M5.1 earthquake 99 km SSE of Hihifo, Tonga
A magnitude 5.1 earthquake struck 99 km SSE of Hihifo, Tonga on Mon, Oct 20, 1980, 1:35 PM GMT-11 (00:35 UTC), 37 km (23 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
- 1980-10-21 00:35:45 UTC
- Depth
- 37.0 km (23.0 mi), shallow
- Epicenter
- 16.759° S, 173.388° 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
- 40
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.
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001abm. Read Thu, Oct 1, 2026, 2:51 PM UTC.