M4.6 earthquake 102 km SE of Neiafu, Tonga
A magnitude 4.6 earthquake struck 102 km SE of Neiafu, Tonga on Sat, Aug 11, 1973, 7:55 AM GMT+13 (18:55 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
- 4.6 (mb), light
- Local time
- UTC
- 1973-08-10 18:55:20 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 19.172° S, 173.177° 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
- 15
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 0 in the 60 days after this one and 2 in the 30 days before it.
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000323. Read Tue, Sep 22, 2026, 10:29 AM UTC.