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Doyo volcano

submarine volcano -860 m / -2,821 ft
Izu Islands, Japan, 27.68°N / 140.8°E
Current status: dormant (1 out of 5)
Doyo volcano books
Typical eruption style: unknown
Doyo volcano eruptions: unknown, strong hydrothermal activity in 1990 No recent earthquakes
TimeMag. / DepthDistanceLocation
Doyo Seamount is the southernmost of the 7 Shichiyo Seamounts, named for the 7 days of the week. Doyo ("Saturday") is a basaltic-andesite submarine caldera that rises 2340 m from the sea floor to within 860 m of the sea surface.
It has a large horseshoe-shaped 3 x 10 km wide summit caldera. Major hydrothermal activity was observed in July 1990, and the volcano was reclassified as active by the Japan Meteorological Agency.


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