M6.3 earthquake 82 km SSE of ‘Ohonua, Tonga
A magnitude 6.3 earthquake struck 82 km SSE of ‘Ohonua, Tonga on Sat, Jul 18, 1970, 9:04 AM GMT+13 (20:04 UTC), 21 km (13 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, moment), strong
- Magnitude from
- ISC-GEM global catalog
- Local time
- UTC
- 1970-07-17 20:04:47 UTC
- Depth
- 20.8 km (12.9 mi), shallow
- Epicenter
- 22.026° S, 174.652° 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
- ±0.21
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 3.3 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 iscgem793837. Read Sat, Oct 3, 2026, 7:50 PM UTC.