Tonga earthquakes

M4.9 earthquake 192 km WSW of Haveluloto, Tonga

A magnitude 4.9 earthquake struck 192 km WSW of Haveluloto, Tonga on Wed, May 19, 1982, 12:14 PM GMT+13 (23:14 UTC), 201 km (125 mi) below the surface.

A larger quake followed: M5.0 199 km SSW of Vaini, Tonga. This one was a foreshock.

Nuku‘alofa forecastMore 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
4.9 (mb), light
Local time
UTC
1982-05-18 23:14:12 UTC
Depth
201.4 km (125.1 mi), intermediate-depth
Epicenter
22.018° S, 176.826° 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
FROM_LOCATION

Nearest places

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

Nearby

Within 100 km, magnitude 1.9 and up: 3 in the 60 days after this one and 1 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0001mdj. Read Tue, Sep 22, 2026, 6:31 AM UTC.