Tonga earthquakes

M4.6 earthquake 230 km SW of Vaini, Tonga

A magnitude 4.6 earthquake struck 230 km SW of Vaini, Tonga on Fri, Jul 12, 1974, 8:11 AM GMT+13 (19:11 UTC), 222 km (138 mi) below the surface.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.6 (mb), light
Local time
UTC
1974-07-11 19:11:24 UTC
Depth
222.0 km (137.9 mi), intermediate-depth
Epicenter
22.883° S, 176.483° 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
20

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.6 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 usp000072p. Read Wed, Sep 30, 2026, 12:38 AM UTC.