Global Volcanism Program | Image GVP-10845
Iwakisan rises above farmlands below its SE flank. The peak to the left is Chokaisan and the 2-km-wide summit crater is filled by a lava dome that forms the high point of the volcano. Eruptions have occurred since 1597 CE and have consisted primarily of small-to-moderate phreatic explosions.
Copyrighted photo by Yoshihiro Ishizuka (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/).