M4.9 earthquake 228 km SSW of ‘Ohonua, Tonga

A magnitude 4.9 earthquake struck 228 km SSW of ‘Ohonua, Tonga on Sun, Nov 28, 1982, 6:02 AM GMT+13 (17:02 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.3 Tonga region. This one was a foreshock.

Map

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

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.9 and up: 37 in the 60 days after this one and 3 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event usp0001r53. Read Tue, Sep 22, 2026, 5:16 PM UTC.