from a breach in
the side of a small cone; the lava gradually filled the space between the
cone and the crateral edge; on the 12th of September it overflowed the
crater, and ran down the mountain. Stones were ejected which took ten
seconds in their fall, from which it may be computed that the height which
the stones reached was 1,600 feet. Padre Torre, a great observer of
Vesuvius, says they went up above a thousand feet. The lava ceased on the
18th of October, but at 8 A. M. on the 19th it rushed out at a different
place, after volleys of stones had been thrown to an immense height, and
the huge traditional pine-tree of smoke reappeared. On this occasion that
vast phantom extended its menacing shadow over Capri, at a distance of
twenty-eight miles from Vesuvius.
The lava at first came out of a mouth about one hundred yards below the
crater, on the side toward Monte Somma. While occupied in viewing this
current, the observer heard a violent noise within the mountain; saw it
split open at the distance of a quarter of a mile, and saw from the new
mouth a mountain of liquid fire shoot up many feet, and then, like a
torrent, roll on toward him. The earth shook; stones fell thick around
him; dense clouds of ashes darkened the air; loud thunders came from the
mountain top, and he took to precipitate flight. The Padre's account is
too lively and instructive for his own words to be omitted.
PADRE TORRE'S NARRATIVE
"I was making my observations upon the lava, which had already, from the
spot where it first broke out, reached the valley, when, on a sudden,
about noon, I heard a violent noise within the mountain, and at a spot
about a quarter of a mile off the place where I stood the mountain split;
and with much noise, from this new mouth, a fountain of liquid fire shot
up many feet high, and then like a torrent rolled on directly towards us.
The earth shook at the same time that a volley of stones fell thick upon
us; in an instant clouds of black smoke and ashes caused almost a total
darkness; the explosions from the top of the mountain were much louder
than any thunder I ever heard, and the smell of the sulphur was very
offensive. My guide, alarmed, took to his heels; and I must confess that I
was not at my ease. I followed close, and we ran near three miles without
stopping; as the earth continued to shake under our feet, I was
apprehensive of the opening of a fresh mouth which might have cut off our
retreat.
"I also feared that the violent explosions would detach some of the rocks
off the mountain of Somma, under which we were obliged to pass; besides,
the pumice-stones, falling upon us like hail, were of such a size as to
cause a disagreeable sensation in the part upon which they fell. After
having taken breath, as the earth trembled greatly I thought it most
prudent to leave the mountain and return to my villa, where I found my
family in great alarm at the continual and violent explosions of the
volcano, which shook our house to its very foundation, the doors and
windows swinging upon their hinges.
"About two of the clock in the afternoon (19th) another lava stream forced
its way out of the same place from whence came the lava of last year, so
that the conflagration was soon as great on this side of the mountain as
on the other which I had just left. I observed on my way to Naples, which
was in less than two hours after I had left the mountain, that the lava
had actually covered three miles of the very road through which we had
retreated. This river of lava in the Atrio del Cavallo was sixty or
seventy feet deep, and in some places nearly two miles broad. Besides the
explosions, which were frequent, there was a continued subterranean and
violent rumbling noise, which lasted five hours in the night,--supposed to
arise from contact of the lava with rain-water lodged in cavities within.
The whole neighborhood was shaken violently; Portici and Naples were in
the extremity of alarm; the churches were filled; the streets were
thronged with processions of saints, and various ceremonies were performed
to quell the fury of the mountain.
"In the night of the 20th, the occasion being critical, the prisoners in
the public jail attempted to escape, and the mob set fire to the gates of
the residence of the Cardinal Archbishop because he refused to bring out
the relics of St. Januarius. The 21st was a quieter day, but the whole
violence of the eruption returned on the 22d, at 10 A. M., with the same
thundering noise, but more violent and alarming. Ashes fell in abundance
in the streets of Naples, covering the housetops and balconies an inch
deep. Ships at sea, twenty leagues from Naples, were covered with them.
"In the midst of these horrors, the mob, growing tumultuous and impatient,
obliged the Cardinal to bring out the head of St. Januarius, at the
extremity of Naples, toward Vesuvius; and it is well attested here that
the eruption ceased the moment the saint came in sight of the mountain. It
is true the noise ceased about that time after having lasted five hours,
as it had done the preceding days.
"On the 23d the lava still ran, but on the 24th it ceased; but smoke
continued. On the 25th there rose a vast column of black smoke, giving out
much forked lightning with thunder, in a sky quite clear except for the
smoke of the volcano. On the 26th smoke continued, but on the 27th the
eruption came to an end."
This eruption was also described by Sir William Hamilton, who continued to
keep a close watch on the movements of the volcano for many years. The
next outbreak of especial violence took place in 1779, when what seemed to
the eye a column of fire ascended two miles high, while cinder fragments
fell far and wide, destroying the hopes of harvest throughout a wide
district. They fell in abundance thirty miles distant, and the dust of the
explosion was carried a hundred miles away.
In 1793 the crater became active again, and in 1794 after a period of
short tranquillity or comparative inaction, the mountain again became
agitated, and one of the most formidable eruptions known in the history of
Vesuvius began. It was in some respects unlike many others, being somewhat
peculiar as to the place of its outburst, the temperature of the lava, and
the course of the current. Breislak, an Italian geologist, observed the
characteristic phenomena with the eye of science, and his account supplies
many interesting facts.
BREISLAK ON THE ERUPTION OF 1794
Breislak remarked certain changes in the character of the earth's motions
during this six hours' eruption, which led him to some particular
conjecture of the cause. At the beginning the trembling was continual, and
accompanied by a hollow noise, similar to that occasioned by a river
falling into a subterranean cavern. The lava, at the time of its being
disgorged, from the impetuous and uninterrupted manner in which it was
ejected, causing it to strike violently against the walls of the vent,
occasioned a continual oscillation of the mountain. Toward the middle of
the night this vibratory motion ceased, and was succeeded by distant
shocks. The fluid mass, diminished in quantity, now pressed less violently
against the walls of the aperture, and no longer issued in a continual and
gushing stream, but only at intervals, when the interior fermentation
elevated the boiling matter above the mouth. About 4 A. M. the shocks
began to be less numerous, and the intervals between them rendered their
force and duration more perceptible.
During this tremendous eruption at the base of the Vesuvian cone, and the
fearful earthquakes which accompanied it, the summit was tranquil. The sky
was serene, the stars were brilliant, and only over Vesuvius hung a thick,
dark smoke-cloud, lighted up into an auroral arch by the glare of a stream
of fire more than two miles long, and more than a quarter of a mile broad.
The sea was calm, and reflected the red glare; while from the source of
the lava came continual jets of uprushing incandescent stones. Nearer to
view, Torre del Greco in flames, and clouds of black smoke, with falling
houses, presented a dark and tragical foreground, heightened by the
subterranean thunder of the mountain, and the groans and lamentations of
fifteen thousand ruined men, women and children.
The heavy clouds of ashes which were thrown out on this occasion gathered
in the early morning into a mighty shadow over Naples and the
neighborhood; the sun rose pale and obscure, and a long, dim twilight
reigned afterward.
Such were the phenomena on the western side of Vesuvius. They were matched
by others on the eastern aspect, not visible at Naples, except by
reflection of their light in the atmosphere. The lava on this side flowed
eastward, along a route often traversed by lava, by the broken crest of
the Cognolo and the valley of Sorienta. The extreme length to which this
current reached was not less than an Italian mile. The cubic content was
estimated to be half that already assigned to the western currents. Taken
together they amounted to 20,744,445 cubic metres, or 2,804,440 cubic
fathoms; the constitution of the lava being the same in each, both
springing from one deep-seated reservoir of fluid rock.
The eruption of lava ceased on the 16th, and then followed heavy
discharges of ashes, violent shocks of earthquakes, thunder and lightning
in the columns of vapors and ashes, and finally heavy rains, lasting till
the 3d of July. The barometer during all the eruption was steady.
Breislak made an approximate calculation of the quantity of ashes which
fell on Vesuvius during this great eruption, and states the result as
equal to what would cover a circular area 6 kilometres (about 3 1/2
English miles) in radius, and 39 centimetres (about 15 inches) in depth.
