M4.6 earthquake 179 km NNW of Neiafu, Tonga
A magnitude 4.6 earthquake struck 179 km NNW of Neiafu, Tonga on Sun, Oct 24, 1976, 2:24 PM GMT-12 (02:24 UTC), 188 km (117 mi) below the surface.
A larger quake followed: M5.5 147 km N of Neiafu, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1976-10-25 02:24:28 UTC
- Depth
- 188.0 km (116.8 mi), intermediate-depth
- Epicenter
- 17.291° S, 174.902° 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
Nearby
Within 100 km, magnitude 1.6 and up: 1 in the 60 days after this one and 1 in the 30 days before it.
After
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000k19. Read Fri, Oct 2, 2026, 7:15 PM UTC.