M4.5 earthquake 115 km W of Neiafu, Tonga
A magnitude 4.5 earthquake struck 115 km W of Neiafu, Tonga on Wed, Dec 11, 1985, 4:09 PM GMT+13 (03:09 UTC), 200 km (124 mi) below the surface.
A larger quake followed: M5.4 95 km NW 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
- 4.5 (mb), light
- Local time
- UTC
- 1985-12-11 03:09:40 UTC
- Depth
- 200.0 km (124.3 mi), intermediate-depth
- Epicenter
- 18.671° S, 175.076° 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.
- Depth from
- OPERATOR_ASSIGNED
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 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 usp0002nrm. Read Tue, Sep 22, 2026, 10:46 AM UTC.