M5.1 earthquake 58 km S of Hihifo, Tonga
A magnitude 5.1 earthquake struck 58 km S of Hihifo, Tonga on Mon, Jun 23, 1975, 4:11 AM GMT-11 (15:11 UTC), 79 km (49 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
- 1975-06-23 15:11:09 UTC
- Depth
- 79.0 km (49.1 mi), intermediate-depth
- Epicenter
- 16.484° S, 173.849° 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
- 17
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.1 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.353 km SE of Hihifo, Tonga · 18697 days ago · 33 km deep · 51 km away
- 4.934 km N of Hihifo, Tonga · 18688 days ago · 83 km deep · 94 km away
- 4.672 km S of Hihifo, Tonga · 18678 days ago · 43 km deep · 16 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000br4. Read Thu, Oct 1, 2026, 12:59 AM UTC.