Tonga earthquakes

M4.4 earthquake 113 km NW of Neiafu, Tonga

A magnitude 4.4 earthquake struck 113 km NW of Neiafu, Tonga on Sat, Apr 5, 1986, 9:44 AM GMT+13 (20:44 UTC), 210 km (130 mi) below the surface.

A larger quake followed: M4.8 64 km WSW 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
4.4 (mb), light
Local time
UTC
1986-04-04 20:44:57 UTC
Depth
210.0 km (130.5 mi), intermediate-depth
Epicenter
17.996° S, 174.806° 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.

Nearby

Within 100 km, magnitude 1.5 and up: 4 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 usp0002snw. Read Tue, Sep 22, 2026, 3:34 PM UTC.