Tonga earthquakes

M4.6 earthquake 218 km ENE of Neiafu, Tonga

A magnitude 4.6 earthquake struck 218 km ENE of Neiafu, Tonga on Tue, Sep 17, 2019, 2:42 PM GMT-11 (01:42 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
4.6 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2019-09-18 01:42:20 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
17.950° S, 172.048° 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 6.6 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.13
Depth from
Operator assigned
Station coverage gap
104°
Stations used
19

Nearby

Within 100 km, magnitude 1.6 and up: 33 in the 60 days after this one and 1 in the 30 days before it.

After

Before

Earthquakes todayTonga earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70005lqd. Read Fri, Oct 2, 2026, 3:55 PM UTC.