June 16, 1026 Earthquake: Off Masuda, Shimane Prefecture, Japan
A magnitude 7.5 earthquake struck Off Masuda, Shimane Prefecture, Japan on June 16, 1026. It killed 1,001 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
- June 16, 1026
- Place
- Off Masuda, Shimane Prefecture, Japan
- Magnitude
- 7.5 (Ms)
- Tsunami
- Yes: the tsunami it caused
- Epicenter
- 34.800° N, 131.800° E
- Country
- Japan
The toll
- Deaths
- 1,001 with its tsunami and other effects
- Damage
- Severe (about $5 to $25 million) with its tsunami and other effects
- Houses destroyed
- 3,000 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.
June 16, 1026, 34.8 N, 131.8 E, magnitude 7.5. About 3000 houses swept away, more than 1000 deaths. Kamo Island off Masuda sunk. Tsunami attacked the Iwami coast from Kuromatsu to Susa, 6-10 m height around the rivers of Takatsu and Masuda. (reference #150)
Other significant earthquakes nearby
Within 200 km, the deadliest first.
- September 10, 1943, S, Honshu, Japan
- March 14, 1872, SW, Honshu, Japan
- September 4, 1596, Beppu Bay, Japan
- September 10, 1597, Beppu Bay, Japan
- June 2, 1905, Aki, Japan
- July 12, 1676, Tuwano, Japan
- March 19, 1711, Mimasaka, Japan
- March 24, 2001, Hiroshima, Okayama, Honshu, Kagama, Japan
- March 20, 2005, Fukuoka, Genkai, Kyushu, Japan
- June 3, 1978, Hiroshima, S Honshu, Japan
- April 8, 2018, Shimane Prefecture, Japan
- March 13, 2014, Southwestern, Japan
- October 6, 2000, Okayama, Tottori, W, Honshu, Japan
- December 22, 1698, Seikaido-Nankaido, Japan
- December 29, 1715, Seikaido, Japan
More
Significant earthquakes of 1026The 1000sRecent 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 5902.