M5.1 earthquake 222 km SSW of ‘Ohonua, Tonga
A magnitude 5.1 earthquake struck 222 km SSW of ‘Ohonua, Tonga on Sat, Dec 18, 1976, 1:25 PM GMT+13 (00:25 UTC), 158 km (98 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.1 (mb, body-wave), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1976-12-18 00:25:23 UTC
- Depth
- 158.0 km (98.2 mi), intermediate-depth
- Epicenter
- 23.234° S, 175.639° 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
- 7
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.1 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 usp0000ktb. Read Thu, Oct 1, 2026, 5:25 PM UTC.