M5.1 earthquake 46 km SW of Neiafu, Tonga
A magnitude 5.1 earthquake struck 46 km SW of Neiafu, Tonga on Mon, Oct 6, 1975, 5:01 AM GMT+13 (16:01 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
- 5.1 (mb), moderate
- Local time
- UTC
- 1975-10-05 16:01:20 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 18.889° S, 174.349° 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
- 22
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.1 and up: 1 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 usp0000d22. Read Tue, Sep 22, 2026, 7:25 AM UTC.