United States · Shield volcano
Vailulu'u
Vailuluu
- Type
- Shield volcano
- Elevation
- 592m (submarine)
- Last eruption
- 2003
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- Type
- Shield volcano
- Country
- United States
- Region
- Southern Pacific / Samoan Hotspot Volcano Group
- Elevation
- 592m (submarine)
- Coordinates
- -14.215, -169.058
- Last eruption
- 2003
- Tectonic setting
- Subduction zone / Oceanic crust (< 15 km)
- Landform
- Shield
- Major rock type
- Basalt / Picro-basalt
Geological summary
Vailulu`u, a massive basaltic seamount discovered in 1975, rises 4,200 m from the sea floor to a depth of 590 m.
Excerpt from the Global Volcanism Program, Smithsonian Institution · Read the full summary on GVP →
From Wikipedia
Vailuluʻu is a volcanic seamount discovered in 1975. It rises from the sea floor to a depth of 593 m (1,946 ft) and is located between Taʻu and Rose islands at the eastern end of the Samoa hotspot chain. The basaltic seamount is considered to mark the current location of the Samoa hotspot. The summit of Vailuluʻu contains a 2 km wide, 400 m deep oval-shaped caldera. Two principal rift zones extend east and west from the summit, parallel to the trend of the Samoan hotspot. A third less prominent rift extends southeast of the summit.
Wikipedia · CC BY-SA · Read full article →
Eruption history
3 recordedGlossaryRecord summary
- Confirmed eruptions
- 3
- Uncertain eruptions
- 0
- Span of confirmed record
- 1973 – 2003
- Largest confirmed eruption
- VEI 0 (2003, the most recent of 3)
- Confirmed eruptions since 1900
- 3
Detailed timeline
- 2003 (±2 yrs)VEI 0Observed2003-04-16 – end unknownWest side of caldera (Nafanua)
- 1995VEI 0Observed1995-01-09 – 1995-01-29
- 1973VEI 0Observed1973-07-10 – 1973-07-10
Nearby volcanoes
External links
⚠ For reference only. Not for emergency response.