M5.1 earthquake 97 km E of ‘Ohonua, Tonga
A magnitude 5.1 earthquake struck 97 km E of ‘Ohonua, Tonga on Sun, Dec 28, 1975, 12:53 AM GMT+13 (11:53 UTC), 37 km (23 mi) below the surface.
A larger quake followed: M5.3 52 km SE of ‘Ohonua, 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
- 1975-12-27 11:53:45 UTC
- Depth
- 37.0 km (23.0 mi), shallow
- Epicenter
- 21.493° S, 174.030° 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.
- Stations used
- 36
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.1 and up: 2 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 usp0000e3s. Read Tue, Sep 22, 2026, 12:12 PM UTC.