M4.7 earthquake 73 km E of Mutsu, Japan
A magnitude 4.7 earthquake struck 73 km E of Mutsu, Japan on Wed, Apr 4, 1979, 6:32 PM JST (09:32 UTC), 70 km (43 mi) below the surface.
A larger quake followed: M5.3 76 km ENE of Mutsu, 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
- 1979-04-04 09:32:24 UTC
- Depth
- 70.0 km (43.5 mi), intermediate-depth
- Epicenter
- 41.391° N, 142.079° 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.
- Stations used
- 26
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 1 in the 60 days after this one and 2 in the 30 days before it.
After
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000zu8. Read Mon, Sep 28, 2026, 6:30 AM UTC.