Tonga earthquakes

M4.5 earthquake 142 km NNW of Hihifo, Tonga

A magnitude 4.5 earthquake struck 142 km NNW of Hihifo, Tonga on Thu, Aug 6, 2020, 3:11 AM GMT+13 (14:11 UTC), 268 km (166 mi) below the surface.

A larger quake followed: M5.6 79 km NNW of Hihifo, 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
2020-08-05 14:11:51 UTC
Depth
267.8 km (166.4 mi), intermediate-depth
Epicenter
14.876° S, 174.523° 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 10.6 km horizontally, 8.0 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
64°
Stations used
36

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 6 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000bcpy. Read Thu, Oct 1, 2026, 3:24 AM UTC.