Tonga earthquakes

M4.9 earthquake 112 km W of Hihifo, Tonga

A magnitude 4.9 earthquake struck 112 km W of Hihifo, Tonga on Fri, Apr 18, 2025, 2:26 AM GMT-12 (14:26 UTC), 293 km (182 mi) below the surface.

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The earthquake

Magnitude: 4.9 (mb, body-wave), light
Magnitude from: USGS National Earthquake Information Center
Local time: Fri, Apr 18, 2025, 2:26 AM GMT-12
UTC: 2025-04-18 14:26:55 UTC
Depth: 292.7 km (181.9 mi), intermediate-depth
Epicenter: 16.020° S, 174.845° 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
4.9	mb, body-wave	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.025 · 504 stations
5.3	Mww, W-phase moment	USGS, automatic first solution	First automatic solution · Preliminary

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: ±0.03
Depth from: From location
Station coverage gap: 52°
Stations used: 100

Nearby

Within 100 km, magnitude 1.9 and up: 7 in the 60 days after this one and 3 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 us6000q70z (also filed as usauto6000q70z). Read Sun, Oct 4, 2026, 4:31 PM UTC.