STRANGE EFFECTS
Among the notable things which attended this eruption, it is recorded that
in Torre del Greco metallic and other substances exposed to the current
were variously affected. Silver was melted, glass became porcelain, iron
swelled to four times its volume and lost its texture. Brass was
decomposed, and its constituent copper crystallized in cubic and
octahedral forms aggregated in beautiful branches. Zinc was sometimes
turned to blende. During the eruption, the lip of the crater toward Bosco
Tre Case on the south east, fell in, or was thrown off, and the height of
that part was reduced 426 feet.
On the 17th, the sea was found in a boiling state 100 yards off the new
promontory made by the lava of Torre del Greco, and no boat could remain
near it on account of the melting of the pitch in her bottom. For nearly a
month after the eruption vast quantities of fine white ashes, mixed with
volumes of steam, were thrown out from the crater; the clouds thus
generated were condensed into heavy rain, and large tracts of the Vesuvian
slopes were deluged with volcanic mud. It filled ravines, such as Fosso
Grande, and concreted and hardened there into pumiceous tufa--a very
instructive phenomenon.
Immense injury was done to the rich territory of Somma, Ottajano and Bosco
by heavy rains, which swept along cinders, broke up the road and bridges,
and overturned trees and houses for the space of fifteen days.
There were few years during the nineteenth century in which Vesuvius did
not show symptoms of its internal fires, and at intervals it manifested
much activity, though not equaling the terrible eruptions of its past
history. The severest eruptions in that century were those of 1871 and
1876. In the first a sudden emission of lava killed twenty spectators at
the mouth of the crater, and only spent its fury after San Sebastian and
Massa had been well nigh annihilated. Fragments of rock were thrown up to
the height of 4,000 feet, and the explosions were so violent that the
whole countryside fled panic stricken to Naples. The activity of the
volcano, accompanied by distinct shocks of earthquake, lasted for a week.
In 1876, for three weeks together, lava streamed down the side of
Vesuvius, sweeping away the village of Cercolo and running nearly to the
sea at Ponte Maddaloni. There were then formed ten small craters within
the greater one. But these were united by a later eruption in 1888, and
pressure from beneath formed a vast cone where they had been.
HARDIHOOD OF THE PEOPLE
It may seem strange that so dangerous a neighborhood should be inhabited.
But so it is. Though Pompeii, Herculaneum and Stabiae lie buried beneath
the mud and ashes belched out of the mouth of Vesuvius, the villages of
Portici and Revina, Torre del Greco and Torre del Annunziata have taken
their place, and a large population, cheerful and prosperous, flourishes
around the disturbed mountain and over the district of which it is the
somewhat untrustworthy safety-valve.
It is thus that man, in his eagerness to cultivate all available parts of
the earth, dares the most frightful perils and ventures into the most
threatening situations, seeking to snatch the means of life from the very
jaws of death. The danger is soon forgotten, the need of cultivation of
the ground is ever pressing, and no threats of peril seem capable of
restraining the activity of man for many years. Though the proposition of
abandoning the Island of Martinique has been seriously considered, the
chances are that, before many years have passed, a cheerful and busy
population will be at work again on the flanks of Mont Pelee.
MOUNT ETNA
On the eastern coast of the Island of Sicily, and not far from the sea,
rises in solitary grandeur Mount Etna, the largest and highest of European
volcanoes. Its height above the level of the sea is a little over 10,870
feet, considerably above the limit of perpetual snow. It accordingly
presents the striking phenomenon of volcanic vapors ascending from a snow-
clad summit. The base of the mountain is eighty-seven miles in
circumference, and nearly circular; but there is a wide additional extent
all around overspread by its lava. The lower portions of the mountain are
exceedingly fertile, and richly adorned with corn-fields, vineyards, olive-
groves and orchards. Above this region are extensive forests, chiefly of
oak, chestnut, and pine, with here and there clumps of cork-trees and
beech. In this forest region are grassy glades, which afford rich pasture
to numerous flocks. Above the forest lies a volcanic desert, covered with
black lava and slag. Out of this region, which is comparatively flat rises
the principal cone, about 1,100 feet in height, having on its summit the
crater, whence sulphurous vapors are continually evolved.
The great height of Etna has exerted a remarkable influence on its general
conformation: for the volcanic forces have rarely been of sufficient
energy to throw the lava quite up to the crater at the summit. The
consequence has been, that numerous subsidiary craters and cones have been
formed all around the flanks of the mountain, so that it has become rather
a cluster of volcanoes than a single volcanic cone.
The eruptions of this mountain have been numerous, records of them
extending back to several centuries before the Christian era, while
unrecorded ones doubtless took place much further back. After the
beginning of the Christian era, and more especially after the breaking
forth of Vesuvius in 79 A. D., Etna enjoyed longer intervals of repose.
Its eruptions since that time have nevertheless been numerous--more
especially during the intervals when Vesuvius was inactive--there being a
sort of alternation between the periods of great activity of the two
mountains; although there are not a few instances of their having been
both in action at the same time.
SIMILARITY IN ETNA'S ERUPTIONS
There is a great similarity in the character of the eruptions of Etna.
Earthquakes presage the outburst, loud explosions follow, rifts and bocche
del fuoco open in the sides of the mountain; smoke, sand, ashes and
scoriae are discharged, the action localizes itself in one or more
craters, cinders are thrown up and accumulate around the crater and cone,
ultimately lava rises and frequently breaks down one side of the cone
where the resistance is least; then the eruption is at an end.
Smyth says: "The symptoms which precede an eruption are generally
irregular clouds of smoke, ferilli or volcanic lightnings, hollow
intonations and local earthquakes that often alarm the surrounding country
as far as Messina, and have given the whole province the name of Val
Demone, as being the abode of infernal spirits. These agitations increase
until the vast cauldron becomes surcharged with the fused minerals, when,
if the convulsion is not sufficiently powerful to force them from the
great crater (which, from its great altitude and the weight of the candent
matter, requires an uncommon effort), they explode through that part of
the side which offers the least resistance with a grand and terrific
effect, throwing red-hot stones and flakes of fire to an incredible
height, and spreading ignited cinders and ashes in every direction."
After the eruption of ashes, lava frequently follows, sometimes rising to
the top of the cone of cinders, at others disrupting it on the least
resisting side. When the lava has reached the base of the cone it begins
to flow down the mountain, and, being then in a very fluid state, it moves
with great velocity. As it cools, the sides and surface begin to harden,
its velocity decreases, and after several days it moves only a few yards
an hour. The internal portions, however, part slowly with their heat, and
months after the eruption clouds of steam arise from the black and
externally cold lava-beds after rain; which, having penetrated through the
cracks, has found its way to the heated mass within.
THE ERUPTION OF 1669
The most memorable of the eruptions of Etna was that which elevated the
double cone of Monte Rossi and destroyed a large part of the city of
Catania. It happened in the year 1669, and was preceded by an earthquake,
which overthrew the town of Nicolosi, situated ten miles inland from
Catania, and about twenty miles from the top of Etna. The eruption began
with the sudden opening of an enormous fissure, extending from a little
way above Nicolosi to within about a mile of the top of the principal
cone, its length being twelve miles, its average breadth six feet, its
depth unknown.
We have a more detailed account of this eruption than of any preceding
one, as it was observed by men of science from various countries. The
account from which we select is that of Alfonso Borelli, Professor of
Mathematics in Catania.
From the fissure above mentioned, he says, there came a bright light. Six
mouths opened in a line with it and emitted vast columns of smoke,
accompanied by loud bellowings which could be heard forty miles off.
Towards the close of the day a crater opened about a mile below the
others, which ejected red-hot stones to a considerable distance, and
afterward sand and ashes which covered the country for a distance of sixty
miles. The new crater soon vomited forth a torrent of lava which presented
a front of two miles; it encircled Monpilieri, and afterward flowed
towards Belpasso, a town of 8,000 inhabitants, which was speedily
destroyed. Seven mouths of fire opened around the new crater, and in three
days united with it, forming one large crater 800 feet in diameter. All
this time the torrent of lava continued to descend, it destroying the town
of Mascalucia on the 23d of March. On the same day the crater cast up
great quantities of sand, ashes and scoriae, and formed above itself the
great double-coned hill now called Monte Rossi, from the red color of the
ashes of which it is mainly composed.
