Chile earthquakes

M3.9 earthquake 88 km W of Iquique, Chile

A magnitude 3.9 earthquake struck 88 km W of Iquique, Chile on Wed, Jul 19, 2017, 6:46 PM GMT-4 (22:46 UTC), 9 km (6 mi) below the surface.

A larger quake followed: M5.2 93 km WNW of Iquique, Chile. This one was a foreshock.

Iquique forecastMore in Chile

Map

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

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The earthquake

Magnitude
3.9 (mwr), minor
Local time
UTC
2017-07-19 22:46:23 UTC
Depth
8.9 km (5.5 mi), shallow
Epicenter
20.110° S, 70.987° 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
3.9 Mwr
Nodal plane 1
Strike 326°, dip 27°, rake 81°
Nodal plane 2
Strike 156°, dip 64°, rake 94°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 5.7 km horizontally, 6.4 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
203°, poorly surrounded by stations
Stations used
19

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 0 in the 30 days before it.

After

Earthquakes todayChile earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000a0t0. Read Wed, Sep 30, 2026, 11:49 PM UTC.