M4.9 earthquake 143 km NNW of Neiafu, Tonga
A magnitude 4.9 earthquake struck 143 km NNW of Neiafu, Tonga on Mon, Oct 25, 1982, 12:30 AM GMT-12 (12:30 UTC), 69 km (43 mi) below the surface.
A larger quake followed: M5.2 91 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
- 4.9 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1982-10-25 12:30:27 UTC
- Depth
- 68.7 km (42.7 mi), shallow
- Epicenter
- 17.391° S, 174.293° 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.
Nearby
Within 100 km, magnitude 1.9 and up: 1 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 usp0001qgp. Read Thu, Oct 1, 2026, 11:01 AM UTC.