Chile earthquakes

M4.4 earthquake 53 km WSW of Illapel, Chile

A magnitude 4.4 earthquake struck 53 km WSW of Illapel, Chile on Sun, Dec 27, 2015, 8:47 PM GMT-3 (23:47 UTC), 38 km (23 mi) below the surface.

A larger quake followed: M5.0 65 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
4.4 (mwr), light
Local time
UTC
2015-12-27 23:47:10 UTC
Depth
37.7 km (23.4 mi), shallow
Epicenter
31.769° S, 71.714° 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.

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
4.4 Mwr
Nodal plane 1
Strike 350°, dip 24°, rake 91°
Nodal plane 2
Strike 169°, dip 66°, rake 90°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 5.4 km horizontally, 6.6 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
180°
Stations used
47

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 22 in the 60 days after this one and 21 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10004a0b. Read Wed, Sep 23, 2026, 12:52 AM UTC.