Tonga earthquakes

M4.8 earthquake 283 km WNW of Haveluloto, Tonga

A magnitude 4.8 earthquake struck 283 km WNW of Haveluloto, Tonga on Mon, Feb 18, 2019, 8:22 AM GMT+13 (19:22 UTC), 535 km (333 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: 4.8 (mb, body-wave), light
Magnitude from: USGS National Earthquake Information Center
Local time: Mon, Feb 18, 2019, 8:22 AM GMT+13
UTC: 2019-02-17 19:22:27 UTC
Depth: 535.1 km (332.5 mi), deep
Epicenter: 20.328° S, 177.792° 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
4.8	mb, body-wave	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.055 · 103 stations
5.42	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, 6.5 km in depth
Magnitude uncertainty: ±0.06
Depth from: From location
Station coverage gap: 117°
Stations used: 63

Nearest places

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

Nuku‘alofa, TongaPopulation 22,400. Forecast284 kmWNW

Nearby

Within 100 km, magnitude 1.8 and up: 18 in the 60 days after this one and 9 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 us2000jjav (also filed as iscgem618319932). Read Sat, Oct 3, 2026, 10:43 AM UTC.