Tonga earthquakes

M5.5 earthquake 299 km SSW of ‘Ohonua, Tonga

A magnitude 5.5 earthquake struck 299 km SSW of ‘Ohonua, Tonga on Mon, Nov 22, 1982, 6:32 PM GMT+13 (05:32 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.7 252 km SSW of ‘Ohonua, Tonga. This one was a foreshock.

Nuku‘alofa forecast More in Tonga

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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: 5.5 (mb), moderate
Local time: Mon, Nov 22, 1982, 6:32 PM GMT+13
UTC: 1982-11-22 05:32:45 UTC
Depth: 33.0 km (20.5 mi), shallow
Epicenter: 23.913° S, 175.821° 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

Nearest places

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

Nuku‘alofa, TongaPopulation 22,400. Forecast315 kmSSW

Nearby

Within 100 km, magnitude 2.5 and up: 72 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 72.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0001r21 (also filed as gcmtb112282b, gcmt19821122053251, iscgem589408). Read Mon, Sep 21, 2026, 5:46 PM UTC.