April 25, 1843 Earthquake: Yezo, Kushiro, Nemuro, Hokkaido, Japan
A magnitude 8.4 earthquake struck Yezo, Kushiro, Nemuro, Hokkaido, Japan on April 25, 1843. It killed 45 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
- April 25, 1843
- Place
- Yezo, Kushiro, Nemuro, Hokkaido, Japan
- Magnitude
- 8.4 (Ms)
- Tsunami
- Yes: the tsunami it caused
- Epicenter
- 42.000° N, 146.000° E
- Country
- Japan
The toll
- Deaths
- 45 with its tsunami and other effects
- Damage
- Limited (under about $1 million); Moderate (about $1 to $5 million) with its tsunami and other effects
- Houses destroyed
- 75 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.
April 25, 1843, magnitude 8.4, E. Hokkaido - S. Kuril Islands. (reference #79)
April 25, 1843, 44.7 N, 149.7 E, depth 40 km, magnitude 8.2, intensity IX-X, tsunami. (reference #223)
April 25, 1843, Japan, Yezo (Kushiro, Nemuro), sea waves, intensity III which corresponds to an earthquake which destroyed towns and devastated districts. (reference #1055)
April 25, 1843, Yedo, magnitude 8.4, tsunami. (reference #1002)
Other significant earthquakes nearby
Within 200 km, the deadliest first.
- March 4, 1952, Hokkaido, Japan
- June 17, 1973, Hokkaido Island, Japan
- September 25, 2003, Hokkaido, Japan
- March 22, 1894, Off Coast of Honshu, Japan
- March 18, 1904, Hokkaido, Japan
- June 13, 1893, Nemuro, Japan
- November 15, 1961, SE. Hokkaido Island, Japan
- May 22, 1910, Hokkaido, Japan
- May 1, 1839, SE. Hokkaido Island, Japan
- August 11, 1961, SE. Hokkaido Island, Japan
- December 25, 1900, Kuril Islands, Russia
- December 6, 2004, Kushiro, Hokkaido, Japan
- September 11, 1935, Kuril Islands, Russia
- November 28, 2004, Bekkai, Kushiro, Nemouro, Hokkaido, Japan
- June 26, 1973, Kuril Islands, Russia
More
Significant earthquakes of 1843The 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 1849.