M5.6 earthquake 87 km E of ‘Ohonua, Tonga
A magnitude 5.6 earthquake struck 87 km E of ‘Ohonua, Tonga on Sun, Jul 3, 1966, 5:09 PM GMT+13 (04:09 UTC), 16 km (10 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.6 (mw), moderate
- Local time
- UTC
- 1966-07-03 04:09:29 UTC
- Depth
- 15.6 km (9.7 mi), shallow
- Epicenter
- 21.261° S, 174.116° 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
- ±0.33
- 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 iscgem845165. Read Wed, Sep 23, 2026, 5:05 AM UTC.