M4.6 earthquake 255 km WNW of Neiafu, Tonga
A magnitude 4.6 earthquake struck 255 km WNW of Neiafu, Tonga on Tue, Dec 13, 1977, 3:41 AM GMT+13 (14:41 UTC), 385 km (239 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (mb), light
- Local time
- UTC
- 1977-12-12 14:41:09 UTC
- Depth
- 385.0 km (239.2 mi), deep
- Epicenter
- 17.809° S, 176.236° 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
- 14
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 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 usp0000s1b. Read Tue, Sep 22, 2026, 10:24 AM UTC.