M5.7 earthquake 82 km N of Hihifo, Tonga
A magnitude 5.7 earthquake struck 82 km N of Hihifo, Tonga on Sun, Oct 24, 1971, 3:21 AM GMT-11 (14:21 UTC), 80 km (50 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.7 (mw), moderate
- Local time
- UTC
- 1971-10-24 14:21:04 UTC
- Depth
- 79.7 km (49.5 mi), intermediate-depth
- Epicenter
- 15.221° S, 173.646° 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.
- Magnitude uncertainty
- ±0.50
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 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 iscgem779594. Read Mon, Sep 21, 2026, 4:10 PM UTC.