M4.2 earthquake 109 km ENE of Hasaki, Japan
A magnitude 4.2 earthquake struck 109 km ENE of Hasaki, Japan on Fri, Oct 1, 1982, 12:51 AM JST (15:51 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.7 44 km ESE of Takahagi, 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
- 1982-09-30 15:51:44 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 36.268° N, 141.852° 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.
- Depth from
- OPERATOR_ASSIGNED
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 5 in the 30 days before it.
After
- 4.744 km ESE of Takahagi, Japan · 16043 days ago · 53 km deep · 69 km away
- 4.566 km ESE of Takahagi, Japan · 16042 days ago · 52 km deep · 47 km away
- 4.351 km ESE of Hasaki, Japan · 16030 days ago · 43 km deep · 83 km away
- 3.933 km E of ?arai, Japan · 16006 days ago · 45 km deep · 81 km away
Before
- 4.586 km ENE of Hasaki, Japan · 16072 days ago · 33 km deep · 33 km away
- 4.871 km ENE of Kashima-shi, Japan · 16075 days ago · 48 km deep · 43 km away
- 4.251 km ESE of Hitachi, Japan · 16089 days ago · 53 km deep · 63 km away
- 4.233 km ESE of ?arai, Japan · 16092 days ago · 42 km deep · 84 km away
- 4.250 km ESE of Hitachi, Japan · 16093 days ago · 50 km deep · 65 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001py0. Read Tue, Sep 22, 2026, 4:10 PM UTC.