Chile earthquakes

M4.6 earthquake 95 km W of Illapel, Chile

A magnitude 4.6 earthquake struck 95 km W of Illapel, Chile on Fri, Sep 18, 2015, 4:25 PM GMT-3 (19:25 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.9 79 km WNW 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
2015-09-18 19:25:35 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
31.721° S, 72.173° 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 203°, dip 65°, rake 63°
Nodal plane 2
Strike 73°, dip 36°, rake 134°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 4.4 km horizontally, 1.8 km in depth
Magnitude uncertainty
±0.05
Depth from
Operator assigned
Station coverage gap
45°
Stations used
94

Nearest places

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

Nearby

Within 100 km, magnitude 1.6 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 us20003lhg. Read Tue, Sep 22, 2026, 6:04 AM UTC.