M4.4 earthquake 144 km NW of Neiafu, Tonga
A magnitude 4.4 earthquake struck 144 km NW of Neiafu, Tonga on Sat, Aug 25, 1973, 7:04 PM GMT+13 (06:04 UTC), 200 km (124 mi) below the surface.
A larger quake followed: M5.5 152 km NNW of Neiafu, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.4 (mb), light
- Local time
- UTC
- 1973-08-25 06:04:41 UTC
- Depth
- 200.0 km (124.3 mi), intermediate-depth
- Epicenter
- 17.572° S, 174.750° 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
- 10
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 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 usp000036v. Read Wed, Sep 30, 2026, 6:53 AM UTC.