VILLAGES AND CITIES BURIED
On the 25th very violent earthquakes occurred, and the cone above the
great central crater was shaken down into the crater for the fifth time
since the first century A. D. The original current of lava divided into
three streams, one of which destroyed San Pietro, the second Camporotondo,
and the third the lands about Mascalucia and afterward the village of
Misterbianco. Fourteen villages were altogether destroyed, and the lava
flowed toward Catania. At Albanelli, two miles from the city, it
undermined a hill covered with cornfields and carried it forward a
considerable distance. A vineyard was also seen to be floating on its
fiery surface. When the lava reached the walls of Catania, it accumulated
without progression until it rose to the top of the wall, 60 feet in
height, and it then fell over in a fiery cascade and overwhelmed a part of
the city. Another portion of the same stream threw down 120 feet of the
wall and flowed into the city.
On the 23d of April the lava reached the sea, which it entered as a stream
600 yards broad and 40 feet deep. The stream had moved at the rate of
thirteen miles in twenty days, but as it cooled it moved less quickly, and
during the last twenty-three days of its course, it advanced only two
miles. On reaching the sea the water, of course, began to boil violently,
and clouds of steam arose, carrying with them particles of scoriae.
Towards the end of April the stream on the west side of Catania, which had
appeared to be consolidated, again burst forth, and flowed into the garden
of the Benedictine Monastery of San Niccola, and then branched off into
the city. Attempts were made to build walls to arrest its progress.
An attempt of another kind was made by a gentleman of Catania, named
Pappalardo, who took fifty men with him, having previously provided them
with skins for protection from the intense heat and with crowbars to
effect an opening in the lava. They pierced the solid outer crust of
solidified lava, and a rivulet of the molten interior immediately gushed
out and flowed in the direction of Paterno, whereupon 500 men of that
town, alarmed for its safety, took up arms and caused Pappalardo and his
men to desist. The lava did not altogether stop for four months, and two
years after it had ceased to flow it was found to be red hot beneath the
surface. Even eight years after the eruption quantities of steam escaped
from the lava after a shower of rain.
THE STONES EJECTED
The stones which were ejected from the crater during this eruption were
often of considerable magnitude, and Borelli calculated that the diameter
of one which he saw was 50 feet; it was thrown to a distance of a mile,
and as it fell it penetrated the earth to a depth of 23 feet. The volume
of lava emitted during the eruption amounted to many millions of cubic
feet. Ferara considers that the length of the stream was at least fifteen
miles, while its average width was between two and three miles, so that it
covered at least forty square miles of surface.
Among the towns overflowed by this great eruption was Mompilieri. Thirty-
five years afterward, in 1704, an excavation was made on the site of the
principal church of this place, and at the depth of thirty-five feet the
workmen came upon the gate, which was adorned with three statues. From
under an arch which had been formed by the lava, one of these statues,
with a bell and some coins, were extracted in good preservation. This fact
is remarkable; for in a subsequent eruption, which happened in 1766, a
hill about fifty feet in height, being surrounded on either side by two
streams of lava, was in a quarter of an hour swept along by the current.
The latter event may be explained by supposing that the hill in question
was cavernous in its structure, and that the lava, penetrating into the
cavities, forced asunder their walls, and so detached the superincumbent
mass from its supports.
It is not by its streams of fire alone that Etna ravages the valleys and
plains at its base. It sometimes also deluges them with great floods of
water. On the 2d of March, 1755, two streams of lava, issuing from the
highest crater, were at once precipitated on an enormous mass of very deep
snow, which then clothed the summit. These fiery currents ran through the
snow to a distance of three miles, melting it as they flowed. The
consequence was, that a tremendous torrent of water rushed down the sides
of the mountain, carrying with it vast quantities of sand, volcanic
cinders and blocks of lava, with which it overspread the flanks of the
mountain and the plains beneath, which it devastated in its course.
The volume of water was estimated at 16,000,000 cubic feet, it forming a
channel two miles broad and in some places thirty-four feet deep, and
flowing at the rate of two-thirds of a mile in a minute. All the winter's
snow on the mountain could not have yielded such a flood, and Lyell
considered that it melted older layers of ice which had been preserved
under a covering of volcanic dust.
ETNA IN 1819
Another great eruption took place in 1819, which presented some
peculiarities. Near the point whence the highest stream of lava issued in
1811, there were opened three large mouths, which, with loud explosions,
threw up hot cinders and sand, illuminated by a strong glare from beneath.
Shortly afterwards there was opened, a little lower down, another mouth,
from which a similar eruption took place; and still farther down there
soon appeared a fifth, whence there flowed a torrent of lava which rapidly
spread itself over the Val del Bove. During the first forty-eight hours it
flowed nearly four miles, when it received a great accession. The three
original mouths became united into one large crater, from which, as well
as from the other two mouths below, there poured forth a vastly augmented
torrent of lava, which rushed with great impetuosity down the same valley.
During its progress over this gentle slope, it acquired the usual crust of
hardened slag. It directed its course towards that point at which Val del
Bove opens into the narrow ravine beneath it-- there being between the two
a deep and almost perpendicular precipice. Arrived at this point, the lava-
torrent leaped over the precipice in a vast cascade, and with a thundering
noise, arising chiefly from the crashing and breaking up of the solid
crust, which was in a great measure pounded to atoms by the fall; it
throwing up such vast clouds of dust as to awaken an alarm that a fresh
eruption had begun at this place, which is within the wooded region.
A very violent eruption, which lasted more than nine months, commenced on
the 21st of August, 1852. It was first witnessed by a party of English
tourists, who were ascending the mountain from Nicolosi in order to see
the sunrise from the summit. As they approached the Casa Inglesi the
crater commenced to give forth ashes and flames of fire. In a narrow
defile they were met by a violent hurricane, which overthrew both the
mules and their riders, and urged them toward the precipices of the Val
del Bove. They sheltered themselves beneath some masses of lava, when
suddenly an earthquake shook the mountain, and their mules in terror fled
away. As day approached they returned on foot to Nicolosi, fortunately
without having sustained injury. In the course of the night many bocche
del fuoco (small lava vents) opened in that part of the Val del Bove
called the Bazo di Trifoglietto, a great fissure opened at the base of the
Giannicola Grande, and a crater was thrown up from which for seventeen
days showers of sand and scoriae were ejected.
EFFECT OF THE ERUPTION
During the next day a quantity of lava flowed down the Val del Bove,
branching off so that one stream advanced to the foot of Monte Finocchio,
and the other to Monte Calanna. Afterwards it flowed towards Zaffarana,
and devastated a large tract of wooded region. Four days later a second
crater was formed near the first, from which lava was emitted, together
with sand and scoriae, which caused cones to arise around the craters. The
lava moved but slowly, and towards the end of August it came to a stand,
only a quarter of a mile from Zaffarana.
On the second of September, Gemellaro ascended Monte Finocchio in the Val
del Bove in order to witness the outburst. He states that the hill was
violently agitated, like a ship at sea. The surface of the Val del Bove
appeared like a molten lake; scoriae were thrown up from the craters to a
great height, and loud explosions were heard at frequent intervals. The
eruption continued to increase in violence. On October 6 two new mouths
opened in the Val del Bove, emitting lava which flowed towards the valley
of Calanna, and fell over the Salto della Giumenta, a precipice nearly 200
feet deep. The noise which it produced was like that of a clash of
metallic masses. The eruption continued with abated violence during the
early months of 1853, and it did not finally cease till May 27. The entire
mass of lava ejected is estimated to have been equal to an area six miles
long by two miles broad, with an average depth of about twelve feet.
This eruption was one of the grandest of all the known eruptions of Etna.
During its outflow more than 2,000,000,000 cubic feet of molten lava was
spread out over a space of three square miles. There have been several
eruptions since its date, but none of marked prominence, though the
mountain is rarely quiescent for any lengthened period.
