M4.6 earthquake 8 km WSW of Kamiiso, Japan
A magnitude 4.6 earthquake struck 8 km WSW of Kamiiso, Japan on Sat, Apr 17, 1982, 8:43 AM JST (23:43 UTC), 165 km (103 mi) below the surface.
A larger quake followed: M4.7 16 km SW 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
- 4.6 (mb), light
- Local time
- UTC
- 1982-04-16 23:43:14 UTC
- Depth
- 165.4 km (102.8 mi), intermediate-depth
- Epicenter
- 41.801° N, 140.547° 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 1.6 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 usp0001ks4. Read Tue, Sep 22, 2026, 10:29 AM UTC.