M4.3 earthquake 69 km W of Kamiiso, Japan
A magnitude 4.3 earthquake struck 69 km W of Kamiiso, Japan on Tue, Jul 28, 1981, 2:28 AM JST (17:28 UTC), 173 km (107 mi) below the surface.
A larger quake followed: M5.4 58 km WSW of Kamiiso, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1981-07-27 17:28:51 UTC
- Depth
- 172.8 km (107.4 mi), intermediate-depth
- Epicenter
- 41.727° N, 139.816° 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 1.5 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 usp0001eyt. Read Thu, Oct 1, 2026, 11:51 PM UTC.