M4.2 earthquake 168 km W of Hihifo, Tonga
A magnitude 4.2 earthquake struck 168 km W of Hihifo, Tonga on Mon, Sep 1, 2025, 5:03 PM GMT-12 (05:03 UTC), 346 km (215 mi) below the surface.
A larger quake followed: M4.4 150 km W of Hihifo, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.2 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2025-09-02 05:03:45 UTC
- Depth
- 345.8 km (214.8 mi), deep
- Epicenter
- 15.975° S, 175.366° 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.
- Location uncertainty
- About 14.7 km horizontally, 8.5 km in depth
- Magnitude uncertainty
- ±0.11
- Depth from
- From location
- Station coverage gap
- 101°
- Stations used
- 31
Nearby
Within 100 km, magnitude 1.5 and up: 2 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 us6000rd2i. Read Sun, Oct 4, 2026, 10:34 PM UTC.