M4.6 earthquake 120 km NE of Neiafu, Tonga
A magnitude 4.6 earthquake struck 120 km NE of Neiafu, Tonga on Tue, Apr 24, 1973, 8:02 PM GMT-12 (08:02 UTC), 78 km (48 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
- 1973-04-25 08:02:55 UTC
- Depth
- 78.0 km (48.5 mi), intermediate-depth
- Epicenter
- 17.816° S, 173.253° 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.
- Stations used
- 23
Nearby
Within 100 km, magnitude 1.6 and up: 0 in the 60 days after this one and 1 in the 30 days before it.
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00001jb. Read Tue, Sep 22, 2026, 9:30 PM UTC.