stratovolcano 99 m / 325 ft
Izu Islands, Japan, 29.79°N / 140.35°ECurrent status
(1 out of 5)Sofugan volcano books
Typical eruption style
Sofugan volcano eruptions
: possible activity in 1975
|Time||Mag. / Depth||Distance||Location|
|Mon, 17 Apr|
|Mon, 17 Apr 09:40 UTC||M 4.6 / 50.7 km||11 km||- Izu Islands, Japan region|
Sofugan is a steep vertical pinnacle that rises 99 m above the sea surface south of Tori-shima volcano. Its dramatic shape gave it its nickname "Lot's Wife Rocks."
In 1975, discolored sea water was observed about 500 m north of Sofugan, and the volcano was reclassified as active by the Japan Meteorological Agency.
The basaltic-to-andesitic pinnacle is the remnant of a large eroded stratovolcano 28 km wide at its base and rising 2200 m above the sea floor. A submarine depression is located between the pinnacle and a curved submarine ridge to the SW rising to less than 150 m of the sea surface.