Seguam Island (Aleut: Saĝuugamax;[1] 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.

Seguam Island
Highest point
Elevation	3,458 ft (1,054 m)
Coordinates	52°19′24″N 172°27′58″W
Geography
Location	Aleutian Islands, Alaska, US
Topo map	USGS Seguam
Geology
Mountain type	Stratovolcanoes
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.

References

Further reading

• "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

This article about a location in the Aleutians West Census Area, Alaska is a stub. You can help Wikipedia by expanding it.

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