Chile earthquakes

M5.1 earthquake 109 km W of Illapel, Chile

A magnitude 5.1 earthquake struck 109 km W of Illapel, Chile on Thu, Sep 17, 2015, 8:55 PM GMT-3 (23:55 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M6.2 79 km W of La Ligua, 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
5.1 (mwr), moderate
Local time
UTC
2015-09-17 23:55:00 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
31.829° S, 72.302° W
Region
Chile
Felt reports
1
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

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
4.8 Mwr
Nodal plane 1
Strike 357°, dip 53°, rake 86°
Nodal plane 2
Strike 184°, dip 38°, rake 95°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 5.4 km horizontally, 1.8 km in depth
Depth from
Operator assigned
Station coverage gap
75°
Stations used
130

Nearest places

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

Nearby

Within 100 km, magnitude 2.1 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 us20003l0y. Read Tue, Sep 22, 2026, 11:09 AM UTC.