M5.4 earthquake 160 km WSW of Haveluloto, Tonga
A magnitude 5.4 earthquake struck 160 km WSW of Haveluloto, Tonga on Wed, Dec 18, 1985, 10:41 AM GMT+13 (21:41 UTC), 195 km (121 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.4 (mw), moderate
- Local time
- UTC
- 1985-12-17 21:41:39 UTC
- Depth
- 194.5 km (120.9 mi), intermediate-depth
- Epicenter
- 21.783° S, 176.612° 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.
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.4 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002p0r (also filed as gcmtb121785c, gcmt19851217214147, iscgem508613). Read Tue, Sep 22, 2026, 10:55 AM UTC.