M5.0 earthquake 75 km E of ‘Ohonua, Tonga
A magnitude 5.0 earthquake struck 75 km E of ‘Ohonua, Tonga on Thu, Jun 19, 1975, 9:50 PM GMT+13 (08:50 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.4 90 km SSE of Pangai, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.0 (mb), moderate
- Local time
- UTC
- 1975-06-19 08:50:38 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 21.393° S, 174.223° 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 2.0 and up: 4 in the 60 days after this one and 4 in the 30 days before it.
After
- 5.490 km SSE of Pangai, Tonga · 18718 days ago · 23 km deep · 87 km away
- 5.785 km E of ‘Ohonua, Tonga · 18708 days ago · 15 km deep · 18 km away
- 4.9117 km E of ‘Ohonua, Tonga · 18698 days ago · 33 km deep · 49 km away
- 4.856 km NE of ‘Ohonua, Tonga · 18668 days ago · 109 km deep · 55 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000bng. Read Tue, Sep 22, 2026, 10:01 AM UTC.