M4.3 earthquake 70 km SW of Yonakuni, Japan
A magnitude 4.3 earthquake struck 70 km SW of Yonakuni, Japan on Tue, Apr 21, 1981, 10:15 AM GMT+8 (02:15 UTC), 7 km (5 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (mb), light
- Local time
- UTC
- 1981-04-21 02:15:10 UTC
- Depth
- 7.4 km (4.6 mi), shallow
- Epicenter
- 23.975° N, 122.554° 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 1.5 and up: 4 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.213 km ESE of Hualien City, Taiwan · 16583 days ago · 60 km deep · 84 km away
- 3.946 km E of Yilan, Taiwan · 16578 days ago · 73 km deep · 87 km away
- 4.368 km SW of Yonakuni, Japan · 16568 days ago · 33 km deep · 5 km away
- 4.016 km ENE of Hualien City, Taiwan · 16567 days ago · 17 km deep · 82 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001d93. Read Tue, Sep 22, 2026, 5:28 PM UTC.