M6.3 earthquake 129 km S of ‘Ohonua, Tonga
A magnitude 6.3 earthquake struck 129 km S of ‘Ohonua, Tonga on Tue, Jul 30, 1968, 12:12 AM GMT+13 (11:12 UTC), 50 km (31 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.3 (mw), strong
- Local time
- UTC
- 1968-07-29 11:12:03 UTC
- Depth
- 50.1 km (31.1 mi), shallow
- Epicenter
- 22.509° S, 174.935° 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
- ±0.40
- 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: 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 iscgem819475. Read Tue, Sep 22, 2026, 1:56 PM UTC.