Tonga earthquakes

M4.3 earthquake 90 km WNW of Hihifo, Tonga

A magnitude 4.3 earthquake struck 90 km WNW of Hihifo, Tonga on Mon, May 22, 2023, 3:11 AM GMT+13 (14:11 UTC), 192 km (119 mi) below the surface.

A larger quake followed: M4.8 103 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
4.3 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-05-21 14:11:58 UTC
Depth
191.7 km (119.1 mi), intermediate-depth
Epicenter
15.555° S, 174.529° 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 6.3 km horizontally, 5.8 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
54°
Stations used
40

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 19 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000kdmg. Read Fri, Oct 2, 2026, 11:51 AM UTC.