Tonga earthquakes

M4.5 earthquake 67 km WSW of Hihifo, Tonga

A magnitude 4.5 earthquake struck 67 km WSW of Hihifo, Tonga on Fri, Aug 12, 2022, 3:21 PM GMT+13 (02:21 UTC), 170 km (105 mi) below the surface.

A larger quake followed: M4.9 73 km W 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
2022-08-12 02:21:25 UTC
Depth
169.7 km (105.4 mi), intermediate-depth
Epicenter
16.222° S, 174.360° 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 8.1 km horizontally, 4.8 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
115°
Stations used
32

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 5 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000ia38. Read Fri, Oct 2, 2026, 1:51 AM UTC.