July 9, 1989 Earthquake: Ito, Ajiro, Honshu, Japan
A magnitude 5 earthquake struck Ito, Ajiro, Honshu, Japan on July 9, 1989 at 02:09:09 UTC, 5 km below the surface.
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 9, 1989
- Time
- 02:09:09 UTC
- Place
- Ito, Ajiro, Honshu, Japan
- Magnitude
- 5 (Ms)
- Focal depth
- 5 km (3 mi)
- Intensity
- 6 on the Modified Mercalli scale
- Tsunami
- None recorded
- Epicenter
- 34.942° N, 139.193° E
- Country
- Japan
The toll
- Damage
- Moderate (about $1 to $5 million)
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.
Other significant earthquakes nearby
Within 200 km, the deadliest first.
- September 1, 1923, Tokyo, Yokohama, Japan
- May 27, 1293, Kamakura, Japan
- November 11, 1855, Tokyo, Japan
- December 30, 1703, Off SW Boso Peninsula, Japan
- September 20, 1498, Enshunada Sea, Japan
- January 12, 1945, S, Honshu, Japan
- October 28, 1707, Enshunada, Japan
- February 3, 1605, Enshunada, Japan
- December 23, 1854, Enshunada Sea, Japan
- December 17, 1096, Enshunada, Japan
- November 25, 1930, Idu, Honshu, Japan
- April 9, 1858, N, Hida, Japan
- September 12, 1495, Kamakura, Japan
- July 29, 1649, Tokyo, Japan
- March 1, 1633, Odawara, Japan
More
Significant earthquakes of 1989The 1900sEvery quake the USGS located in 1989Recent 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 5205.