THE LIPARI VOLCANOES
South-eastward of Ischia, between Calabria and Sicily, the Lipari Islands
arrest attention for the volcanic phenomena they present. On one of these
is Mount Vulcano, or Volcano, from which all this class of mountains is
named. At present the best known of the Lipari volcanoes is Stromboli,
which consists of a single mountain, having a very obtuse conical form. It
has on one side of it several small craters, of which only one is at
present in a state of activity.
The total height of the mountain is about 2000 feet, and the principal
crater is situated at about two-thirds of the height. Stromboli is one of
the most active volcanoes in the world. It is mentioned as being in a
state of activity by several writers before the Christian era, and the
commencement of its operations extends into the past beyond the limits of
tradition. Since history began its action has never wholly ceased,
although it may have varied in intensity from time to time.
It has been observed that the violence of its eruptive force has a certain
dependence on the weather--being always most intense when the barometer is
lowest. From the position of the crater, it is possible to ascend the
mountain and look down upon it from above. Even when viewed in this
manner, it presents a very striking appearance. While there is an
uninterrupted continuance of small explosions, there is a frequent
succession of more violent eruptions, at intervals varying in length from
seven to fifteen minutes.
HOFFMAN AT STROMBOLI
Several eminent observers have approached quite close to the crater, and
examined it narrowly. One of these was M. Hoffman, who visited it in 1828.
This eminent geologist, while having his legs held by his companions,
stretched his head over the precipice, and, looking right down into the
mouth of one of the vents of the crater immediately under him, watched the
play of liquid lava within it. Its surface resembled molten silver, and
was constantly rising and falling at regular intervals. A bubble of white
vapor rose and escaped, with a decrepitating noise, at each ascent of the
lava-- tossing up red-hot fragments of scoria, which continued dancing up
and down with a sort of rhythmic play upon the surface. At intervals of
fifteen minutes or so, there was a pause in these movements. Then followed
a loud report, while the ground trembled, and there rose to the surface of
the lava an immense bubble of vapor. This, bursting with a crackling
noise, threw out to the height of about 1200 feet large quantities of red-
hot stones and scoriae, which, describing parabolic curves, fell in a
fiery, shower all around. After another brief repose, the more moderate
action was resumed as before.
Lipari, a neighboring volcano, was formerly more active than Stromboli,
though for centuries past it has been in a state of complete quiescence.
The Island of Volcano lies south of Lipari. Its crater was active before
the Christian era, and still emits sulphurous and other vapors. At present
its main office is to serve as a sulphur mine. Thus the peak which gives
title to all fire-breathing mountains has become a servant to man. So are
the mighty fallen!
CHAPTER XXIII.
SKAPTAR JOKULL AND HECLA, THE GREAT ICELANDIC VOLCANOES
The far-northern island of Iceland, on the verge of the frozen Arctic
realm, is one of the most volcanic countries in the world, whether we
regard the number of volcanoes concentrated in so small a space, or the
extraordinary violence of their eruptions. Of volcanic mountains there are
no less than twenty which have been active during historical times.
Skaptar in the north, and Hecla in the south, being much the best known.
In all, twenty-three eruptions are on record.
Iceland's volcanoes rival Mount Aetna in height and magnitude, their
action has been more continuous and intense, and the range of volcanic
products is far greater than in Sicily. The latter island, indeed, is not
one-tenth of volcanic origin, while the whole of Iceland is due to the
work of subterranean forces. It is entirely made up of volcanic rocks, and
has seemingly been built up during the ages from the depths of the seas.
It is reported, indeed, that a new island, the work of volcanic forces,
appeared opposite Mount Hecla in 1563; but this statement is open to
doubt.
VOLCANOES IN ICELAND
The eruptions of the volcanoes in Iceland have been amongst the most
terrible of those carefully recorded. The cold climate of the island and
the height of the mountains produce vast quantities of snow and ice, which
cover the volcanoes and fill up the cracks and valleys in their sides.
When, therefore, an eruption commences, the intense heat of the boiling
lava, and of the steam which rushes forth from the crater, makes the whole
mountain hot, and vast masses of ice, great fields of snow, and deluges of
water roll down the hill-sides into the plains. The lava pours from the
top and from cracks in the side of the mountain, or is ejected hundreds of
feet, to fall amongst the ice and snow; and the great masses of red-hot
stone cast forth, accompanied by cinders and fine ashes, splash into the
roaring torrent, which tears up rocks in its course and devastates the
surrounding country for miles.
DREADFUL FLOODS
An eruption of Kotlugja, in 1860, was accompanied by dreadful floods. It
began with a number of earthquakes, which shook the surrounding country.
Then a dark columnar cloud of vapor was seen to rise by day from the
mountain, and by night balls of fire (volcanic bombs) and red-hot cinders
to the height of 24,000 feet (nearly five miles), which were seen at a
distance of 180 miles. Deluges of water rushed from the heights, bearing
along whole fields of ice and rocky fragments of every size, some vomited
from the volcano, but in great part torn from the flanks of the mountain
itself and carried to the sea, there to add considerably to the coastline
after devastating the intervening country. The fountain of volcanic bombs
consisted of masses of lava, containing gases which exploded and produced
a loud sound, which was said to have been heard at a distance of 100
miles. The size of the bombs, and the height to which they must have
reached, were very great. But the most remarkable of the historical
eruptions in Iceland were those of Skaptar Jokull in 1783, and of Hecla in
1845. Of these an extended description is worthy of being given.
Of these two memorable eruptions, that of Skaptar Jokull began on the 11th
of June, 1783. It was preceded by a long series of earthquakes, which had
become exceedingly violent immediately before the eruption. On the 8th,
volcanic vapors were emitted from the summit of the mountain, and on the
11th immense torrents of lava began to be poured forth from numerous
mouths. These torrents united to form a large stream, which, flowing down
into the river Skapta, not only dried it up, but completely filled the
vast gorge through which the river had held its course. This gorge, 200
feet in breadth, and from 400 to 600 feet in depth, the lava filled so
entirely as to overflow to a considerable extent the fields on either
side. On issuing from this ravine, the lava flowed into a deep lake which
lay in the course of the river. Here it was arrested for a while; but it
ultimately filled the bed of the lake altogether--either drying up its
waters, or chasing them before it into the lower part of the river's
course. Still forced onward by the accumulation of molten lava from
behind, the stream resumed its advance, till it reached some ancient
volcanic rocks which were full of caverns. Into these it entered, and
where it could not eat its way by melting the old rock, it forced a
passage by shivering the solid mass and throwing its broken fragments into
the air to a height of 150 feet.
A TORRENT OF LAVA
On the 18th of June there opened above the first mouth a second of large
dimensions, whence poured another immense torrent of lava, which flowed
with great rapidity over the solidified surface of the first stream, and
ultimately combined with it to form a more formidable main current. When
this fresh stream reached the fiery lake, which had filled the lower
portion of the valley of the Skapta, a portion of it was forced up the
channel of that river towards the foot of the hill whence it takes its
rise. After pursuing its course for several days, the main body of this
stream reached the edge of a great waterfall called Stapafoss, which
plunged into a deep abyss. Displacing the water, the lava here leaped over
the precipice, and formed a great cataract of fire. After this, it filled
the channel of the river, though extending itself in breadth far beyond
it, and followed it until it reached the sea.
ENORMOUS QUANTITY OF LAVA
The 3rd of August brought fresh accessions to the flood of lava still
pouring from the mountain. There being no room in the channel, now filled
by the former lurid stream, which had pursued a northwesterly course, the
fresh lava was forced to take a new direction towards the southeast, where
it entered the bed of another river with a barbaric name. Here it pursued
a course similar to that which flowed through the channel of the Skapta,
filling up the deep gorges, and then spreading itself out into great fiery
lakes over the plains.
The eruptions of lava from the mountain continued, with some short
intervals, for two years, and so enormous was the quantity poured forth
during this period that, according to a careful estimate which has been
made, the whole together would form a mass equal to that of Mont Blanc. Of
the two streams, the greater was fifty, the less forty, miles in length.
The Skapta branch attained on the plains a breadth varying from twelve to
fifteen miles--that of the other was only about half as much. Each of the
currents had an average depth of 100 feet, but in the deep gorges it was
no less than 600 feet. Even as late as 1794 vapors continued to rise from
these great streams, and the water contained in the numerous fissures
formed in their crust was hot.
