M4.5 earthquake 73 km NNE of Hihifo, Tonga
A magnitude 4.5 earthquake struck 73 km NNE of Hihifo, Tonga on Sat, Nov 26, 1977, 4:23 AM GMT-11 (15:23 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.0 99 km NE 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), light
- Local time
- UTC
- 1977-11-26 15:23:50 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 15.332° S, 173.570° 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
- 22
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.4127 km ENE of Hihifo, Tonga · 17814 days ago · 113 km deep · 90 km away
- 5.099 km NE of Hihifo, Tonga · 17814 days ago · 33 km deep · 46 km away
- 5.174 km NNE of Hihifo, Tonga · 17775 days ago · 33 km deep · 9 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000rt0. Read Tue, Sep 22, 2026, 4:57 AM UTC.