M4.7 earthquake 62 km NE of Hihifo, Tonga
A magnitude 4.7 earthquake struck 62 km NE of Hihifo, Tonga on Fri, Sep 6, 1974, 9:36 AM GMT-11 (20:36 UTC), 124 km (77 mi) below the surface.
A larger quake followed: M5.6 89 km NNW of Hihifo, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.7 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1974-09-06 20:36:02 UTC
- Depth
- 124.0 km (77.1 mi), intermediate-depth
- Epicenter
- 15.617° S, 173.328° 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
- 28
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 5 in the 60 days after this one and 3 in the 30 days before it.
After
- 5.2136 km NE of Hihifo, Tonga · 19016 days ago · 33 km deep · 77 km away
- 4.797 km NNE of Hihifo, Tonga · 19007 days ago · 33 km deep · 59 km away
- 4.8126 km E of Hihifo, Tonga · 18968 days ago · 33 km deep · 85 km away
- 5.689 km NNW of Hihifo, Tonga · 18963 days ago · 97 km deep · 91 km away
- 4.974 km NE of Hihifo, Tonga · 18961 days ago · 33 km deep · 26 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00007y9. Read Sun, Oct 4, 2026, 6:26 AM UTC.