M4.3 earthquake 20 km NW of ?zu, Japan
A magnitude 4.3 earthquake struck 20 km NW of ?zu, Japan on Fri, May 31, 1985, 11:01 AM JST (02:01 UTC), 70 km (43 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1985-05-31 02:01:43 UTC
- Depth
- 70.0 km (43.5 mi), intermediate-depth
- Epicenter
- 33.627° N, 132.396° E
- Region
- Japan
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
What happened
The USGS’s account of the effects of this earthquake.
Felt (II JMA) at Kure, Matsuyama and Uwajima and (I JMA) at Fukuyama, Hiroshima and Oita.
From the USGS event page for usp0002fc0. U.S. Geological Survey text and figures are in the public domain.
Did you feel it?
No one has reported feeling this quake to the USGS.
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 0 in the 60 days after this one and 2 in the 30 days before it.
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002fc0. Read Thu, Oct 1, 2026, 1:39 PM UTC.