M5.5 earthquake 73 km ENE of ‘Ohonua, Tonga
A magnitude 5.5 earthquake struck 73 km ENE of ‘Ohonua, Tonga on Sat, Jun 23, 1973, 8:51 AM GMT+13 (19:51 UTC), 33 km (21 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.5 (mb), moderate
- Local time
- UTC
- 1973-06-22 19:51:40 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 21.166° S, 174.263° 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.
- Depth from
- OPERATOR_ASSIGNED
- Stations used
- 67
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 usp00002b7 (also filed as iscgem759745). Read Tue, Sep 22, 2026, 5:59 AM UTC.