Chile earthquakes

M4.1 earthquake 46 km NNW of Valparaíso, Chile

A magnitude 4.1 earthquake struck 46 km NNW of Valparaíso, Chile on Sat, Apr 28, 2012, 5:46 PM GMT-3 (20:46 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M4.6 41 km NNW of Valparaíso, 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 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2012-04-28 20:46:48 UTC
Depth
5.3 km (3.3 mi), shallow
Epicenter
32.653° S, 71.829° W
Region
Chile
Tsunami flag
No
Status
Reviewed by a seismologist

What happened

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

Felt (III) at Puchuncavi, Valparaiso, Villa Alemana, Vina del Mar and Zapallar.

From the USGS event page for usp000jjr2. 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.

How well it is located

Reviewed by a seismologist.

Station coverage gap
148°
Stations used
27

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 4.327 km WNW of Valparaíso, Chile · 5258 days ago · 13 km deep · 28 km away
  2. 3.734 km N of Valparaíso, Chile · 5252 days ago · 45 km deep · 16 km away
  3. 4.641 km NNW of Valparaíso, Chile · 5252 days ago · 29 km deep · 5 km away · felt by 7
  4. 4.349 km WNW of La Ligua, Chile · 5247 days ago · 31 km deep · 47 km away

Before

  1. 4.150 km W of La Ligua, Chile · 5280 days ago · 31 km deep · 24 km away
  2. 3.838 km WSW of La Ligua, Chile · 5281 days ago · 25 km deep · 23 km away
  3. 4.916 km SW of La Ligua, Chile · 5282 days ago · 40 km deep · 45 km away · felt by 22
  4. 6.722 km NW of Hacienda La Calera, Chile · 5282 days ago · 29 km deep · 44 km away
  5. 4.467 km W of La Ligua, Chile · 5284 days ago · 27 km deep · 32 km away
  6. 4.933 km SSW of Illapel, Chile · 5298 days ago · 65 km deep · 96 km away · felt by 13

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp000jjr2. Read Sat, Oct 3, 2026, 7:36 AM UTC.