M4.4 earthquake 90 km NE of Hihifo, Tonga
A magnitude 4.4 earthquake struck 90 km NE of Hihifo, Tonga on Tue, Apr 25, 1978, 6:01 AM GMT-11 (17:01 UTC), 166 km (103 mi) below the surface.
A larger quake followed: M6.2 80 km NNE 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
- 4.4 (mb), light
- Local time
- UTC
- 1978-04-25 17:01:17 UTC
- Depth
- 166.0 km (103.1 mi), intermediate-depth
- Epicenter
- 15.429° S, 173.155° 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
- 8
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 0 in the 30 days before it.
After
- 4.495 km NNW of Hihifo, Tonga · 17674 days ago · 333 km deep · 97 km away
- 5.490 km NNE of Hihifo, Tonga · 17672 days ago · 33 km deep · 32 km away
- 5.1122 km NE of Hihifo, Tonga · 17655 days ago · 38 km deep · 33 km away
- 6.280 km NNE of Hihifo, Tonga · 17643 days ago · 33 km deep · 47 km away
- 4.435 km ESE of Hihifo, Tonga · 17636 days ago · 33 km deep · 81 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000u93. Read Wed, Sep 30, 2026, 11:03 AM UTC.