M3.4 earthquake 12 km E of Enzan, Japan
A magnitude 3.4 earthquake struck 12 km E of Enzan, Japan on Thu, Sep 7, 1978, 10:48 AM JST (01:48 UTC), 161 km (100 mi) below the surface.
A larger quake followed: M4.6 4 km S of Sakado, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.4 (mb, body-wave), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1978-09-07 01:48:25 UTC
- Depth
- 161.0 km (100.0 mi), intermediate-depth
- Epicenter
- 35.712° N, 138.871° 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
- 13
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 2 in the 30 days before it.
After
- 3.70 km SW of Isesaki, Japan · 17537 days ago · 135 km deep · 73 km away
- 4.64 km S of Sakado, Japan · 17515 days ago · 125 km deep · 52 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000we7. Read Fri, Oct 2, 2026, 7:17 PM UTC.