Chile earthquakes

M4.6 earthquake 74 km NW of Illapel, Chile

A magnitude 4.6 earthquake struck 74 km NW of Illapel, Chile on Sun, Sep 27, 2015, 7:39 PM GMT-3 (22:39 UTC), 24 km (15 mi) below the surface.

A larger quake followed: M4.8 109 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
4.6 (mwr), light
Local time
UTC
2015-09-27 22:39:58 UTC
Depth
23.6 km (14.7 mi), shallow
Epicenter
31.215° S, 71.789° 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
4.6 Mwr
Nodal plane 1
Strike 353°, dip 21°, rake 88°
Nodal plane 2
Strike 175°, dip 69°, rake 91°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 4.0 km horizontally, 4.3 km in depth
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
84°
Stations used
58

Nearest places

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

Nearby

Within 100 km, magnitude 1.6 and up: 199 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 199.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20003pk8. Read Mon, Sep 21, 2026, 9:24 PM UTC.