M5.1 earthquake 142 km SW of Hihifo, Tonga
A magnitude 5.1 earthquake struck 142 km SW of Hihifo, Tonga on Fri, Feb 7, 1975, 3:11 PM GMT-12 (03:11 UTC), 169 km (105 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), moderate
- Local time
- UTC
- 1975-02-08 03:11:25 UTC
- Depth
- 169.0 km (105.0 mi), intermediate-depth
- Epicenter
- 16.984° S, 174.597° 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
Nearby
Within 100 km, magnitude 2.1 and up: 0 in the 60 days after this one and 1 in the 30 days before it.
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00009ub. Read Tue, Sep 22, 2026, 9:44 AM UTC.