M4.1 earthquake 114 km SSW of Hihifo, Tonga
A magnitude 4.1 earthquake struck 114 km SSW of Hihifo, Tonga on Sun, Dec 11, 1977, 10:03 PM GMT-12 (10:03 UTC), 156 km (97 mi) below the surface.
A larger quake followed: M5.2 108 km S 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
- 4.1 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1977-12-12 10:03:41 UTC
- Depth
- 156.0 km (96.9 mi), intermediate-depth
- Epicenter
- 16.962° S, 174.033° 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
- 7
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.2108 km S of Hihifo, Tonga · 17791 days ago · 44 km deep · 44 km away
- 4.9144 km SW of Hihifo, Tonga · 17776 days ago · 300 km deep · 94 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000s18. Read Sat, Oct 3, 2026, 12:50 PM UTC.