Asamayama

August 18, 1961 Eruption of Asamayama

August 18, 1961 · VEI 2 · 1 death

Asamayama in Japan erupted on August 18, 1961 with a Volcanic Explosivity Index of 2. The eruption killed 1 person.

Where it erupted

Asamayama, Japan, with its other significant eruptions.

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The eruption

Date
August 18, 1961
Volcano
Asamayama, complex volcano
Country
Japan
Volcanic Explosivity Index
2, moderate (eruption column 1 to 5 km)
Killed by
Tephra (ash, bombs, lapilli, steam blasts)
Location
36.406° N, 138.523° E

The toll

Deaths
1

Where the literature gives no number, NCEI records a description on a scale of 1 to 4, printed here in its words. Damage is in millions of US dollars of the year of the event, not adjusted for inflation.

What the record says

NCEI’s account, from the sources it cites.

A climber at the summit at the time of an eruption was killed. (reference #9675)

1 person went missing. Volcanic blocks and tephra fall over an extensive area caused damage to agricultural and pasture land. (reference #12936)

Other significant eruptions of Asamayama

More

Every eruption in 1961The 1900sAsamayamaEarthquakes near AsamayamaThis day in weather history

Sources

Volcanoes and significant eruptions from NOAA’s National Centers for Environmental Information, Global Historical Hazard Database, cited as NCEI/WDS, doi:10.7289/V5PN93H7. Public domain. Read 2026-09-24. Volcano numbers are the Smithsonian Institution’s Global Volcanism Program’s. NCEI event 1176.