M4.2 earthquake 193 km SE of Shing?, Japan
A magnitude 4.2 earthquake struck 193 km SE of Shing?, Japan on Fri, Jan 21, 1977, 3:51 PM JST (06:51 UTC), 408 km (254 mi) below the surface.
A larger quake followed: M4.5 138 km SE of Shing?, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.2 (mb), light
- Local time
- UTC
- 1977-01-21 06:51:47 UTC
- Depth
- 408.0 km (253.5 mi), deep
- Epicenter
- 32.501° N, 137.454° 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
- 10
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 1 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 usp0000m9p. Read Tue, Sep 29, 2026, 11:29 AM UTC.