Tonga earthquakes

M4.4 earthquake 139 km NW of Neiafu, Tonga

A magnitude 4.4 earthquake struck 139 km NW of Neiafu, Tonga on Thu, May 28, 2020, 1:48 AM GMT+13 (12:48 UTC), 230 km (143 mi) below the surface.

A larger quake followed: M4.9 150 km NW 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
4.4 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2020-05-27 12:48:42 UTC
Depth
229.8 km (142.8 mi), intermediate-depth
Epicenter
17.893° S, 175.043° 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 10.8 km horizontally, 8.2 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
76°
Stations used
34

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 2 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000a01r. Read Thu, Oct 1, 2026, 2:36 AM UTC.