Chile earthquakes

M4.1 earthquake 69 km WNW of La Ligua, Chile

A magnitude 4.1 earthquake struck 69 km WNW of La Ligua, Chile on Sat, Oct 6, 2012, 7:49 PM GMT-3 (22:49 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M5.0 61 km WSW of Illapel, Chile. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
4.1 (Mwr, regional moment), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2012-10-06 22:49:38 UTC
Depth
7.2 km (4.5 mi), shallow
Epicenter
32.127° S, 71.860° W
Region
Chile
Tsunami flag
No
Status
Reviewed by a seismologist

What happened

The USGS’s account of the effects of this earthquake.

no people dead or missing; no people injured; no buildings damaged or destroyed

From the USGS event page for usp000jtnp. U.S. Geological Survey text and figures are in the public domain.

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
Reverse (thrust)
Nodal plane 1
Strike 352°, dip 57°, rake 93°
Nodal plane 2
Strike 167°, dip 33°, rake 86°

How well it is located

Reviewed by a seismologist.

Station coverage gap
117°
Stations used
31

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 13 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 4.152 km WNW of La Ligua, Chile · 5110 days ago · 11 km deep · 22 km away
  2. 5.061 km WSW of Illapel, Chile · 5102 days ago · 24 km deep · 35 km away · felt by 6
  3. 4.584 km WSW of Illapel, Chile · 5100 days ago · 29 km deep · 37 km away
  4. 4.082 km WSW of Illapel, Chile · 5099 days ago · 43 km deep · 40 km away
  5. 4.575 km W of Illapel, Chile · 5098 days ago · 10 km deep · 42 km away
  6. 4.388 km WNW of La Ligua, Chile · 5098 days ago · 22 km deep · 30 km away
  7. 4.7Off the coast of Coquimbo, Chile · 5094 days ago · 44 km deep · 52 km away
  8. 4.268 km W of Illapel, Chile · 5082 days ago · 43 km deep · 44 km away
  9. 4.666 km WSW of Illapel, Chile · 5082 days ago · 36 km deep · 40 km away
  10. 4.311 km NW of Hacienda La Calera, Chile · 5079 days ago · 46 km deep · 83 km away · felt by 8
  11. 4.544 km NNW of Valparaíso, Chile · 5071 days ago · 23 km deep · 60 km away · felt by 11
  12. 4.135 km N of Valparaíso, Chile · 5062 days ago · 21 km deep · 68 km away · felt by 9
  13. 4.637 km NNW of Valparaíso, Chile · 5052 days ago · 38 km deep · 66 km away

Before

  1. 4.689 km WNW of La Ligua, Chile · 5112 days ago · 9 km deep · 23 km away · felt by 8

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp000jtnp. Read Sun, Oct 4, 2026, 8:26 PM UTC.