Chile earthquakes

M5.8 earthquake 18 km WSW of Valparaíso, Chile

A magnitude 5.8 earthquake struck 18 km WSW of Valparaíso, Chile on Fri, Apr 28, 2017, 1:05 PM GMT-3 (16:05 UTC), 27 km (17 mi) below the surface.

Valparaíso 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: 5.8 (mww), moderate
Local time: Fri, Apr 28, 2017, 1:05 PM GMT-3
UTC: 2017-04-28 16:05:57 UTC
Depth: 27.0 km (16.8 mi), shallow
Epicenter: 33.130° S, 71.800° W
Region: Chile
Felt reports: 52
Strongest shaking: VI, strong 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: VI, strong shaking
Peak ground acceleration: 16.0% of gravity
Peak ground velocity: 2.1 cm/s
Map: Automatic

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

Did you feel it?

52 people reported to the USGS what they felt; the strongest reported shaking was VIII, severe 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

Deaths: estimated chance of each range
Range	Chance
Under 1	65%
1 to 10	30%
10 to 100	4%
100 to 1,000	Under 1%
1,000 to 10,000	Under 1%
10,000 to 100,000	Under 1%
100,000 to 10,000,000	Under 1%

Economic losses: estimated chance of each range
Range, million USD	Chance
Under 1	68%
1 to 10	30%
10 to 100	2%
100 to 1,000	Under 1%
1,000 to 10,000	Under 1%
10,000 to 100,000	Under 1%
100,000 to 10,000,000	Under 1%

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: 5.8 Mww
Nodal plane 1: Strike 338°, dip 13°, rake 77°
Nodal plane 2: Strike 171°, dip 77°, rake 93°

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 1.6 km horizontally, 1.8 km in depth
Magnitude uncertainty: ±0.06
Depth from: From modeling of broad-band P waveforms
Station coverage gap: 59°
Stations used: 261

Nearest places

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

Nearby

Within 100 km, magnitude 2.8 and up: 36 in the 60 days after this one and 92 in the 30 days before it.

After

Before

Earthquakes today Chile earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10008lm3 (also filed as iscgem610639145). Read Wed, Sep 30, 2026, 3:58 AM UTC.