M4.9 earthquake 164 km WNW of Pangai, Tonga
A magnitude 4.9 earthquake struck 164 km WNW of Pangai, Tonga on Sat, Oct 18, 1975, 5:12 AM GMT+13 (16:12 UTC), 267 km (166 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (mb), light
- Local time
- UTC
- 1975-10-17 16:12:30 UTC
- Depth
- 267.0 km (165.9 mi), intermediate-depth
- Epicenter
- 19.097° S, 175.721° 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
- 40
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000d5v. Read Tue, Sep 22, 2026, 8:06 AM UTC.