M5.1 earthquake 73 km E of ‘Ohonua, Tonga
A magnitude 5.1 earthquake struck 73 km E of ‘Ohonua, Tonga on Tue, May 13, 1975, 10:34 PM GMT+13 (09:34 UTC), 25 km (16 mi) below the surface.
A larger quake followed: M6.0 108 km ENE of ‘Ohonua, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.1 (ms), moderate
- Local time
- UTC
- 1975-05-13 09:34:00 UTC
- Depth
- 25.0 km (15.5 mi), shallow
- Epicenter
- 21.433° S, 174.246° 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
- 39
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.1 and up: 9 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.866 km S of ‘Ohonua, Tonga · 18759 days ago · 33 km deep · 89 km away
- 6.0108 km ENE of ‘Ohonua, Tonga · 18754 days ago · 43 km deep · 59 km away
- 4.7121 km SSE of Pangai, Tonga · 18750 days ago · 33 km deep · 82 km away
- 5.5131 km ENE of ‘Ohonua, Tonga · 18749 days ago · 19 km deep · 77 km away
- 5.1118 km SSE of Pangai, Tonga · 18749 days ago · 33 km deep · 83 km away
- 5.1101 km SSE of Pangai, Tonga · 18728 days ago · 33 km deep · 90 km away
- 5.075 km E of ‘Ohonua, Tonga · 18723 days ago · 33 km deep · 5 km away
- 5.490 km SSE of Pangai, Tonga · 18718 days ago · 23 km deep · 92 km away
- 5.785 km E of ‘Ohonua, Tonga · 18708 days ago · 15 km deep · 23 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000b0p. Read Tue, Sep 22, 2026, 9:38 AM UTC.