Bogoslof Island bō´gəslôf [key], volcanic islet, c.1.2 mi (.75 km) long, SW Alaska, Aleutian Islands, in the Bering Sea, 61 mi (98 km) NW of Unalaska . The island first appeared in 1796 and has grown and changed shape as a result of eruptions that have recurred irregularly into the 21st cent. Bogoslof, also known as Agasagook, is a breeding site for seabirds, seals, and sea lions.
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