July 23, 1982 Earthquake: Ibaraki, Japan
A magnitude 6.8 earthquake struck Ibaraki, Japan on July 23, 1982 at 14:23:53 UTC, 37 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
- July 23, 1982
- Time
- 14:23:53 UTC
- Place
- Ibaraki, Japan
- Magnitude
- 6.8 (Ms)
- Focal depth
- 37 km (23 mi)
- Tsunami
- Yes: the tsunami it caused
- Epicenter
- 36.194° N, 141.702° E
- Country
- Japan
The toll
The record gives no deaths, injuries or damage for this earthquake.
Other significant earthquakes nearby
Within 200 km, the deadliest first.
- November 11, 1855, Tokyo, Japan
- November 4, 1677, Off SE. Boso Peninsula, Japan
- July 29, 1649, Tokyo, Japan
- July 6, 1905, Off Fukushima, Japan
- June 20, 1894, Tokyo, Japan
- April 11, 2011, Honshu, Japan
- March 16, 2022, Off Fukushima, Japan
- December 17, 1987, Chiba Perfecture, Tokyo, Honshu, Japan
- August 3, 1974, Kakiota, Mito, Tokyo, Honshu, Japan
- September 24, 1980, Tokyo, Yokohama, Japan
- November 5, 1938, Near E Coast Honshu, Japan
- February 13, 2021, Off Fukushima, Japan
- May 7, 2008, E Coast, Honshu, Japan
- January 16, 1961, Kashima, Japan
- January 16, 1961, Kashima, Japan
More
Significant earthquakes of 1982The 1900sEvery quake the USGS located in 1982Recent 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 6601.