Tonga earthquakes

M5.0 earthquake 85 km N of Hihifo, Tonga

A magnitude 5.0 earthquake struck 85 km N of Hihifo, Tonga on Sun, Jul 25, 2021, 5:01 PM GMT+13 (04:01 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.2 79 km NW of Hihifo, Tonga. This one was a foreshock.

Apia forecast More in Tonga

Map

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

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The earthquake

Magnitude: 5.0 (mb), moderate
Local time: Sun, Jul 25, 2021, 5:01 PM GMT+13
UTC: 2021-07-25 04:01:41 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 15.181° S, 173.827° 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 12.0 km horizontally, 1.6 km in depth
Magnitude uncertainty: ±0.08
Depth from: Operator assigned
Station coverage gap: 64°
Stations used: 40

Nearest places

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

Apia, SamoaPopulation 40,407. Forecast268 kmSW

Nearby

Within 100 km, magnitude 2.0 and up: 17 in the 60 days after this one and 8 in the 30 days before it.

After

Before

Earthquakes today Tonga earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000f0lg (also filed as iscgem620973744). Read Wed, Sep 30, 2026, 10:32 AM UTC.