October 31, 1341 Earthquake: Jusanko, Japan
A magnitude 7 earthquake struck Jusanko, Japan on October 31, 1341. It killed 2,600 people, counting the tsunami it caused.
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
- October 31, 1341
- Place
- Jusanko, Japan
- Magnitude
- 7 (Ms)
- Tsunami
- Yes: the tsunami it caused
- Epicenter
- 41.000° N, 139.500° E
- Country
- Japan
The toll
- Deaths
- 2,600 with its tsunami and other effects
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.
Oct 31, 1341, 41 N, 139.5 E, magnitude 7. 2600 people drowned at Jusan-minato along the coast of which 860 persons killed and 600 persons killed at the area around the Ewaki river. (reference #150)
Other significant earthquakes nearby
Within 200 km, the deadliest first.
- March 8, 1766, Hirosaki, Japan
- July 31, 1640, Uchiura Bay, Japan
- June 19, 1694, Ugo, Japan
- August 31, 1896, Senhoku, Ugo, Japan
- October 18, 1644, NW. Honshu Island, Japan
- May 26, 1983, Akita, Honshu, Japan
- September 25, 1810, Oga, Japan
- May 27, 1704, N of Nosiro, Japan
- May 1, 1939, NW, Honshu, Japan
- February 8, 1793, Aomori, Japan
- June 21, 1983, N. Honshu Island, Japan
- May 7, 1964, NW. Honshu Island, Japan
- December 11, 1964, NW. Honshu Island, Japan
- May 7, 1964, NW. Honshu Island, Japan
- June 9, 1983, Noshiro, Japan
More
Significant earthquakes of 1341The 1300sRecent 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 5942.