Midagahara

April 23, 1858 Eruption of Midagahara

April 23, 1858 · Deaths: many

Midagahara in Japan erupted on April 23, 1858.

Where it erupted

Midagahara, Japan, with its other significant eruptions.

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The eruption

Date
April 23, 1858
Volcano
Midagahara, stratovolcano
Country
Japan
Killed by
Secondary (post-eruption) mudflows
Location
36.571° N, 137.590° E

The toll

Deaths
Many (about 101 to 1,000)

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.

Mudflows following earthquake-generated landslide killed many; eruption uncertain. No eruption. (reference #9675)

Other significant eruptions of Midagahara

More

Every eruption in 1858The 1800sMidagaharaEarthquakes near MidagaharaThis 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 6484.