M6.0 earthquake 137 km ESE of Yamada, Japan
A magnitude 6.0 earthquake struck 137 km ESE of Yamada, Japan on Wed, Sep 15, 1971, 11:55 PM JST (14:55 UTC), 25 km (15 mi) below the surface.
A larger quake followed: M6.3 119 km E of Yamada, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.0 (mw), strong
- Local time
- UTC
- 1971-09-15 14:55:08 UTC
- Depth
- 24.5 km (15.2 mi), shallow
- Epicenter
- 39.126° N, 143.480° 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.
- Magnitude uncertainty
- ±0.20
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 3 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 iscgem780342. Read Tue, Sep 22, 2026, 11:35 AM UTC.