Chile earthquakes

M4.2 earthquake 131 km NW of Vallenar, Chile

A magnitude 4.2 earthquake struck 131 km NW of Vallenar, Chile on Wed, Feb 11, 2015, 6:50 AM GMT-3 (09:50 UTC), 28 km (17 mi) below the surface.

A larger quake followed: M5.2 84 km NNW of Vallenar, Chile. This one was a foreshock.

Caldera 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
4.2 (Mwr, regional moment), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2015-02-11 09:50:41 UTC
Depth
27.6 km (17.2 mi), shallow
Epicenter
27.710° S, 71.673° 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
4.2 Mwr
Nodal plane 1
Strike 154°, dip 34°, rake 67°
Nodal plane 2
Strike 1°, dip 59°, rake 105°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 5.9 km horizontally, 8.6 km in depth
Magnitude uncertainty
±0.05
Depth from
FROM_LOCATION
Station coverage gap
166°
Stations used
29

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 4.4108 km NW of Vallenar, Chile · 4237 days ago · 49 km deep · 25 km away · felt by 5
  2. 4.4107 km W of Copiapó, Chile · 4234 days ago · 10 km deep · 56 km away
  3. 4.9120 km W of Copiapó, Chile · 4232 days ago · 11 km deep · 51 km away · felt by 1
  4. 4.1109 km W of Copiapó, Chile · 4232 days ago · 10 km deep · 57 km away
  5. 4.0108 km W of Copiapó, Chile · 4231 days ago · 10 km deep · 60 km away
  6. 5.284 km NNW of Vallenar, Chile · 4231 days ago · 34 km deep · 62 km away · felt by 5
  7. 4.677 km SW of Copiapó, Chile · 4219 days ago · 47 km deep · 79 km away · felt by 2
  8. 4.6118 km W of Copiapó, Chile · 4211 days ago · 17 km deep · 24 km away

Before

  1. 4.558 km NW of Vallenar, Chile · 4251 days ago · 35 km deep · 73 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usc000tnye. Read Thu, Oct 1, 2026, 6:31 AM UTC.