M5.4 earthquake 76 km SSE of Pangai, Tonga
A magnitude 5.4 earthquake struck 76 km SSE of Pangai, Tonga on Fri, Mar 7, 1975, 3:30 PM GMT+13 (02:30 UTC), 37 km (23 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.4 (ms), moderate
- Local time
- UTC
- 1975-03-07 02:30:26 UTC
- Depth
- 37.0 km (23.0 mi), shallow
- Epicenter
- 20.416° S, 173.990° 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
- 41
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.4 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.670 km SE of Pangai, Tonga · 18824 days ago · 33 km deep · 9 km away
- 4.9113 km ENE of ‘Ohonua, Tonga · 18794 days ago · 33 km deep · 54 km away
- 5.1120 km SSE of Pangai, Tonga · 18787 days ago · 40 km deep · 45 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000a4y (also filed as iscgem731013). Read Tue, Sep 29, 2026, 7:45 PM UTC.