10 Mar 2013 (seismic swarm)
Typical eruption style
To-shima volcano eruptions
: between 9000 and 5000 years ago
No recent earthquakes
|Time||Mag. / Depth||Distance||Location|
To-shima volcano (利島, Toshima) in the northern Izu Island chain is a stratovolcano forming a small 2 x 2.4 km island south of Oshima volcano.
To-shima volcano is basaltic-to-basaltic andesite in composition and lies about 20 km west of the main volcanic front. The island has steep cliffs up to 300 m high on 3 sides. On the more gently sloping northern side, the small village of To-shima is located. The latest known eruption of To-shima volcano was betwenn about 9000 and 4000 years ago and produced a lava flow from the Kajiana crater.