M4.5 earthquake 112 km E of Miyako, Japan
A magnitude 4.5 earthquake struck 112 km E of Miyako, Japan on Thu, Apr 2, 1981, 9:58 PM JST (12:58 UTC), 24 km (15 mi) below the surface.
A larger quake followed: M4.9 65 km ESE of Hachinohe, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.5 (mb), light
- Local time
- UTC
- 1981-04-02 12:58:52 UTC
- Depth
- 24.0 km (14.9 mi), shallow
- Epicenter
- 39.836° N, 143.226° 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
- FROM_LOCATION
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.965 km ESE of Hachinohe, Japan · 16597 days ago · 52 km deep · 99 km away
- 4.4171 km NE of Miyako, Japan · 16585 days ago · 33 km deep · 88 km away
- 4.5177 km NE of Miyako, Japan · 16584 days ago · 33 km deep · 92 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001czy. Read Tue, Sep 22, 2026, 10:17 AM UTC.