The devastation directly wrought by the lava currents themselves was not
the whole of the evils they brought upon unfortunate Iceland and its
inhabitants. Partly owing to the sudden melting of the snows and glaciers
of the mountain, partly owing to the stoppage of the river courses,
immense floods of water deluged the country in the neighborhood,
destroying many villages and a large amount of agricultural and other
property. Twenty villages were overwhelmed by the lava currents, while the
ashes thrown out during the eruption covered the whole island and the
surface of the sea for miles around its shores. On several occasions the
ashes were drifted by the winds over considerable parts of the European
continent, obscuring the sun and giving the sky a gray and gloomy aspect.
In certain respects they reproduced the phenomena of the explosion of
Mount Krakatoa, which, singularly, occurred just a century later, in 1883.
The strange red sunset phenomena of the latter were reproduced by this
Icelandic event of the eighteenth century.
Out of the 50,000 persons who then inhabited Iceland, 9,336 perished,
together with 11,460 head of cattle, 190,480 sheep and 28,000 horses. This
dreadful destruction of life was caused partly by the direct action of the
lava currents, partly by the noxious vapors they emitted, partly by the
floods of water, partly by the destruction of the herbage by the falling
ashes, and lastly in consequence of the desertion of the coasts by the
fish, which formed a large portion of the food of the people.
ERUPTION OF MOUNT HECLA
After this frightful eruption, no serious volcanic disturbance took place
in Iceland until 1845, when Mount Hecla again became disastrously active.
Mount Hecla has been the most frequent in its eruptions of any of the
Icelandic volcanoes. Previous to 1845 there had been twenty-two recorded
eruptions of this mountain, since the discovery of Iceland in the ninth
century; while from all the other volcanoes in the island there had been
only twenty during the same period. Hecla has more than once remained in
activity for six years at a time--a circumstance that has rendered it the
best known of the volcanoes of this region.
LATER OUTBREAKS
After enjoying a long rest of seventy-nine years, this volcano burst again
into violent activity in the beginning of September, 1845. The first
inkling of this eruption was conveyed to the British Islands by a fall of
volcanic ashes in the Orkneys, which occurred on the night of September
2nd during a violent storm. This palpable hint was soon confirmed by
direct intelligence from Copenhagen. On the 1st of September a severe
earthquake, followed the same night by fearful subterranean noises,
alarmed the inhabitants and gave warning of what was to come. About noon
the next day, with a dreadful crash, there opened in the sides of the
volcano two new mouths, whence two great streams of glowing lava poured
forth. They fortunately flowed down the northern and northwestern sides of
the mountain, where the low grounds are mere barren heaths, affording a
scanty pasture for a few sheep. These were driven before the fiery stream,
but several of them were burnt before they could escape. The whole
mountain was enveloped in clouds of volcanic ashes and vapors. The rivers
near the lava currents became so hot as to kill the fish, and to be
impassable even on horseback.
About a fortnight later there was a fresh eruption, of greater violence,
which lasted twenty-two hours, and was accompanied by detonations so loud
as to be heard over the whole island. Two new craters were formed, one on
the southern, the other on the eastern slope of the cone. The lava issuing
from these craters flowed to a distance of more than twenty-two miles. At
about two miles from its source the fiery stream was a mile wide, and from
40 to 50 feet deep. It destroyed a large extent of fine pasture and many
cattle. Nearly a month later, on the 15th of October, a fresh flood of
lava burst from the southern crater, and soon heaped up a mass at the foot
of the mountain from 40 to 60 feet in height, three great columns of
vapor, dust and ashes rising at the same time from the three new craters
of the volcano. The mountain continued in a state of greater or less
activity during most of the next year; and even as late as the month of
October, 1846, after a brief pause, it began again with renewed vehemence.
The volumes of dust, ashes and vapor, thrown up from the craters, and
brightly illuminated by the glowing lava beneath, assumed the appearance
of flames, and ascended to an immense height.
ELECTRIC PHENOMENA
Among the stones tossed out of the craters was one large mass of pumice
weighing nearly half a ton, which was carried to a distance of between
four and five miles. The rivers were flooded by the melting of ice and
snow which had accumulated on the mountain. The greatest mischief wrought
by these successive eruptions was the destruction of the pasturages, which
were for the most part covered with volcanic ashes. Even where left
exposed, the herbage acquired a poisonous taint which proved fatal to the
cattle, inducing among them a peculiar murrain. Fortunately, owing to the
nature of the district through which the lava passed, there was on this
occasion no loss of human life.
The Icelandic volcanoes are remarkable for the electric phenomena which
they produce in the atmosphere. Violent thunder-storms, with showers of
rain and hail, are frequent accompaniments of volcanic eruptions
everywhere; but owing to the coldness and dryness of the air into which
the vapors from the Icelandic volcanoes ascend, their condensation is so
sudden and violent that great quantities of electricity are developed.
Thunder-storms accompanied by the most vivid lightnings are the result.
Humboldt mentions in his "Cosmos" that, during an eruption of Kotlugja,
one of the southern Icelandic volcanoes, the lightning from the cloud of
volcanic vapor killed eleven horses and two men (Cosmos i. 223). Great
displays of the aurora borealis usually accompany the volcanic eruptions
of this island--doubtless resulting from the quantity of electricity
imparted to the higher atmosphere by the condensation of the ascending
vapors. On the 18th of August, 1783, while the great eruption of Skaptar
Jokull was in progress, an immense fire-ball passed over England and the
European continent as far as Rome. This ball which was estimated to have
had a diameter exceeding half a mile, is supposed to have been of
electrical origin, and due to the high state of electric tension in the
atmosphere over Iceland at that time.
CHAPTER XXIV.
VOLCANOES OF THE PHILIPPINES AND OTHER PACIFIC ISLANDS
We cannot do better than open this chapter with an account of the work of
volcanoes in the mountain-girdled East Indian island of Java. This large
and fertile tropical island has a large native population, and many
European settlers are employed in cultivating spices, coffee and woods.
The island is rather more than 600 miles long, and it is not 150 miles
broad in any part; and this narrow shape is produced by a chain of
volcanoes which runs along it. There is scarcely any other region in the
world where volcanoes are so numerous, even in the East, where the volcano
is a very common product of nature. Some of the volcanoes of Java are
constantly in eruption, while others are inactive.
One of their number, Galung Gung, was previous to 1822 covered from top to
bottom with a dense forest; around it were populous villages. The mountain
was high; there was a slight hollow on its top--a basin-like valley,
carpeted with the softest sward; brooks rippled down the hillside through
the forests, and, joining their silvery streams, flowed on through
beautiful valleys into the distant sea. In the month of July, 1822, there
were signs of an approaching disturbance; this tranquil peacefulness was
at an end; one of the rivers became muddy, and its waters grew hot.
In October, without any warning, a most terrific eruption occurred. A loud
explosion was heard; the earth shook, and immense columns of hot water,
boiling mud mixed with burning brimstone, ashes and stones, were hurled
upwards from the mountain top like a waterspout, and with such wonderful
force that large quantities fell at a distance of forty miles. Every
valley near the mountain became filled with burning torrents; the rivers,
swollen with hot water and mud, overflowed their banks, and swept away the
escaping villagers; and the bodies of cattle, wild beasts, and birds were
carried down the flooded stream.
ERUPTION OF GALUNG GUNG
A space of twenty-four miles between the mountain and a river forty miles
distant was covered to such a depth with blue mud, that people were buried
in their houses, and not a trace of the numerous villages and plantations
was visible. The boiling mud and cinders were cast forth with such
violence from the crater, that while many distant villages were utterly
destroyed and buried, others much nearer the volcano were scarcely
injured; and all this was done in five short hours.
Four days afterwards a second eruption occurred more violent than the
first, and hot water and mud were cast forth with masses of slag like the
rock called basalt some of which fell seven miles off. A violent
earthquake shook the whole district, and the top of the mountain fell in,
and so did one of its sides, leaving a gaping chasm. Hills appeared where
there had been level land before, and the rivers changed their courses,
drowning in one night 2,000 people. At some distance from the mountain a
river runs through a large town, and the first intimation the inhabitants
had of all this horrible destruction was the news that the bodies of men
and the carcases of stags, rhinoceroses, tigers, and other animals, were
rushing along to the sea. No less than 114 villages were destroyed, and
above 4,000 persons were killed by this terrible catastrophe.
