Tonga earthquakes

M5.1 earthquake 165 km ENE of Neiafu, Tonga

A magnitude 5.1 earthquake struck 165 km ENE of Neiafu, Tonga on Thu, Sep 19, 2019, 10:19 PM GMT-11 (09:19 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.5 176 km NE of Neiafu, Tonga. This one was a foreshock.

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The earthquake

Magnitude: 5.1 (mb), moderate
Local time: Thu, Sep 19, 2019, 10:19 PM GMT-11
UTC: 2019-09-20 09:19:12 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 18.311° S, 172.462° 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 14.0 km horizontally, 1.8 km in depth
Magnitude uncertainty: ±0.03
Depth from: Operator assigned
Station coverage gap: 51°
Stations used: 70

Nearby

Within 100 km, magnitude 2.1 and up: 34 in the 60 days after this one and 6 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 us60005l9u (also filed as iscgem617430113). Read Wed, Sep 30, 2026, 5:35 PM UTC.