Chile earthquakes

M5.7 earthquake 21 km NNW of La Serena, Chile

A magnitude 5.7 earthquake struck 21 km NNW of La Serena, Chile on Sun, Aug 23, 2015, 8:10 PM GMT-3 (23:10 UTC), 31 km (19 mi) below the surface.

A larger quake followed: M6.1 79 km WNW of Coquimbo, Chile. This one was a foreshock.

La Serena 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: 5.7 (mww), moderate
Local time: Sun, Aug 23, 2015, 8:10 PM GMT-3
UTC: 2015-08-23 23:10:04 UTC
Depth: 31.1 km (19.3 mi), shallow
Epicenter: 29.719° S, 71.296° W
Region: Chile
Felt reports: 49
Strongest shaking: V, moderate 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: V, moderate shaking
Peak ground acceleration: 14.1% of gravity
Peak ground velocity: 1.5 cm/s
Map: Automatic

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

Did you feel it?

49 people reported to the USGS what they felt; the strongest reported shaking was IV, light 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

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: 5.7 Mww
Nodal plane 1: Strike 216°, dip 49°, rake 100°
Nodal plane 2: Strike 21°, dip 42°, rake 79°

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 4.5 km horizontally, 2.9 km in depth
Depth from: From location
Station coverage gap: 33°
Stations used: 257

Nearest places

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

Nearby

Within 100 km, magnitude 2.5 and up: 66 in the 60 days after this one and 2 in the 30 days before it.

After

The first 60 of 66.

Before

Earthquakes today Chile earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us100034du (also filed as gcmt20150823231003, iscgem607677064). Read Wed, Sep 23, 2026, 4:28 AM UTC.