M5.7 earthquake 114 km ENE of Hihifo, Tonga
A magnitude 5.7 earthquake struck 114 km ENE of Hihifo, Tonga on Thu, Mar 25, 1971, 2:49 AM GMT-11 (13:49 UTC), 15 km (9 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
- 1971-03-25 13:49:02 UTC
- Depth
- 15.0 km (9.3 mi), shallow
- Epicenter
- 15.422° S, 172.882° 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
- ±0.69
- 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: 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 iscgem786618. Read Tue, Sep 22, 2026, 8:41 AM UTC.