Tonga earthquakes

M4.6 earthquake 143 km NNW of Neiafu, Tonga

A magnitude 4.6 earthquake struck 143 km NNW of Neiafu, Tonga on Tue, Apr 26, 2016, 11:54 AM GMT-12 (23:54 UTC), 103 km (64 mi) below the surface.

A larger quake followed: M5.2 105 km SSE of Hihifo, Tonga. This one was a foreshock.

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The earthquake

Magnitude: 4.6 (mb, body-wave), light
Magnitude from: USGS National Earthquake Information Center
Local time: Tue, Apr 26, 2016, 11:54 AM GMT-12
UTC: 2016-04-26 23:54:26 UTC
Depth: 103.2 km (64.1 mi), intermediate-depth
Epicenter: 17.386° S, 174.262° 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
4.6	mb, body-wave	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.046 · 141 stations
5.11	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 10.0 km horizontally, 5.6 km in depth
Magnitude uncertainty: ±0.05
Depth from: From location
Station coverage gap: 52°
Stations used: 74

Nearby

Within 100 km, magnitude 1.6 and up: 10 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 us10005bt6 (also filed as iscgem608600834). Read Sun, Oct 4, 2026, 8:07 PM UTC.