August 14, 1801 Eruption of Chokaisan

Name: August 14, 1801 Eruption of Chokaisan
Start: 1801-08-14
Location: Chokaisan, Japan

August 14, 1801 · VEI 2 · 8 deaths

Chokaisan in Japan erupted on August 14, 1801 with a Volcanic Explosivity Index of 2. The eruption killed 8 people.

Where it erupted

Chokaisan, Japan.

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The eruption

Date: August 14, 1801
Volcano: Chokaisan, stratovolcano
Country: Japan
Volcanic Explosivity Index: 2, moderate (eruption column 1 to 5 km)
Killed by: Tephra (ash, bombs, lapilli, steam blasts)
Location: 39.099° N, 140.049° E

The toll

Deaths: 8

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.

Climbers killed by volcanic ejecta. (reference #9675)

Volcanic blocks killed 8 mountain climbers. (reference #12936)

Every eruption in 1801 The 1800s Chokaisan Earthquakes near Chokaisan This 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 1246.