M6.1 earthquake 166 km W of Haveluloto, Tonga
A magnitude 6.1 earthquake struck 166 km W of Haveluloto, Tonga on Fri, Sep 27, 1968, 3:37 AM GMT+13 (14:37 UTC), 249 km (155 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.1 (mw), strong
- Local time
- UTC
- 1968-09-26 14:37:47 UTC
- Depth
- 249.2 km (154.8 mi), intermediate-depth
- Epicenter
- 21.071° S, 176.812° 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.
- Magnitude uncertainty
- ±0.30
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 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 iscgem817397. Read Tue, Sep 22, 2026, 8:06 AM UTC.