M5.0 earthquake 127 km W of Naha, Japan
A magnitude 5.0 earthquake struck 127 km W of Naha, Japan on Fri, Apr 17, 1981, 5:44 AM JST (20:44 UTC), 110 km (68 mi) below the surface.
A larger quake followed: M5.6 116 km NNE of Hirara, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.0 (mb), moderate
- Local time
- UTC
- 1981-04-16 20:44:43 UTC
- Depth
- 109.6 km (68.1 mi), intermediate-depth
- Epicenter
- 26.362° N, 126.412° 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 2.0 and up: 4 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001d6e. Read Tue, Sep 29, 2026, 5:29 AM UTC.