Global Volcanism Program | Image GVP-11789
This pinnacle of Sofugan, seen here from the W, rises abtou 100 m above the ocean surface south of Torishima volcano. It is the remnant of a large volcano that is 28 km wide at its base and rose 2,200 m above the sea floor. In 1975 discolored sea water was observed about 500 m N.
Copyrighted photo by Makoto Yuasa, 1985 (Japanese Quaternary Volcanoes database, RIODB, http://riodb02.ibase.aist.go.jp/strata/VOL_JP/EN/index.htm and Geol Surv Japan, AIST, http://www.gsj.jp/).
Keywords: submarine volcano