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Upolu

Shield volcano · 1,100 m · Samoa

Upolu — Photo: Wikimedia Commons · CC BY-SA 2.5 · Wikimedia Commons

Upolu sits on the Pacific Plate, in a subduction zone.

Elevation: 1,100 m
Type: Shield volcano
Tectonic Setting: Subduction zone, oceanic crust
Dominant Rock: Basalt / Picro-Basalt
Plate: Pacific Plate
Country: Samoa
Last Eruption: unknown

Nearby Cities

Cities of more than 20,000 people within 100 km. At least 62,000 people live in those within 30 km.

11 kmApia62,000 people

Wikipedia article

Sources : Global Volcanism Program, 2026. Volcanoes of the World (v. 5.4.0; 7 Aug 2026), Smithsonian Institution, doi:10.5479/si.GVP.VOTW5-2026.5.4 (volcano.si.edu) · NOAA NCEI · USGS · Wikidata