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Global Volcanism Program | Image GVP-05613

Tokachi, seen here erupting in December 1988, consists of a group of cones and lava domes arranged on a NE-SW line above a plateau of welded Pleistocene tuffs. Numerous explosion craters and scoria cones are located on the upper flanks. Frequent historical eruptions, consisting mostly of mild-to-moderate phreatic explosions like this one have been recorded since the mid-19th century. Two larger eruptions occurred in 1926 and 1962. Photo by Mario Yoshida, 1989 (Hokkaido University).

Tokachi, seen here erupting in December 1988, consists of a group of cones and lava domes arranged on a NE-SW line above a plateau of welded Pleistocene tuffs. Numerous explosion craters and scoria cones are located on the upper flanks. Frequent historical eruptions, consisting mostly of mild-to-moderate phreatic explosions like this one have been recorded since the mid-19th century. Two larger eruptions occurred in 1926 and 1962.

Photo by Mario Yoshida, 1989 (Hokkaido University).

Keywords: ashfall | emissions | plume | gas | steam | vent | eruption | deposit | ash | ash plume | phreatic


Tokachidake