M4.8 earthquake 85 km WSW of Pangai, Tonga
A magnitude 4.8 earthquake struck 85 km WSW of Pangai, Tonga on Sat, Feb 2, 1974, 12:48 AM GMT+13 (11:48 UTC), 111 km (69 mi) below the surface.
A larger quake followed: M5.4 46 km N of Nuku‘alofa, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.8 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1974-02-01 11:48:33 UTC
- Depth
- 111.0 km (69.0 mi), intermediate-depth
- Epicenter
- 20.161° S, 175.086° 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
- CONSTRAINED_BY_DEPTH_PHASES
- Stations used
- 25
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 2 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000054c. Read Sat, Oct 3, 2026, 5:39 PM UTC.