M4.9 earthquake 213 km SSW of ‘Ohonua, Tonga
A magnitude 4.9 earthquake struck 213 km SSW of ‘Ohonua, Tonga on Wed, Oct 29, 1975, 6:51 PM GMT+13 (05:51 UTC), 48 km (30 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (mb), light
- Local time
- UTC
- 1975-10-29 05:51:08 UTC
- Depth
- 48.0 km (29.8 mi), shallow
- Epicenter
- 23.148° S, 175.648° 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
- 22
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 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 usp0000db3. Read Tue, Sep 22, 2026, 7:56 AM UTC.