M4.9 earthquake 74 km ENE of Mutsu, Japan
A magnitude 4.9 earthquake struck 74 km ENE of Mutsu, Japan on Wed, Sep 27, 1978, 12:55 PM JST (03:55 UTC), 68 km (42 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (mb), light
- Local time
- UTC
- 1978-09-27 03:55:12 UTC
- Depth
- 68.0 km (42.3 mi), shallow
- Epicenter
- 41.434° N, 142.088° 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
- 107
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 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 usp0000wrr. Read Tue, Sep 22, 2026, 8:30 AM UTC.