M5.3 earthquake 183 km NE of Neiafu, Tonga
A magnitude 5.3 earthquake struck 183 km NE of Neiafu, Tonga on Mon, Feb 21, 1983, 5:46 AM GMT-12 (17:46 UTC), 33 km (21 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.3 (mb), moderate
- Local time
- UTC
- 1983-02-21 17:46:25 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 17.516° S, 172.714° 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
- OPERATOR_ASSIGNED
Nearby
Within 100 km, magnitude 2.3 and up: 0 in the 60 days after this one and 1 in the 30 days before it.
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001t7n (also filed as gcmtb022183c, gcmt19830221174625, iscgem583309). Read Tue, Sep 22, 2026, 8:45 PM UTC.