Tonga earthquakes

M4.2 earthquake 253 km W of Haveluloto, Tonga

A magnitude 4.2 earthquake struck 253 km W of Haveluloto, Tonga on Wed, Oct 7, 2020, 3:55 PM GMT+13 (02:55 UTC), 398 km (247 mi) below the surface.

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

Nuku‘alofa forecastMore in Tonga

Map

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

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The earthquake

Magnitude
4.2 (mb), light
Local time
UTC
2020-10-07 02:55:28 UTC
Depth
397.6 km (247.0 mi), deep
Epicenter
20.904° S, 177.640° 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.

Location uncertainty
About 14.0 km horizontally, 10.2 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
103°
Stations used
27

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 17 in the 60 days after this one and 8 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000c7sa. Read Tue, Sep 29, 2026, 5:41 PM UTC.