M4.1 earthquake 285 km SW of Vaini, Tonga
A magnitude 4.1 earthquake struck 285 km SW of Vaini, Tonga on Mon, Apr 11, 1983, 1:12 PM GMT+13 (00:12 UTC), 188 km (117 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.1 (mb), light
- Local time
- UTC
- 1983-04-11 00:12:27 UTC
- Depth
- 187.5 km (116.5 mi), intermediate-depth
- Epicenter
- 23.264° S, 176.830° W
- Region
- Tonga
- 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: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001ub8. Read Tue, Sep 29, 2026, 5:30 AM UTC.