Significant earthquakes of 1770

May 27, 1770 Earthquake: Morioka, Japan

May 27, 1770 · M7.4 · Deaths: some

A magnitude 7.4 earthquake struck Morioka, Japan on May 27, 1770.

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
May 27, 1770
Place
Morioka, Japan
Magnitude
7.4
Tsunami
None recorded
Epicenter
38.600° N, 142.000° E
Country
Japan

The toll

Deaths
Some (about 51 to 100)

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.

Other significant earthquakes nearby

Within 200 km, the deadliest first.

More

Significant earthquakes of 1770The 1700sRecent 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 1401.