Tonga earthquakes

M5.1 earthquake 136 km E of Neiafu, Tonga

A magnitude 5.1 earthquake struck 136 km E of Neiafu, Tonga on Sun, Jun 4, 2017, 1:20 PM GMT+13 (00:20 UTC), 10 km (6 mi) below the surface.

Nuku‘alofa 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: 5.1 (mb, body-wave), moderate
Magnitude from: USGS National Earthquake Information Center
Local time: Sun, Jun 4, 2017, 1:20 PM GMT+13
UTC: 2017-06-04 00:20:53 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 18.710° S, 172.691° W
Region: Tonga
Tsunami flag: No
Status: Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
5.1	mb, body-wave	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.068 · 70 stations
5.04	Mw, moment	ISC-GEM global catalog	Final · ±0.1

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 8.4 km horizontally, 1.7 km in depth
Magnitude uncertainty: ±0.07
Depth from: Operator assigned
Station coverage gap: 68°
Stations used: 104

Nearest places

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

Nuku‘alofa, TongaPopulation 22,400. Forecast376 kmNE

Nearby

Within 100 km, magnitude 2.1 and up: 5 in the 60 days after this one and 1 in the 30 days before it.

After

Before

5.0119 km ESE of Neiafu, TongaSun, May 7, 9:08 PM GMT+13 · 3438 days ago · 10 km deep · 27 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20009kjz (also filed as iscgem610672770). Read Mon, Oct 5, 2026, 12:07 PM UTC.