M5.4 earthquake 82 km NE of Hihifo, Tonga
A magnitude 5.4 earthquake struck 82 km NE of Hihifo, Tonga on Wed, Sep 6, 1978, 12:26 PM GMT-11 (23:26 UTC), 33 km (21 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.4 (mb), moderate
- Local time
- UTC
- 1978-09-06 23:26:23 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 15.361° S, 173.330° 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
- 18
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.4 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.897 km NE of Hihifo, Tonga · 17549 days ago · 33 km deep · 16 km away
- 4.791 km NE of Hihifo, Tonga · 17538 days ago · 47 km deep · 24 km away
- 5.082 km NNE of Hihifo, Tonga · 17509 days ago · 33 km deep · 36 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000we5. Read Mon, Sep 28, 2026, 2:18 AM UTC.