M4.8 earthquake 71 km NE of Hihifo, Tonga
A magnitude 4.8 earthquake struck 71 km NE of Hihifo, Tonga on Sun, Oct 3, 1976, 1:01 PM GMT-11 (00:01 UTC), 39 km (24 mi) below the surface.
A larger quake followed: M5.1 114 km NE 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
- 4.8 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1976-10-04 00:01:30 UTC
- Depth
- 39.0 km (24.2 mi), shallow
- Epicenter
- 15.553° S, 173.274° 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
- 35
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.991 km E of Hihifo, Tonga · 18259 days ago · 25 km deep · 68 km away
- 5.1114 km NE of Hihifo, Tonga · 18232 days ago · 38 km deep · 43 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000jrb. Read Thu, Oct 1, 2026, 9:33 PM UTC.