The wonders of the world

by John Loraine Abbott

“Five populous towns were entirely destroyed by the eruption; more than twelve hundred of the inhabitants perished amidst the ruins; and twenty thousand who survived the awful catastrophe, were stripped of their possessions and reduced to beggary.

“The subsequent appearance of the volcanic mountain was most melancholy and terrific. Its side, formerly so well cultivated, and which afforded a prospect the most picturesque, is now become a barren sand. The stones, sand and ashes, which cover it, in some places exceed the depth of ten and twelve yards; and on the ground where lately stood the village of Budiao, there are spots in which the cocoa-trees are almost covered. In the ruined villages, and through the whole extent of the eruption, the ground remains buried in the sand to the depth of half a yard, and scarcely a single tree is left alive. The crater of the volcano has lowered more than one hundred and twenty feet; and the south side discovers a spacious and horrid mouth, which is frightful to the view. Three new ones have opened at a considerable distance from the principal crater, through which also smoke and ashes are incessantly emitted. In short, the most beautiful villages of Camarines, and the principal part of that fine province, are deeply covered with barren sand.”

ISLANDS WHICH HAVE RISEN FROM THE SEA.

Besides the convulsions of nature displayed in volcanoes, the most remarkable particulars of which we have given in our history of mountains, other operations are carried on below the fathomless depths of the sea, the nature of which can only be conjectured by the effects produced. Nor is it more astonishing that inflammable substances should be found beneath the bottom of the sea, than at similar depths on land, and that there also the impetuous force of fire should cause the imprisoned air and elastic gases to expand, and, by its mighty force, should drive the earth at the bottom of the sea above its surface. These marine volcanoes are perhaps more frequent, though they do not so often come within the reach of human observation, as those on land; and stupendous must be the operations carried on, when matter is thrown up to an extent which the ingenuity of man does not enable him to reach by fathoming.

Many instances have occurred, as well in ancient as in modern times, of islands having been formed in the midst of the sea; and their sudden appearance has constantly been preceded by violent agitations of the surrounding waters, accompanied by dreadful noises, and in some instances by fiery eruptions from the newly formed isles, which are composed of various substances, frequently intermixed with a considerable quantity of volcanic lava. Such islands remain for ages barren, but in a long course of time become abundantly fruitful. It is a matter of curious inquiry, whether springs are found on such newly created spots, when the convulsions which gave them birth have subsided; but on this point it would seem that we are not possessed of any certain information, as it does not appear that they have been visited by any naturalist with the express view of recording their properties.

Among the writers of antiquity who have transmitted accounts of islands which have thus started up to the view of the astonished spectator, Seneca asserts that, in his time, the island of Therasea, in the Egean sea, was seen to rise in this manner by several mariners, who were sailing near the point of its ascent. Pliny’s relation is still more extraordinary; for he says that in the Mediterranean, thirteen islands emerged at once from the sea, the cause of which he ascribes rather to the retiring of the waters, than to any subterraneous operation of nature: but he speaks at the same time of the island of Hiera, in the vicinity of Therasea, as having been formed by subterraneous explosions, and enumerates several others said to have been derived from a similar origin, in one of which he says, a great abundance of fishes were found, of which, however, all who ate, perished soon afterward.

It is to the Grecian archipelago, and the Azores, or Western isles, that we are to look for the grandest and most surprising instances of this phenomenon. We will select an example from each of these groups of islands, beginning with the latter.

In December, 1720, a violent earthquake was felt on the island of Tercera, one of the Azores. And on the following morning, a new island, which had sprung up in the night, made its appearance, and a huge column of smoke was seen rising from it. The pilot of a ship which attempted to approach it, sounded on one of these newly formed islands, with a line of sixty fathoms, but could not find a bottom. On the opposite side, the sea was deeply tinged with various colors, white, blue and green; and was very shallow. This island was larger on its first appearance than at some distance of time afterward; it at length sunk beneath the level of the sea, and is now no longer visible.

What can be more surprising than to see fire, not only force its way out of the bowels of the earth, but likewise make for itself a passage through the waters of the sea! What can be more extraordinary, or foreign to our common notions of things, than to observe the bottom of the sea rise up in a mountain above its surface, and become so firm an island as to be able to resist the violence of the greatest storms! We know that subterraneous fires, when pent up in a narrow passage, are able to elevate a mass of earth as large as an island; but that this should be done in so regular and precise a manner, that the water of the sea should not be able to penetrate and extinguish those fires; and that, after they should have exhausted themselves, the mass of earth should not fall down, or sink again with its own weight, but still remain in a manner suspended over the great arch below; this seems more surprising than any of the facts which have been related of Mount Etna, Vesuvius, or any other volcano.

In the first part of the Transactions of the Royal Society for the year 1812, Captain Tillard, of the British navy, has published a very interesting narrative of a similar phenomenon, which occurred in the same sea near the Azores. We give this narrative in his own words.