Seguam Island (Aleut: Saĝuugamax; Russian: Остров Сигуам) is a small volcanic island in the Andreanof Islands group in the Aleutian Islands of Alaska. The island is mountainous and oval shaped with a land area of 80.04 square miles (207.3 km2). It is 16 miles (26 km) long and 6.8 miles (10.9 km) wide. The 2000 census reported a population of one person.
|Elevation||3,458 ft (1,054 m)|
|Location||Aleutian Islands, Alaska, US|
|Topo map||USGS Seguam|
|Last eruption||May to August 1993|
The island consists of several overlapping stratovolcanoes, and it contains two calderas each with central volcanic cones. About 10 historical eruptions have been recorded since the late 18th century, the most recent in 1993. All recent activity has occurred at Pyre Peak, the cone within the western caldera and the highest point on the island, and has produced explosive eruptions and basaltic lava flows.
- Bergsland, K. (1994). Aleut Dictionary. Fairbanks: Alaska Native Language Center.
- "Seguam". Global Volcanism Program. Smithsonian Institution.
- Alaska Volcano Observatory: Seguam Island
- Seguam Island: Block 1083, Census Tract 1, Aleutians West Census Area, Alaska United States Census Bureau
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