Tonga earthquakes

M4.9 earthquake 92 km NNW of Hihifo, Tonga

A magnitude 4.9 earthquake struck 92 km NNW of Hihifo, Tonga on Sat, Jul 31, 1976, 4:11 PM GMT-11 (03:11 UTC), 41 km (25 mi) below the surface.

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The earthquake

Magnitude
4.9 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1976-08-01 03:11:34 UTC
Depth
41.0 km (25.5 mi), shallow
Epicenter
15.155° S, 174.059° 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
13

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 3 in the 30 days before it.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0000hp0. Read Fri, Oct 2, 2026, 2:39 AM UTC.