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Volcan sous-marin -920 m / -3,018 ft
Izu Islands, Japon, 28.32°N / 140.57°ECondition actuelle
: normal / en sommeil
(1 sur 5) | ReportsMokuyo livres
Style éruptif tipique
: unknownEruptions du volcan Mokuyo
: unknown, hydrothermal activity in 1990
No recent earthquakes
|Heure||Mag. / Depth||Distance||Location|
Mokuyo volcano is an active seamount belonging to the 7 Shichiyo Seamounts, named for the 7 days of the week. Mokuyo ("Thursday") contains a basaltic-andesite submarine caldera that rises 1780 m from the sea floor to within 920 m of the sea surface. The summit caldera is 3 x 2.3 km wide and about 450 m deep. It contains a 180-m-high lava dome in its center. Major hydrothermal activity was observed in July 1990, and the volcano was reclassified as active by the Japan Meteorological Agency.