“1848, Oct., Nov. New Zealand.—Succession of earthquake shocks, and several tempests.
“1836, Oct. At Valparaiso, a destructive tempest and severe earthquakes.”—(Nautical Magazine, 1848.)
When an earthquake of excessive intensity occurs, as at Lisbon, in 1755, the volcanic craters, which act as the safety-valves of the regions in which they are placed, are supposed to be sealed up; and it is a remarkable and highly-suggestive fact, that no hurricane follows such an earthquake. The number of instances of the concurrence of ordinary earthquakes and hurricanes might easily be increased, but the preceding suffice to show the generality of their coincidence, both as to time and place.
4th. The breaking of water-spouts on mountains sometimes accompanies hurricanes.
In 1766, during the great Martinique hurricane, before cited.
“1826, Nov. At Teneriffe, enormous and most destructive water-spouts fell on the culminating tops of the mountains, and a furious cyclone raged around the island. The same occurred in 1812 and in 1837.”—(Espy and Grey’s Western Australia.)
“1829. Moray.—Floods and earthquakes, preceded by water-spouts and a tremendous storm.”—(Sir T. D. Lander.)
“1826, June. Hurricanes, accompanied by water-spouts and fall of avalanches, in the White Mountains.”—(Silliman’s American Journal, vol. xv.)
5th. The fall of an avalanche sometimes produces a hurricane.
“1819, Dec. A part (360,000,000 cubic feet) of the glacier fell from the Weisshorn (9,000 feet). At the instant, when the snow and ice struck the inferior mass of the glacier, the pastor of the village of Randa, the sacristan, and some other persons, observed a light. A frightful hurricane immediately succeeded.”—(Edinburg Philosophical Journal, 1820.)