M5.3 earthquake 133 km WNW of Pangai, Tonga
A magnitude 5.3 earthquake struck 133 km WNW of Pangai, Tonga on Fri, Aug 20, 1976, 2:00 PM GMT+13 (01:00 UTC), 223 km (139 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, body-wave), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1976-08-20 01:00:41 UTC
- Depth
- 223.0 km (138.6 mi), intermediate-depth
- Epicenter
- 19.164° S, 175.427° 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
- 13
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.3 and up: 1 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 usp0000hyr. Read Fri, Oct 2, 2026, 9:25 PM UTC.