Samoa · Shield volcano
Upolu
- Type
- Shield volcano
- Elevation
- 1100m
- Last eruption
- Unknown
- Type
- Shield volcano
- Country
- Samoa
- Region
- Southern Pacific / Samoan Hotspot Volcano Group
- Elevation
- 1100m
- Coordinates
- -13.935, -171.720
- Last eruption
- Unknown
- Tectonic setting
- Subduction zone / Oceanic crust (< 15 km)
- Landform
- Shield
- Major rock type
- Basalt / Picro-basalt
Geological summary
The massive, basaltic shield volcano forming 75-km-long Upolu Island in Samoa is elongated in an E-W direction and was constructed during two periods of extensive eruptions during the Pliocene and Pleistocene.
Excerpt from the Global Volcanism Program, Smithsonian Institution · Read the full summary on GVP →
From Wikipedia
Upolu is an island in Samoa, formed by a massive basaltic shield volcano which rises from the seafloor of the western Pacific Ocean. The island is 75 kilometres long and 1,125 square kilometres in area, making it the second largest of the Samoan Islands by area. With approximately 145,000 inhabitants, it is by far the most populous of the Samoan Islands. Upolu is situated to the southeast of Savai'i, the "big island". Apia, the capital, is in the middle of the north coast, and Faleolo International Airport at the western end of the island. The island has not had any historically recorded eruptions, although there is evidence of three lava flows, dating back only to between a few hundred and a few thousand years ago.
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Eruption history
GlossaryDetailed timeline
No eruption records available.
Nearby volcanoes
External links
⚠ For reference only. Not for emergency response.