Fifty years before this eruption, Mount Papandayang, one of the highest
burning mountains of Java, was constantly throwing out steam and smoke,
but as no harm was done, the natives continued to live on its sides.
Suddenly this enormous mountain fell in, and left a gap fifteen miles long
and six broad. Forty villages were destroyed, some being carried down and
others overwhelmed by mud and burning lava. No less than 2,957 people
perished, with vast numbers of cattle; moreover, most of the coffee
plantations in the neighboring districts were destroyed.
Even more terrible was the eruption of Mount Salek, another of the
volcanoes of Java. The burning of the mountain was seen 100 miles away,
while the thunders of its convulsions and the tremblings of the earth
reached the same distance. Seven hills, at whose base ran a river--crowded
with dead buffaloes, deer, apes, tigers, and crocodiles--slipped down and
became a level plain. River-courses were changed, forests were burnt up,
and the whole face of the country was completely altered.
Later volcanic eruptions in Java include that of 1843, when Mount Guntur
flung out sand and ashes estimated at the vast total of thirty million
tons, and those of 1849 and 1872 when Mount Merapi, a very active volcano,
covered a great extent of country with stones and ashes, and ruined the
coffee plantations of the neighboring districts.
We have said nothing concerning the most terrible explosion of all, that
of the volcanic island of Krakatoa, off the Javan coast. This event was so
phenomenal as to deserve a chapter of its own, for which we reserve it.
The United States, as one result of its recent acquisition of island
dominions, has added largely to its wealth in volcanic mountains. The
famous Hawaiian craters, far the greatest in the world, now belong to our
national estate, and the Philippine Islands contain various others, of
less importance, yet some of which have proved very destructive. A
description of those of the Island of Luzon, which are the most active in
the archipelago, is here sub-joined.
THE LUZON VOLCANOES.
Volcanoes have played an important part in the formation of the Philippine
Islands and have left traces of their former activity in all directions.
Most of them, however, have long been dead and silent, only a few of the
once numerous group being now active. Of these there are three of
importance in the southern region of Luzon--Taal, Bulusan and Mayon or
Albay.
The last named of these is the largest and most active of the existing
volcanoes. In form it is of marvellous grace and beauty, forming a perfect
cone, about fifty miles in circuit at base and rising to a height of 8,900
feet. It is one of the most prominent landmarks to navigators in the
island. From its crater streams upward a constant smoke, accompanied at
times by flame, while from its depths issue subterranean sounds, often
heard at a distance of many leagues. The whole surrounding country is
marked by evidences of old eruptions.
This mountain, in 1767, sent up a cone of flame of forty feet in diameter
at base, for ten days, and for two months a wide stream of lava poured
from its crater. A month later there gushed forth great floods of water,
which filled the rivers to overflow, doing widespread damage to the
neighboring plantations. But its greatest and most destructive eruption
took place in 1812, the year of the great eruption of the St. Vincent
volcano. On this fatal occasion several towns were destroyed and no less
than 12,000 people lost their lives. The debris flung forth from the
crater were so abundant that deposits deep enough to bury the tallest
trees were formed near the mountain. In 1867 another disastrous explosion
took place, and still another in 1888. A disaster different in kind and
cause occurred in 1876, when a terrible tropical storm burst upon the
mountain. The floods of rain swept from its sides the loose volcanic
material, and brought destruction to the neighboring country, more than
six thousand houses being ruined by the rushing flood.
BULUSAN AND TAAL
Bulusan, a volcano on the southern extremity of the island, resembles
Vesuvius in shape. For many years it remained dormant, but in 1852 smoke
began to issue from its crater. In some respects the most interesting of
these three volcanoes is that of Taal, which lies almost due south of
Manila and about forty-five miles distant, on a small island in the middle
of a large lake, known as Bombom or Bongbong. A remarkable feature of this
volcanic mountain is that it is probably the lowest in the world, its
height being only 850 feet above sea level. There are doubtful traditions
that Lake Bombom, a hundred square miles in extent, was formed by a
terrible eruption in 1700, by which a lofty mountain 8000 or 9000 feet
high, was destroyed. The vast deposits of porous tufa in the surrounding
country are certainly evidences of former great eruptions from Mount Taal.
The crater of this volcano is an immense, cup-shaped depression, a mile or
more in diameter and about 800 feet deep. When recently visited by
Professor Worcester, during his travels in these islands, he found it to
contain three boiling lakelets of strangely-colored water, one being of a
dirty brown hue, a second intensely yellow in tint, and the third of a
brilliant emerald green. The mountain still steams and fumes, as if too
actively at work below to be at rest above. In past times it has shown the
forces at play in its depths by breaking at times into frightful activity.
Of the various explosions on record, the three most violent were those of
1716, 1749, and 1754. In the last-named year the earth for miles round
quaked with the convulsive throes of the deeply disturbed mountain, and
vast quantities of volcanic dust were hurled high into the air, sufficient
to make it dark at midday for many leagues around. The roofs of distant
Manila were covered with volcanic dust and ashes. Molten lava also poured
from the crater and flowed into the lake, which boiled with the intense
heat, while great showers of stones and ashes fell into its waters.
VOLCANOES IN THE SOUTHERN ISLANDS
Extinct volcanoes are numerous in Luzon, and there are smoking cones in
the north, and also in the Babuyanes Islands still farther north.
Volcanoes also exist in several of the other islands. On Negros is the
active peak of Malaspina, and on Camiguin, an island about ninety miles to
the southeast, a new volcano broke out in 1876. The large island of
Mindanao has three volcanoes, of which Cottabato was in eruption in 1856
and is still active at intervals. Apo, the largest of the three, estimated
to be 10,312 feet high, has three summits, within which lies the great
crater, now extinct and filled with water.
In evidence of former volcanic activity are the abundant deposits of
sulphur on the island of Leyte, the hot springs in various localities, and
the earthquakes which occasionally bring death and destruction. Of the
many of these on record, the most destructive was in 1863, when 400 people
were killed and 2,000 injured, while many buildings were wrecked. Another
in 1880 wrought great destruction in Manila and elsewhere, though without
loss of life. An earthquake in Mindanao in 1675 opened a passage to the
sea, and a vast plain emerged. These convulsions of the earth affect the
form and elevation of buildings, which are rarely more than two stories
high and lightly built, while translucent sea-shells replace glass in
their windows.
While Java is the most prolific in volcanoes of the islands of the Malayan
Archipelago, other islands of the group possess active cones, including
Sumatra, Bali, Amboyna, Banda and others. In Sanguir, an island north of
Celebes, is a volcanic mountain from which there was a destructive
eruption in 1856. The country was devastated with lava, stones and
volcanic ashes, ruining a wide district and killing nearly 3,000 of the
inhabitants. Mount Madrian in one of the Spice Islands, was rent in twain
by a fierce eruption in 1646, and since then has remained two distinct
mountains. It became active again in 1862, after two centuries of repose,
and caused great loss of life and property. Sorea, a small island of the
same group, forming but a single volcanic mountain, had an eruption in
1693, the cone crumbling gradually till a vast crater was formed, filled
with liquid lava and occupying nearly half the island. This lake of fire
increased in size by the same process till in the end it took possession
of the island and forced all the inhabitants to flee to more hospitable
shores.
THE GREAT ERUPTION OF TOMBORO
But of the East Indian Islands Sumbawa, lying east of Java, contains the
most formidable volcano--one indeed scarcely without a rival in the world.
This is named Tomboro. Of its various eruptions the most furious on record
was that of 1815. This, as we are told by Sir Stamford Raffles, far
exceeded in force and duration any of the known outbreaks of Etna or
Vesuvius. The ground trembled and the echoes of its roar were heard
through an area of 1,000 miles around the volcano, and to a distance of
300 miles its effects were astounding.
In Java, 300 miles away, ashes filled the air so thickly that the solar
rays could not penetrate them, and fell to the depth of several inches.
