M5.1 earthquake 100 km W of Hihifo, Tonga
A magnitude 5.1 earthquake struck 100 km W of Hihifo, Tonga on Sat, Feb 27, 1982, 3:49 AM GMT-12 (15:49 UTC), 226 km (140 mi) below the surface.
A larger quake followed: M5.4 177 km WNW of Hihifo, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.1 (mb), moderate
- Local time
- UTC
- 1982-02-27 15:49:09 UTC
- Depth
- 226.0 km (140.4 mi), intermediate-depth
- Epicenter
- 16.067° S, 174.725° 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
- CONSTRAINED_BY_DEPTH_PHASES
Nearby
Within 100 km, magnitude 2.1 and up: 3 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001jvs. Read Tue, Sep 22, 2026, 2:58 AM UTC.