Global Volcanism Program | Image GVP-02082
Oshima volcano in Sagami Bay, seen here with N to the top, is the northernmost of the Izu Islands. It forms an 11 x 13 km island and was constructed over the remnants of three older edifices. It is capped by a 4-km-wide caldera with the rim is prominent in the left-central part of the summit. The central cone of Miharayama, forming the darker area at the center, is the site of numerous historical eruptions.
Photo courtesy of the Volcanological Society of Japan, 1986.