Chile earthquakes

M3.9 earthquake 42 km WSW of Iquique, Chile

A magnitude 3.9 earthquake struck 42 km WSW of Iquique, Chile on Thu, Apr 3, 2014, 8:01 PM GMT-3 (23:01 UTC), 25 km (16 mi) below the surface.

A larger quake followed: M4.8 74 km SW 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
2014-04-03 23:01:44 UTC
Depth
25.0 km (15.5 mi), shallow
Epicenter
20.308° S, 70.540° 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
Normal
Moment magnitude
3.9 Mwr
Nodal plane 1
Strike 338°, dip 85°, rake -98°
Nodal plane 2
Strike 218°, dip 10°, rake -31°

How well it is located

Reviewed by a seismologist.

Magnitude uncertainty
±0.06
Depth from
FROM_MODELING_OF_BROAD_BAND_P_WAVEFORMS
Station coverage gap
141°
Stations used
60

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 usc000p449. Read Tue, Sep 22, 2026, 11:33 PM UTC.