Daisetsu, Hokkaido's tallest volcano, is made of overlapping stratovolcanoes, including Asahi-dake, the most recently active vent. A single historic eruption in 1400 was dated by tephrochronology. It was moderate in size (VEI=2) and explosive. Photograph of Asahi-dake and fumerole fields courtesy of Mike Lyvers.
Asahi-dake and fumerole fields. All photograph courtesy of Mike Lyvers.
Climbing the volcano.
Large blocks of the flank of Asahi-dake.
Source of Information:
Simkin, T., and Siebert, L., 1994, Volcanoes of the World: Geoscience Press, Tucson, Arizona, 349 p.