Chile earthquakes

M5.5 earthquake 52 km W of Coquimbo, Chile

A magnitude 5.5 earthquake struck 52 km W of Coquimbo, Chile on Thu, Sep 17, 2015, 5:40 PM GMT-3 (20:40 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M5.9 43 km SSW of Coquimbo, Chile. This one was a foreshock.

Coquimbo forecast More in Chile

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 5.5 (mwr), moderate
Local time: Thu, Sep 17, 2015, 5:40 PM GMT-3
UTC: 2015-09-17 20:40:31 UTC
Depth: 5.7 km (3.5 mi), shallow
Epicenter: 29.961° S, 71.885° W
Region: Chile
Felt reports: 1
Strongest shaking: IV, light shaking
PAGER alert: Green
Tsunami flag: No
Status: Reviewed by a seismologist

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated: IV, light shaking
Map: Automatic

USGS ShakeMap: estimated shaking intensity around the epicenter — Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

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

Estimated impact

The USGS PAGER system estimates deaths and economic losses from the shaking and the population and buildings exposed to it.

Alert level: Green: little or no damage or loss of life expected

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 5.2 km horizontally, 1.5 km in depth
Depth from: From location
Station coverage gap: 63°
Stations used: 558

Nearest places

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

Nearby

Within 100 km, magnitude 2.5 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 us20003kwk (also filed as gcmt20150917204031, iscgem607744035). Read Wed, Sep 23, 2026, 5:04 AM UTC.