M4.6 earthquake 74 km SE of Hasaki, Japan
A magnitude 4.6 earthquake struck 74 km SE of Hasaki, Japan on Tue, Sep 15, 1981, 2:20 AM JST (17:20 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.7 67 km SSE of Hasaki, 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
- 1981-09-14 17:20:40 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 35.270° N, 141.427° 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 1.6 and up: 3 in the 60 days after this one and 6 in the 30 days before it.
After
- 4.767 km SSE of Hasaki, Japan · 16433 days ago · 33 km deep · 18 km away
- 5.251 km E of ?hara, Japan · 16426 days ago · 38 km deep · 43 km away
- 4.449 km SE of Hasaki, Japan · 16407 days ago · 33 km deep · 25 km away
Before
- 4.843 km NE of Hasaki, Japan · 16447 days ago · 39 km deep · 90 km away
- 4.284 km SE of Hasaki, Japan · 16448 days ago · 33 km deep · 16 km away
- 4.53 km WNW of ?hara, Japan · 16455 days ago · 66 km deep · 98 km away
- 5.651 km E of ?hara, Japan · 16457 days ago · 44 km deep · 43 km away
- 5.56 km ESE of Hasaki, Japan · 16458 days ago · 58 km deep · 68 km away
- 4.410 km SSE of Hasaki, Japan · 16467 days ago · 33 km deep · 65 km away
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001fvx. Read Thu, Sep 24, 2026, 9:43 AM UTC.