My first glance was over the side; but it was so dark that I could see nothing save a faint gleam under the lighted ports. Then the men with the lead line and lantern came along, and we took several casts of the lead. “No bottom”, was the report; but even while the line was being coiled up after the last cast, the same sensation was again experienced, this time a little stronger. And then, while we were debating what it could possibly mean, one of the hands from forward came along and reassured us.
“I know what it is, sir,” he explained. “I’ve felt the very same thing before, and not very far from here, too—while we was lyin’ in Manila harbour. We couldn’t make out what the mischief it was at first; but when the skipper went ashore shortly afterwards they told him that there’d been a slight shock of earthquake.”
The explanation seemed quite reasonable and satisfactory, so after some little further talk we returned to the drawing-room and resumed our music. But shortly afterward we were again disturbed twice by recurrences of the same phenomenon; we accordingly gave it up, and I went off to my cabin, debating within myself whether I should change into my working rig or turn in.
Finally I decided upon the former alternative, since I did not feel much inclined for sleep, and when I had effected the change I went up on deck, thinking that possibly a spell of fresh air would bring on the desired drowsiness.
As I reached the main-deck four bells (ten o’clock) were struck, and the look-out had just responded with the stereotyped cry of “All’s well!” when there occurred another shock, so violent and protracted that some of the hands cried out in terror. It is difficult to gauge the passage of time accurately at such a moment, but I think this shock must have lasted nearly, if not quite, two minutes; and the sensation to which I can most nearly compare it is that of a ship being swept and jolted over the rough surface of a coral reef by a red-hot tide.
So strong and so alarming was the shock that it created something almost amounting to panic among the crew, a few of whom, in their alarm, raised a cry to launch the boats; and it was not without some difficulty that they were eventually persuaded that the yacht was quite uninjured, and that they were therefore far safer on her deck than they could possibly be in any boat. I was not greatly surprised at their alarm, for the phenomenon was of so unusual and startling a character that, to confess the truth, I felt my own self-possession a little inclined to “wilt”, as my companions would probably have put it.
Meanwhile the saloon party, like everybody else, had rushed on deck in alarm, and were eagerly discussing the occurrence. Monroe assured the two ladies that they need not be in the least degree uneasy, since, strange as the phenomenon might be to us, it was really not so very extraordinary or unusual, especially in the region where we now found ourselves; and he was making good headway in his effort to reassure his audience when suddenly there occurred another and still more violent shock. This was so pronounced that it set the sea all a-quiver with ripples, which seemed to run in the direction of all the points of the compass, crossing and recrossing each other at every conceivable angle with such rapidity that the “shaling” of the water was like that of a strong rapid, while the interlacing—so to speak—of the ripples created a sort of network of miniature breakers, easily visible because of the phosphorescence set up.
The jar and jolting of this last shock were so severe that I really began to entertain serious fears as to whether the ship could withstand them. It seemed to me that if the thing continued very long every rivet in her would be shaken or torn out of place, and the entire fabric must fall to pieces; for the deck was now quivering and jolting so violently that, to maintain our footing, we all instinctively clung to the nearest thing we could lay hands upon.
I must confess that I was more than a little astonished at the courage manifested by Mrs Vansittart and her daughter. There could be no doubt that they were greatly alarmed, yet they were more self-possessed than any of the rest of us—so much so, indeed, that Mrs Vansittart’s voice was almost steady as she directed me to find Mackenzie and instruct him to start the engine. “I think I should feel more comfortable if we had the ship under command,” she explained.
I had just executed this commission and returned to the poop, and the ship was already beginning to gather way, when above the hiss of the agitated water a low rumble became audible, increasing with, inconceivable rapidity to a frightful, deafening roar. The vibrations grew still more violent, and suddenly, with an awful, ear-splitting explosion, we saw a great column of flame shoot high into the air, some two miles away and almost directly ahead of us. It looked for all the world as though a gigantic cannon, planted vertically in the sea, muzzle upward, had been discharged, except that the flash of fire, instead of being only momentary, as in the case of a gun, was continuous. It remained visible for quite ten minutes, and probably endured for a much longer period. The emission of flame was accompanied by a frightful roaring sound, like that of a thousand blast furnaces, intermingled with frequent terrific explosions; and we continued to hear these long after we had lost sight of the fire.