Tonga earthquakes

M4.5 earthquake 158 km W of Neiafu, Tonga

A magnitude 4.5 earthquake struck 158 km W of Neiafu, Tonga on Sat, Mar 28, 2020, 11:08 AM GMT+13 (22:08 UTC), 267 km (166 mi) below the surface.

A larger quake followed: M4.9 151 km W of Neiafu, Tonga. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
4.5 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2020-03-27 22:08:02 UTC
Depth
266.6 km (165.7 mi), intermediate-depth
Epicenter
18.687° S, 175.481° 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 7.4 km horizontally, 6.7 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
78°
Stations used
43

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 1 in the 30 days before it.

After

Before

Earthquakes todayTonga earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70008kaf. Read Fri, Oct 2, 2026, 8:15 AM UTC.