M4.7 earthquake 24 km SE of Nemuro, Japan
A magnitude 4.7 earthquake struck 24 km SE of Nemuro, Japan on Thu, Apr 23, 1981, 8:49 AM JST (23:49 UTC), 40 km (25 mi) below the surface.
A larger quake followed: M5.1 75 km SE of Nemuro, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.7 (mb), light
- Local time
- UTC
- 1981-04-22 23:49:02 UTC
- Depth
- 40.4 km (25.1 mi), shallow
- Epicenter
- 43.138° N, 145.747° E
- Region
- Japan
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Depth from
- FROM_LOCATION
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 2 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001da0. Read Tue, Sep 22, 2026, 4:20 PM UTC.