The detonations were so similar to the reports of artillery as to be
mistaken for them. The Rajah of Sang'ir, who was an eye-witness of the
eruption, thus described it to Sir Stamford:
"About 7 P. M. on the 10th of April, three distinct columns of flame burst
forth near the top of the Tomboro mountain (all of them apparently within
the verge of the crater), and, after ascending separately to a very great
height, their tops united in the air in a troubled, confused manner. In
short time the whole mountain next Sang'ir appeared like a body of liquid
fire, extending itself in every direction. The fire and columns of flame
continued to rage with unabated fury, until the darkness caused by the
quantity of falling matter obscured them, at about 8 P. M. Stones at this
time fell very thick at Sang'ir--some of them as large as two fists, but
generally not larger than walnuts. Between 9 and 10 P. M. ashes began to
fall, and soon after a violent whirlwind ensued, which blew down nearly
every house in the village of Sang'ir--carrying the roofs and light parts
away with it. In the port of Sang'ir, adjoining Tomboro, its effects were
much more violent--tearing up by the roots the largest trees, and carrying
them into the air, together with men, horses, cattle, and whatever else
came within its influence. This will account for the immense number of
floating trees seen at sea. The sea rose nearly twelve feet higher than it
had ever been known to do before, and completely spoiled the only spots of
rice-land in Sang'ir--sweeping away houses and everything within its
reach. The whirlwind lasted about an hour. No explosions were heard till
the whirlwind had ceased, at about 11 P.M. From midnight till the evening
of the 11th, they continued without intermission. After that time their
violence moderated, and they were heard only at intervals; but the
explosions did not cease entirely until the 15th of July. Of all the
villages of Tomboro, Tempo, containing about forty inhabitants, is the
only one remaining. In Pekate no vestige of a house is left; twenty-six of
the people, who were at Sumbawa at the time, are the whole of the
population who have escaped. From the most particular inquiries I have
been able to make, there were certainly no fewer than 12,000 individuals
in Tomboro and Pekate at the time of the eruption, of whom only five or
six survive. The trees and herbage of every description, along the whole
of the north and west sides of the peninsula, have been completely
destroyed, with the exception of those on a high point of land, near the
spot where the village of Tomboro stood."
Tomboro village was not only invaded by the sea on this occasion, but its
site permanently subsided; so that there is now eighteen feet of water
where there was formerly dry land.
THE VOLCANOES OF JAPAN
The Japanese archipelago, as stated in an earlier chapter, is abundantly
supplied with volcanoes, a number of them being active. Of these the best
known to travelers is Asamayama, a mountain 8,500 feet high, of which
there are several recorded eruptions. The first of these was in 1650;
after which the volcano remained feebly active till 1783, when it broke
out in a very severe eruption. In 1870 there was another of some severity,
accompanied by violent shocks of earthquake felt at Yokohama. The crater
is very deep, with irregular rocky walls of a sulphurous character.
Far the most famous of all the Japanese mountains, however, is that named
Fuji-san, but commonly termed in English Fujiyama or Fusiyama. It is in
the vicinity of the capital, and is the most prominent object in the
landscape for many miles around. The apex is shaped somewhat like an eight-
petaled lotus flower, and offers to view from different directions from
three to five peaks.
Though now apparently extinct, it was formerly an active volcano, and is
credited in history with several very disastrous eruptions. The last of
these was in 1707, at which time the whole summit burst into flames. Rocks
were split and shattered by the heat, and stones fell to the depth of
several inches in Yeddo (now Tokyo), sixty miles away. At present there
are in its crater, which has a depth of 700 or 800 feet, neither
sulphurous exhalations nor steam. According to Japanese tradition this
great peak was upheaved in a single night from the bottom of the sea, more
than twenty-one hundred years ago.
Nothing can be more majestic than this volcano, extinct though it be,
rising in an immense cone from the plain to the height of over twelve
thousand feet, truncated at the top, and with its peak almost always snow-
covered. Its ascent is not difficult to an expert climber, and has
frequently been made. From its summit is unfolded a panorama beyond the
power of words to describe, and probably the most remarkable on the globe.
Mountains, valleys, lakes, forests and the villages of thirteen counties
may be seen. As we gaze upon its beautifully shaped and lofty mass,
visible even from Yokohama and a hundred miles at sea, one does not wonder
that it should be regarded as a holy mountain, and that it should form a
conspicuous object in every Japanese work of art. It is to the natives of
Japan as Mont Blanc is to Europeans, the "monarch of mountains."
In summer pilgrimages are made around the base of the summit elevation,
and there are on the upward path a number of Buddhist temples and shrines,
made of blocks of stone, for devotion, shelter and the storage of food for
pilgrims. Hakone Lake is three thousand feet above the sea, and probably
lies in the crater of an extinct volcano. Its waters are very deep; it is
several miles long and wide, and is surrounded by high hills which abound
in fine scenery, solfataras and mineral springs.
HOT SPRINGS NEAR HAKONE LAKE
At this place the mountain seems to be smouldering, as sulphur fumes and
steam issue at many points, and the ground is covered with a friable white
alkaline substance. In many a hollow the water bubbles with clouds of
vapor and sulphuretted hydrogen; here the soil is hot and evidently
underlaid by active fires. It is not safe to go very near, as the crust is
thin and crumbling. The water running down the hills has a refreshing
sound and a tempting clearness, but the thirsty tongue at once detects it
to be a very strong solution of alum. The whole aspect of the place is
infernal, and naturally suggests the name given its principal geyser, O-
gigoko (Big Hell).
Fujiyama is almost a perfect cone, with, as above said, a truncated top,
in which is the crater. It is, however, less steep than Mayon. Its upper
part is comparatively steep, even to thirty-five degrees, but below this
portion the inclination gradually lessens, till its elegant outlines are
lost in the plain from which it rises. The curves of the sides depend
partly on the nature, size and shape of the ejected material, the fine
uniform pieces remaining on comparatively steep slopes, while the larger
and rounder ones roll farther down, resting on the inclination that
afterward becomes curved from the subsidence of the central mass.
The most recent and one of the most destructive of volcanic eruptions
recorded in Japan was that of Bandaisan or Baldaisan. For ages this
mountain had been peaceful, and there was scarcely an indication of its
volcanic character or of the terrific forces which lay dormant deep within
its heart. On its flanks lay some small deposits of scoriae, indications
of far-past eruptions, and there were some hot springs at its base, while
steam arose from a fissure. Yet there was nothing to warn the people of
the vicinity that deadly peril lay under their feet.
BANDAISAN'S WORK OF TERROR
This sense of security was fatally dissipated on a day in July, 1888, when
the mountain suddenly broke into eruption and flung 1,600 million cubic
yards of its summit material so high into the air that many of the falling
fragments, in their fall, struck the ground with such velocity as to be
buried far out of sight. The steam and dust were driven to a height of 13,
000 feet, where they spread into a canopy of much greater elevation,
causing pitchy darkness beneath. There were from fifteen to twenty violent
explosions, and a great landslide devastated about thirty square miles and
buried many villages in the Nagase Valley.
Mr. Norman, a traveler who visited the spot shortly afterward, thus
describes the scene of ruin. After a journey through the forests which
clothed the slopes of the volcanic mountain and prevented any distant
view, the travelers at last found themselves "standing upon the ragged
edge of what was left of the mountain of Bandaisan, after two-thirds of
it, including, of course, the summit, had been literally blown away and
spread over the face of the country.
"The original cone of the mountain," he continues, "had been truncated at
an acute angle to its axis. From our very feet a precipitous mud slope
falls away for half a mile or more till it reaches the level. At our
right, still below us, rises a mud wall a mile long, also sloping down to
the level, and behind it is evidently the crater; but before us, for five
miles in a straight line, and on each side nearly as far, is a sea of
congealed mud, broken up into ripples and waves and great billows, and
bearing upon its bosom a thousand huge boulders, weighing hundreds of tons
apiece."
On reaching the crater he found it to resemble a gigantic cauldron, fully
a mile in width, and enclosed with precipitous walls of indurated mud.
From several orifices volumes of steam rose into the air, and when the
vapor cleared away for a moment glimpses of a mass of boiling mud were
obtained. Before the eruption the mountain top had terminated in three
peaks. Of these the highest had an elevation of about 5,800 feet. The peak
destroyed was the middle one, which was rather smaller than the other two.
