Yoteizan (Japan)

Status Unknown Eruption -1050 1888m
Stratovolcano (Subduction zone / Continental crust (> 25 km))

Yoteizan is a symmetrical andesitic-to-dacitic stratovolcano with a Fuji-like profile the forms a prominent landmark NW of Toya caldera. Its summit is truncated by a 700-m-wide crater that is cut on its NW rim by overlapping smaller craters. Deep radial gullies cut the flanks. The latest eruption from the main edifice took place about 5000-6000 years ago. Hangetsu-ko (Half Moon Lake), a tuff cone on the lower NW flank, was estimated from stratigraphic evidence to have erupted about 3000 years ago.

Yotei volcano, seen here from the NW, is a symmetrical stratovolcano whose flanks are cut by deep radial valleys. The summit of the 1893-m volcano is truncated by a large crater, which has several subcraters on its NW rim. The age of the last eruption of Yotei volcano is not known.

Photo by Ichiyo Moriya (Kanazawa University).

Last updated 2019-08-04 00:28:03