Oshima is the northernmost of the Izu Islands, seen here from the NW in Sagami Bay. The broad, low-relief volcano forms an 11 x 13 km island constructed over the remnants of three older edifices. It contains a 4-km-wide caldera containing the Miharayama cone, seen here producing a small plume in 1961, which has produced numerous recorded eruptions.

Photo by Richard Fiske, 1961 (Smithsonian Institution).

This image is made available under the Public Domain Dedication CC0 license, but proper attribution is appreciated.

Keywords: island volcano

Izu-Oshima