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green NORMAL, 2024-02-06 02:15:04 UTC

Ofu and Olosega are two islands formed from two shield volcanoes in the United States Territory of American Samoa. Volcanic activity in American Samoa is within the area of responsibility of the U.S. Geological Survey’s Hawaiian Volcano Observatory, based in Hilo on the Island of Hawai‘i.

Facts Block

Location: American Samoa

Latitude: 14.18° S

Longitude: 169.62° W

Elevation: 639 (m) 2,096 (f)

Volcano type: Shield

Composition: Basalt

Most recent eruption: unknown

Nearby towns: Olosega, Ofu

Threat Potential: Low*

*based on the National Volcano Early Warning System

Color photograph of islands from space
NASA Astronaut image of Ofu-Olosega islands (Manu'a Islands, American Samoa) in the South Pacific Ocean. NASA Space Shuttle image ISS002-E-6878 (…).



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