M4.3 earthquake 141 km SW of Hihifo, Tonga
A magnitude 4.3 earthquake struck 141 km SW of Hihifo, Tonga on Sat, Jun 25, 1977, 4:58 AM GMT-12 (16:58 UTC), 142 km (88 mi) below the surface.
A larger quake followed: M5.1 140 km SSW 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
- 4.3 (mb), light
- Local time
- UTC
- 1977-06-25 16:58:09 UTC
- Depth
- 142.0 km (88.2 mi), intermediate-depth
- Epicenter
- 16.919° S, 174.661° 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
- 10
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 usp0000pfh. Read Tue, Sep 22, 2026, 12:13 PM UTC.