“1817, Dec. Vesuvius in eruption. In the evening a hail storm, accompanied with red sand.”—(Journal of Science, vol. v.)
“1820, Banda. A frightful volcanic eruption, and in the evening an earthquake and a violent hurricane.”—(Annales de Chimie.)
“1822, Oct. Eruption of Vesuvius. Toward its close the volcanic thunder-storm produced an exceedingly violent and abundant fall of rain.”—(Humboldt, Aspects of Nature.)
“1843, Jan. Etna in eruption. Violent hurricanes at Genoa, in the Bay of Biscay, and in Great Britain.
“1843, Feb. Destructive earthquakes in the West Indies, a volcanic eruption at Guadaloupe, followed by hurricanes in the Atlantic.”
“1846, June 26. Volcano of White Island, New Zealand, in eruption. Heavy squalls of wind and hail; it blew as hard as in a typhoon.”—(Commodore Hayes, R.N., in Naut. Mag., 1847.)
“1847, March 20. Volcanic eruption and earthquake in Java; and on the 21st of March, and 3d of April, violent hurricanes.”—(Java Courant.)
“1851, Aug. 5. A frightful eruption of the long dormant volcano of the Pelée Mountain, Martinique. Aug. 17. Hurricane at St. Thomas, etc.; earthquake at Jamaica, etc.
“1852, April 14. Earthquake at Hawaii, and on the 15th a great volcanic eruption. On the 18th a gale of unusual violence lasted thirty-six hours, and did great damage.”—(The Polynesian, April 22, 1852.)
3d. In volcanic regions, earthquakes and hurricanes often occur almost simultaneously, but in no certain order, and without any volcanic eruption being observed.