Aira

November 8, 1779 Eruption of Aira

November 8, 1779 · VEI 4 · 153 deaths

Aira in Japan erupted on November 8, 1779 with a Volcanic Explosivity Index of 4. The eruption killed 153 people.

Where it erupted

Aira, Japan, with its other significant eruptions.

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The eruption

Date
November 8, 1779
Volcano
Aira, stratovolcano
Country
Japan
Volcanic Explosivity Index
4, large (eruption column 10 to 25 km)
Killed by
Tephra (ash, bombs, lapilli, steam blasts); Waves or tsunami; Indirect deaths (disease, starvation, exposure)
Location
31.577° N, 130.659° E

The toll

Deaths
153

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.

Official report dated 1780 0115 gives 79 men, 74 women killed. One person drowned while attempting to cross the Seto Channel which was filled with pumice. Inscription on stone monument erected in 1779 notes 148 killed and gives villages. Sapper (Reference #1667) gives 40 killed and notes that some sources say 16-17,000! Koto (Reference #2060) notes 153 killed and may more wounded; 1,576 horses, 135 oxen were also killed. Some sources report 9,600 humans killed. (reference #9675)

Other significant eruptions of Aira

More

Every eruption in 1779The 1700sAiraEarthquakes near AiraThis 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 858.