Augustine Island

Augustine Island ô´gəstēn, –tĭn ôgŭs´tĭn , unihabited volcanic island, S Alaska, in Kamishak Bay at mouth of Cook Inlet. The active Augustine (or St. Augustine) volcano, which forms the entire island, rises to 4,134 ft (1,260 m) ash from its last major eruption (1986) reached Anchorage, some 180 mi (290 km) to the northeast. The 1883 eruption is believed to have caused a 30-ft (9-m) tsunami locally.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

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