Tonga earthquakes

M4.5 earthquake 60 km N of Pangai, Tonga

A magnitude 4.5 earthquake struck 60 km N of Pangai, Tonga on Sun, Jan 11, 1987, 3:51 PM GMT+13 (02:51 UTC), 117 km (73 mi) below the surface.

A larger quake followed: M5.1 20 km SSW of Neiafu, 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
4.5 (mb), light
Local time
UTC
1987-01-11 02:51:24 UTC
Depth
116.8 km (72.6 mi), intermediate-depth
Epicenter
19.265° S, 174.347° 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 1.5 and up: 1 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 usp00031kb. Read Thu, Oct 1, 2026, 1:47 AM UTC.