Significant earthquakes of 1808

August 8, 1808 Earthquake: E. Awa, Tokushima Prefecture, Japan

August 8, 1808 · M6.5

A magnitude 6.5 earthquake struck E. Awa, Tokushima Prefecture, Japan on August 8, 1808. It caused a tsunami.

Map

Where it struck, with the other significant earthquakes within 200 km. Circles are sized and colored by magnitude; select one for its page.

The earthquake

Date
August 8, 1808
Place
E. Awa, Tokushima Prefecture, Japan
Magnitude
6.5 (Ms)
Epicenter
33.900° N, 134.800° E
Country
Japan

The toll

The record gives no deaths, injuries or damage for this earthquake.

What the record says

NCEI’s account, from the sources it cites.

On August 8, 1808, there was an earthquake in Tokushima Prefecture, which caused tsunami waves on the coast of the prefecture. (reference #414)

Other significant earthquakes nearby

Within 200 km, the deadliest first.

More

Significant earthquakes of 1808The 1800sRecent earthquakes near hereThis day in weather history

Sources

Significant earthquakes 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. NCEI earthquake 6042.