M4.5 earthquake 81 km S of Pangai, Tonga
A magnitude 4.5 earthquake struck 81 km S of Pangai, Tonga on Sat, Jul 27, 1974, 9:09 AM GMT+13 (20:09 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
- 4.5 (mb), light
- Local time
- UTC
- 1974-07-26 20:09:43 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 20.550° S, 174.359° 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
- 10
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 0 in the 60 days after this one and 3 in the 30 days before it.
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00007au. Read Wed, Sep 30, 2026, 6:21 AM UTC.