Chile earthquakes

M3.8 earthquake 63 km WSW of Coquimbo, Chile

A magnitude 3.8 earthquake struck 63 km WSW of Coquimbo, Chile on Fri, Sep 18, 2015, 9:50 AM GMT-3 (12:50 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M4.3 82 km W of Ovalle, 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
3.8 (mwr), minor
Local time
UTC
2015-09-18 12:50:32 UTC
Depth
13.0 km (8.1 mi), shallow
Epicenter
30.097° S, 71.975° 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
Oblique reverse
Moment magnitude
3.8 Mwr
Nodal plane 1
Strike 157°, dip 72°, rake 59°
Nodal plane 2
Strike 40°, dip 36°, rake 147°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 7.0 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.06
Depth from
From moment tensor inversion
Station coverage gap
150°
Stations used
22

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 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 us10003jjp. Read Tue, Sep 22, 2026, 7:23 AM UTC.