Tonga earthquakes

M4.3 earthquake 288 km NW of Haveluloto, Tonga

A magnitude 4.3 earthquake struck 288 km NW of Haveluloto, Tonga on Tue, Sep 26, 2017, 11:00 AM GMT+13 (22:00 UTC), 546 km (339 mi) below the surface.

A larger quake followed: M4.4 246 km WNW of Pangai, Tonga. This one was a foreshock.

Nuku‘alofa forecast More in Tonga

Map

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

Open the live map with earthquakes

The earthquake

Magnitude: 4.3 (mb), light
Local time: Tue, Sep 26, 2017, 11:00 AM GMT+13
UTC: 2017-09-25 22:00:02 UTC
Depth: 545.7 km (339.1 mi), deep
Epicenter: 19.640° S, 177.466° 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 15.4 km horizontally, 8.3 km in depth
Magnitude uncertainty: ±0.10
Depth from: From location
Station coverage gap: 96°
Stations used: 59

Nearest places

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

Nuku‘alofa, TongaPopulation 22,400. Forecast289 kmNW

Nearby

Within 100 km, magnitude 1.5 and up: 16 in the 60 days after this one and 7 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 us2000b0hh. Read Wed, Sep 30, 2026, 1:05 PM UTC.