October 18, 1935 Earthquake: Sanriku, Japan
An earthquake struck Sanriku, Japan on October 18, 1935 at 00:11:00 UTC, 10 km below the surface. 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
- October 18, 1935
- Time
- 00:11:00 UTC
- Place
- Sanriku, Japan
- Focal depth
- 10 km (6 mi)
- Tsunami
- Yes: the tsunami it caused
- Epicenter
- 40.700° N, 144.300° 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.
Reference #414:
1935, October 18, 9:12 local time. There was an earthquake with source at sea off the coast of Iwate Prefecture. It caused a weak tsunami.
Iida et al. (1967): 18.X; 0h12m; 40.3 N., 144.2 E.; 20-40 km; M=7.1, m=-2.
Other significant earthquakes nearby
Within 200 km, the deadliest first.
- June 15, 1896, Sanriku, Japan
- December 2, 1611, Sanriku, Japan
- March 2, 1933, Sanriku, Japan
- December 6, 1616, Sanriku, Japan
- May 16, 1968, Off East Coast of Honshu Island, Japan
- March 4, 1952, Hokkaido, Japan
- August 23, 1856, Oshima, Japan
- August 9, 1901, Off Northeast Coast Honshu, Japan
- December 28, 1994, Honshu, Japan
- September 25, 2003, Hokkaido, Japan
- April 8, 1994, Off East Coast of Honshu Island, Japan
- March 14, 2012, Hokkaido, Japan
- August 20, 2016, Off East Coast Honshu, Japan
- January 29, 1763, Sanriku,mutsu, Japan
- February 20, 1979, Iwate, Japan
More
Significant earthquakes of 1935The 1900sEvery quake the USGS located in 1935Recent 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 6105.