M4.6 earthquake 11 km SSE of Asahi, Japan
A magnitude 4.6 earthquake struck 11 km SSE of Asahi, Japan on Mon, Sep 6, 1982, 6:07 PM JST (09:07 UTC), 58 km (36 mi) below the surface.
A larger quake followed: M4.9 8 km E of Ichihara, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (mb), light
- Local time
- UTC
- 1982-09-06 09:07:37 UTC
- Depth
- 58.0 km (36.0 mi), shallow
- Epicenter
- 35.619° N, 140.683° 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.
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 4 in the 60 days after this one and 6 in the 30 days before it.
After
- 4.871 km ENE of Kashima-shi, Japan · 16083 days ago · 48 km deep · 90 km away
- 4.98 km E of Ichihara, Japan · 16072 days ago · 81 km deep · 47 km away
- 4.75 km E of Sawara, Japan · 16047 days ago · 46 km deep · 31 km away
- 4.351 km ESE of Hasaki, Japan · 16038 days ago · 43 km deep · 64 km away
Before
- 4.251 km ESE of Hitachi, Japan · 16097 days ago · 53 km deep · 96 km away
- 4.233 km ESE of ?arai, Japan · 16100 days ago · 42 km deep · 67 km away
- 4.250 km ESE of Hitachi, Japan · 16101 days ago · 50 km deep · 95 km away
- 4.824 km SSE of Katsuura, Japan · 16113 days ago · 79 km deep · 80 km away
- 5.430 km ESE of Hitachi, Japan · 16119 days ago · 59 km deep · 96 km away
- 5.126 km E of ?hara, Japan · 16124 days ago · 33 km deep · 39 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001peq. Read Wed, Sep 30, 2026, 9:57 PM UTC.