M4.3 earthquake 141 km W of Itoman, Japan
A magnitude 4.3 earthquake struck 141 km W of Itoman, Japan on Sat, May 2, 1981, 4:16 PM JST (07:16 UTC), 117 km (73 mi) below the surface.
A larger quake followed: M4.7 118 km WSW of Itoman, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (mb), light
- Local time
- UTC
- 1981-05-02 07:16:38 UTC
- Depth
- 116.8 km (72.6 mi), intermediate-depth
- Epicenter
- 26.308° N, 126.267° 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: 2 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.7118 km WSW of Itoman, Japan · 16548 days ago · 76 km deep · 67 km away
- 4.3130 km WNW of Naha, Japan · 16546 days ago · 128 km deep · 28 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001dg9. Read Tue, Sep 29, 2026, 7:06 AM UTC.