M4.5 earthquake 57 km S of Hihifo, Tonga
A magnitude 4.5 earthquake struck 57 km S of Hihifo, Tonga on Tue, Jul 9, 1974, 1:04 PM GMT-11 (00:04 UTC), 31 km (19 mi) below the surface.
A larger quake followed: M5.5 78 km SSE 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
- 4.5 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1974-07-10 00:04:17 UTC
- Depth
- 31.0 km (19.3 mi), shallow
- Epicenter
- 16.472° S, 173.807° 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
- 9
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.578 km SSE of Hihifo, Tonga · 19064 days ago · 46 km deep · 31 km away
- 4.874 km E of Hihifo, Tonga · 19057 days ago · 33 km deep · 96 km away
- 4.571 km E of Hihifo, Tonga · 19041 days ago · 33 km deep · 95 km away
- 4.4119 km SSE of Hihifo, Tonga · 19033 days ago · 33 km deep · 67 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000071z. Read Fri, Oct 2, 2026, 7:57 AM UTC.