Chile earthquakes

M4.7 earthquake 87 km W of Illapel, Chile

A magnitude 4.7 earthquake struck 87 km W of Illapel, Chile on Fri, Sep 18, 2015, 4:39 PM GMT-3 (19:39 UTC), 6 km (3 mi) below the surface.

A larger quake followed: M5.1 93 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
4.7 (mwr), light
Local time
UTC
2015-09-18 19:39:21 UTC
Depth
5.6 km (3.5 mi), shallow
Epicenter
31.642° S, 72.089° 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.

Fault motion and ground failure

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Faulting
Reverse (thrust)
Moment magnitude
4.7 Mwr
Nodal plane 1
Strike 172°, dip 84°, rake 86°
Nodal plane 2
Strike 26°, dip 8°, rake 124°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 4.4 km horizontally, 3.8 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
74°
Stations used
84

Nearest places

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

Nearby

Within 100 km, magnitude 1.7 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 us20003lhk. Read Wed, Sep 23, 2026, 3:30 AM UTC.