Chile earthquakes

M4.0 earthquake 86 km WNW of Illapel, Chile

A magnitude 4.0 earthquake struck 86 km WNW of Illapel, Chile on Sun, Sep 20, 2015, 12:49 PM GMT-3 (15:49 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M4.7 71 km W of Illapel, 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
4.0 (mb), light
Local time
UTC
2015-09-20 15:49:13 UTC
Depth
16.0 km (9.9 mi), shallow
Epicenter
31.331° S, 72.010° 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 4.3 km horizontally, 5.8 km in depth
Magnitude uncertainty
±0.30
Depth from
From location
Station coverage gap
190°, poorly surrounded by stations
Stations used
30

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 200 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 200.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10003kf8. Read Tue, Sep 22, 2026, 2:55 PM UTC.