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Attu

(Encyclopedia)Attu, island: see Aleutian Islands. ...

Dutch Harbor

(Encyclopedia)Dutch Harbor: see Aleutian Islands; Unalaska. ...

Adak

(Encyclopedia)Adak āˈdăk, äˈdäk [key]: see Aleutian Islands. ...

Amchitka

(Encyclopedia)Amchitka ămchĭtˈkə [key], island, 40 mi (64 km) long, in the Rat group of the Aleutian Islands, W Alaska. It was a site in 1965 and 1971 for the underground detonation of nuclear devices, its smal...

Alaska Peninsula

(Encyclopedia)Alaska Peninsula, SW Alaska, extending 500 mi (800 km) SW from the mainland, separating Bristol Bay and the Bering Sea from Cook Inlet, the Shelikof Strait, and Pacific Ocean. The Aleutian Range, runn...

Oceania

(Encyclopedia)Oceania ōshēănˈĭkə [key], collective name for the approximately 25,000 islands of the Pacific, usually excluding such nontropical areas as the Ryukyu and Aleutian islands and Japan, as well as T...

Jaggar,Thomas Augustus, Jr.

(Encyclopedia)Jaggar,Thomas Augustus, Jr., 1871–1953, American geologist and volcanologist, b. Philadelphia, Ph.D. Harvard, 1897. One of the team of U.S. scientists (1902) who surveyed the eruptions in the West I...

Bogoslof Island

(Encyclopedia)Bogoslof Island bōˈgəslôf [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 gro...

Umnak

(Encyclopedia)Umnak o͞omˈnăk [key], island, c.83 mi (134 km) long, off SW Alaska, one of the largest of the Aleutian Islands. Its two lobes, connected by an isthmus, are marked by volcanic features. The volcanic...

Okmok

(Encyclopedia)Okmok, shield volcano on Umnak, SW Alaska, in the Aleutian Islands. Rising to 3,520 ft (1,073 m) and extending over most of NE Umnak, the 22-mi-wide (35-km) volcano contains two 6-mi-wide (10-km) part...