"The explosion was caused by steam; there was neither fire nor lava of any
kind. It was, in fact, nothing more nor less than a gigantic boiler
explosion. The whole top and one side of Sho- Bandai-san had been blown
into the air in a lateral direction, and the earth of the mountain was
converted by the escaping steam, at the moment of the explosion, into
boiling mud, part of which was projected into the air to fall at a long
distance, and then take the form of an overflowing river, which rushed
with vast rapidity and covered the country to a depth of from 20 to 150
feet. Thirty square miles of country were thus devastated."
In the devastated lowlands and buried villages below and on the slopes of
the mountain many lives were lost. From the survivors Mr. Norman gathered
some information, enabling him to describe the main features of the
catastrophe. We append a brief outline of his narrative:
MR. NORMAN'S NARRATIVE
"At a few minutes past 8 o'clock in the morning a frightful noise was
heard by the inhabitants of a village ten miles distant from the crater.
Some of them instinctively took to flight, but before they could run much
more than a hundred yards the light of day was suddenly changed into a
darkness more intense than that of midnight; a shower of blinding hot
ashes and sand poured down upon them; the ground was shaken with
earthquakes, and explosion followed explosion, the last being the most
violent of all. Many fugitives, as well as people in the houses, were
overwhelmed by the deluge of mud, none of the fugitives, when overtaken by
death, being more than two hundred yards from the village." From the
statements made by those fortunate enough to escape with their lives, and
from a personal examination of the ground, Mr. Norman inferred that the
mud must have been flung fully six miles through the air and then have
poured in a torrent along the ground for four miles further. All this was
done in less than five minutes, so that "millions of tons of boiling mud
were hurled over the country at the rate of two miles a minute."
The velocity of the mud torrent may perhaps be overestimated, but in its
awful suddenness this catastrophe was evidently one with few equals. The
cone destroyed may have been largely composed of rather fine ashes and
scoriae, which was almost instantaneously converted into mud by the
condensing steam and the boiling water ejected. The quantity of water thus
discharged must have been enormous.
Of the remaining volcanic regions of the Pacific, the New Zealand islands
present some of the most striking examples of activity. All the central
parts, indeed, of the northern island of the group are of a highly
volcanic character. There is here a mountain named Tongariro, on whose
snow-clad summit is a deep crater, from which volcanic vapors are seen to
issue, and which exhibits other indications of having been in a state of
greater activity at a not very remote period of time. There is also, at no
great distance from this mountain, a region containing numerous funnel-
shaped chasms, emitting hot water, or steam, or sulphurous vapors, or
boiling mud. The earthquakes in New Zealand had probably their origin in
this volcanic focus.
THE NEW ZEALAND VOLCANOES
Tongariro has a height of about 6,500 feet, while Egmont, 8,270 feet in
height, is a perfect cone with a perpetual cap of snow. There are many
other volcanic mountains, and also great numbers of mud volcanoes, hot
springs and geysers. It is for the latter that the island is best known to
geologists. Their waters are at or near the boiling point and contain
silica in abundance.
At a place called Rotomahana, in the vicinity of Mount Tarawera, there was
formerly a lake of about one hundred and twenty acres in area, which was
in its way one of the most remarkable bodies of water upon the earth.
Formerly, we say, for this lake no longer exists, it having been destroyed
by the very forces to which it owed its fame. Its waters were maintained
nearly at the boiling point by the continual accession of boiling water
from numerous springs. The most abundant of those sources was situated at
the height of about 100 feet above the level of the lake. It kept
continually filled an oval basin about 250 feet in circumference-- the
margins of which were fringed all round with beautiful pure white
stalactites, formed by deposits of silica, with which the hot water was
strongly impregnated. At various stages below the principal spring were
several others, that contributed to feed the lake at the bottom, in the
centre of which was a small island. Minute bubbles continually escaped
from the surface of the water with a hissing sound, and the sand all round
the lake was at a high temperature. If a stick was thrust into it, very
hot vapors would ascend from the hole. Not far from this lake were several
small basins filled with tepid water, which was very clear, and of a blue
color.
The conditions here were of a kind with those to which are due the great
geysers of Iceland and the Yellowstone Park, but different in the fact
that instead of being intermittent and throwing up jets at intervals, the
springs allowed the water to flow from them in a continuous stream.
THE PINK AND WHITE TERRACES
The silicious incrustations left by the overflow from the large pool had
made a series of terraces, two to six feet high, with the appearance of
being hewn from white or pink marble; each of the basins containing a
similar azure water. These terraces covered an area of about three acres,
and looked like a series of cataracts changed into stone, each edge being
fringed with a festoon of delicate stalactites. The water contained about
eighty-five per cent. of silica, with one or two per cent of iron alumina,
and a little alkali.
There were no more beautiful products of nature upon the earth than those
"pink and white terraces," as they were called. The hot springs of the
Yellowstone have produced formations resembling them, but not their equal
in fairy-like charm. One series of these terraced pools and cascades was
of the purest white tint, the other of the most delicate pink, the waters
topping over the edge of each pool and falling in a miniature cascade to
the one next below, thus keeping the edges built up by a continual renewal
of the silicious incrustation. But all their beauty could not save them
from utter and irremediable destruction by the forces below the earth's
surface.
On June 9, 1886, a great volcanic disturbance began in the Auckland Lake
region with a tremendous earthquake, followed during the night by many
others. At seven the next morning a lead-covered cloud of pumice sand,
advancing from the south, burst and discharged showers of fine dust. The
range of Mount Tarawera seemed to be in full volcanic activity, including
some craters supposed to be extinct, and embracing an area of one hundred
and twenty miles by twenty.
The showers of dust were so thick as to turn day into night for nearly two
days. Some lives were lost, and several villages were destroyed, these
being covered ten feet deep with ashes, dust and clayey mud. The volcanic
phenomena were of the most violent character, and the whole island appears
to have been more or less convulsed. Mount Tarawera is said to be five
hundred feet higher than before the eruption; glowing masses were thrown
up into the air, and tongues of fiery hue, gases or illuminated vapors,
five hundred feet wide, towered up one thousand feet high. The mountain
was 2,700 feet in height.
TARAWERA IN ERUPTION
This eruption presented a spectacle of rarely-equalled grandeur. To
travelers and strangers the greatest resultant loss will be the
destruction of those world-famous curiosities, the white and pink
terraces, in the vicinity of Lake Rotomahana and the region of the famous
geysers. The natives have a superstition that the eruption of the extinct
Tarawera was caused by the profanation of foreign footsteps. It was to
them a sacred place, and its crater a repository for their dead. The first
earthquake occurred in this region. One side of the mountain fell in, and
then the eruption began. The basin of the lake was broken up and
disappeared, but again reappeared as a boiling mud cauldron; craters burst
out in various places, and the beautiful terraces were no more. After the
first day the violence gradually diminished, and in a week had ceased.
Very possibly another lake will be formed, and in time other terraces; but
it is hardly within the range of probability that the beauty of the lost
terraces will ever be paralleled.
In this eruption, as usual, we find the earthquake preceding the volcanic
outburst. New Zealand, like the Philippines, Java and the Japanese
Islands, is situated over a great earth-fissure or line of weakness.
Subsidence or dislocation from tensile strain of the crust took place, and
the influx of water to new regions of heated strata may have developed the
explosive force. The earthquake and the volcano worked together here, as
they frequently do, unfortunately in this case destroying one of the most
beautiful scenes on the surface of the globe.
THE ANTARCTIC VOLCANOES
Much further south, on the frozen shore of Victoria Land in the Antarctic
regions, Sir James Ross, in 1841, sailing in his discovery ships the
Erebus and Terror, discovered two great volcanic mountains, which he named
after those two vessels. Mount Erebus is continually covered, from top to
bottom, with snow and glaciers. The mountain is about 12,000 feet high,
and although the snow reaches to the very edge of the crater, there rise
continually from the summit immense volumes of volcanic fumes, illuminated
by the glare of glowing lava beneath them. The vapors ascend to an
estimated height of 2,200 feet above the top of the mountain.
The San Francisco Calamity - End of Chapters 21-24
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