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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)
Typical eruption style: unknown
Doyo volcano eruptions: unknown, strong hydrothermal activity in 1990
Last earthquakes nearby:
TimeMag. / DepthDistanceLocation
Thu, 16 May
Thu, 16 May 10:55 UTCM 3.5 / 459 km13 km小笠原諸島西方沖 (West off the Ogasawara Islands)
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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