Chile earthquakes

M4.2 earthquake 173 km W of Illapel, Chile

A magnitude 4.2 earthquake struck 173 km W of Illapel, Chile on Fri, Sep 18, 2015, 7:08 PM GMT-3 (22:08 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M4.4 139 km WSW of Ovalle, Chile. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.2 (mb), light
Local time
UTC
2015-09-18 22:08:47 UTC
Depth
8.2 km (5.1 mi), shallow
Epicenter
31.410° S, 72.974° W
Region
Chile
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 6.9 km horizontally, 5.4 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
151°
Stations used
39

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 113 in the 60 days after this one and 86 in the 30 days before it.

After

The first 60 of 113.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20003lll. Read Wed, Sep 23, 2026, 10:20 PM UTC.