Chile earthquakes

M4.3 earthquake 74 km NNW of Constitución, Chile

A magnitude 4.3 earthquake struck 74 km NNW of Constitución, Chile on Thu, Mar 8, 2012, 9:43 PM GMT-3 (00:43 UTC), 39 km (24 mi) below the surface.

A larger quake followed: M7.1 23 km NE of Constitución, Chile. This one was a foreshock.

Constitución 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
4.3 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2012-03-09 00:43:36 UTC
Depth
38.8 km (24.1 mi), shallow
Epicenter
34.730° S, 72.781° W
Region
Chile
Tsunami flag
No
Status
Reviewed by a seismologist

What happened

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

Felt (II) at Constitucion, Pencahue and Talca.

From the USGS event page for usp000jfz3. 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
116°
Stations used
33

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 15 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 4.044 km WSW of Santa Cruz, Chile · 5309 days ago · 44 km deep · 88 km away
  2. 7.123 km NE of Constitución, Chile · 5303 days ago · 41 km deep · 73 km away · felt by 1,122
  3. 4.636 km NW of Constitución, Chile · 5303 days ago · 44 km deep · 41 km away
  4. 4.447 km NE of Constitución, Chile · 5303 days ago · 35 km deep · 69 km away
  5. 4.124 km NNW of Constitución, Chile · 5302 days ago · 13 km deep · 52 km away
  6. 4.7Near the coast of Maule, Chile · 5300 days ago · 16 km deep · 92 km away
  7. 4.122 km N of Constitución, Chile · 5300 days ago · 17 km deep · 53 km away
  8. 4.525 km NE of Constitución, Chile · 5298 days ago · 38 km deep · 75 km away
  9. 4.430 km ENE of Constitución, Chile · 5297 days ago · 43 km deep · 87 km away
  10. 5.0110 km WSW of San Antonio, Chile · 5295 days ago · 32 km deep · 98 km away · felt by 8
  11. 4.148 km SW of Constitución, Chile · 5291 days ago · 13 km deep · 97 km away
  12. 4.738 km ENE of Constitución, Chile · 5284 days ago · 40 km deep · 88 km away
  13. 4.181 km WSW of San Antonio, Chile · 5280 days ago · 11 km deep · 91 km away
  14. 4.740 km NNW of Talca, Chile · 5270 days ago · 43 km deep · 91 km away · felt by 14
  15. 4.733 km WSW of Santa Cruz, Chile · 5270 days ago · 43 km deep · 97 km away · felt by 4

Before

  1. 4.635 km SW of Constitución, Chile · 5325 days ago · 28 km deep · 89 km away
  2. 4.042 km WSW of Santa Cruz, Chile · 5335 days ago · 47 km deep · 89 km away
  3. 4.567 km W of Santa Cruz, Chile · 5340 days ago · 29 km deep · 66 km away · felt by 6
  4. 4.489 km NW of Constitución, Chile · 5342 days ago · 10 km deep · 18 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp000jfz3. Read Thu, Oct 1, 2026, 2:08 PM UTC.