Chile earthquakes

M4.1 earthquake 91 km W of Illapel, Chile

A magnitude 4.1 earthquake struck 91 km W of Illapel, Chile on Wed, Sep 23, 2015, 7:39 PM GMT-3 (22:39 UTC), 9 km (6 mi) below the surface.

A larger quake followed: M4.2 105 km W 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), light
Local time
UTC
2015-09-23 22:39:22 UTC
Depth
9.4 km (5.9 mi), shallow
Epicenter
31.797° S, 72.118° W
Region
Chile
Felt reports
1
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

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
4.1 Mwr
Nodal plane 1
Strike 6°, dip 37°, rake 95°
Nodal plane 2
Strike 180°, dip 53°, rake 86°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 5.3 km horizontally, 2.5 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
150°
Stations used
52

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 114 in the 60 days after this one and 85 in the 30 days before it.

After

  1. 4.082 km W of Illapel, Chile · 4016 days ago · 16 km deep · 10 km away
  2. 4.2105 km W of Illapel, Chile · 4016 days ago · 10 km deep · 14 km away
  3. 4.4100 km WSW of Illapel, Chile · 4016 days ago · 10 km deep · 10 km away
  4. 4.496 km WSW of Illapel, Chile · 4016 days ago · 10 km deep · 5 km away
  5. 4.3100 km WSW of Illapel, Chile · 4016 days ago · 10 km deep · 9 km away
  6. 4.744 km W of Illapel, Chile · 4016 days ago · 35 km deep · 49 km away
  7. 4.7Off the coast of Valparaiso, Chile · 4016 days ago · 10 km deep · 54 km away
  8. 4.590 km W of Illapel, Chile · 4016 days ago · 7 km deep · 12 km away
  9. 4.498 km W of La Ligua, Chile · 4015 days ago · 10 km deep · 58 km away · felt by 1
  10. 4.2104 km NW of Valparaíso, Chile · 4015 days ago · 14 km deep · 60 km away
  11. 4.295 km W of La Ligua, Chile · 4015 days ago · 6 km deep · 57 km away
  12. 4.096 km W of Illapel, Chile · 4015 days ago · 10 km deep · 6 km away
  13. 4.479 km WNW of Illapel, Chile · 4015 days ago · 21 km deep · 58 km away
  14. 4.398 km W of Illapel, Chile · 4015 days ago · 10 km deep · 7 km away
  15. 4.052 km W of Illapel, Chile · 4015 days ago · 25 km deep · 43 km away
  16. 4.771 km W of Illapel, Chile · 4015 days ago · 12 km deep · 35 km away
  17. 4.291 km WSW of Illapel, Chile · 4014 days ago · 13 km deep · 3 km away
  18. 4.339 km NW of Illapel, Chile · 4014 days ago · 45 km deep · 75 km away
  19. 4.587 km WSW of Illapel, Chile · 4014 days ago · 24 km deep · 5 km away
  20. 4.277 km WSW of Illapel, Chile · 4014 days ago · 33 km deep · 17 km away
  21. 4.271 km W of Illapel, Chile · 4014 days ago · 20 km deep · 28 km away
  22. 4.1108 km WNW of Illapel, Chile · 4014 days ago · 10 km deep · 52 km away
  23. 3.976 km NW of Illapel, Chile · 4014 days ago · 29 km deep · 67 km away
  24. 4.373 km W of Illapel, Chile · 4013 days ago · 26 km deep · 22 km away
  25. 4.3172 km W of Illapel, Chile · 4013 days ago · 10 km deep · 82 km away
  26. 4.2163 km W of Illapel, Chile · 4013 days ago · 10 km deep · 73 km away
  27. 5.450 km W of Illapel, Chile · 4013 days ago · 37 km deep · 42 km away · felt by 6
  28. 4.674 km NW of Illapel, Chile · 4012 days ago · 24 km deep · 72 km away
  29. 4.084 km W of Illapel, Chile · 4012 days ago · 18 km deep · 12 km away
  30. 4.147 km NW of Illapel, Chile · 4012 days ago · 34 km deep · 70 km away
  31. 4.8109 km W of Illapel, Chile · 4012 days ago · 11 km deep · 19 km away
  32. 4.556 km W of Illapel, Chile · 4012 days ago · 14 km deep · 41 km away
  33. 4.360 km NW of Illapel, Chile · 4012 days ago · 34 km deep · 88 km away
  34. 4.434 km W of Illapel, Chile · 4012 days ago · 40 km deep · 61 km away
  35. 3.868 km SW of Ovalle, Chile · 4012 days ago · 30 km deep · 94 km away
  36. 4.365 km NW of Illapel, Chile · 4011 days ago · 33 km deep · 87 km away
  37. 3.583 km WSW of Illapel, Chile · 4011 days ago · 38 km deep · 14 km away
  38. 4.293 km WNW of Illapel, Chile · 4011 days ago · 10 km deep · 47 km away
  39. 4.484 km W of Illapel, Chile · 4011 days ago · 10 km deep · 30 km away
  40. 4.426 km SW of Illapel, Chile · 4011 days ago · 29 km deep · 70 km away
  41. 4.253 km WNW of Illapel, Chile · 4010 days ago · 24 km deep · 50 km away
  42. 4.2160 km W of Illapel, Chile · 4010 days ago · 10 km deep · 72 km away
  43. 4.489 km W of Illapel, Chile · 4010 days ago · 14 km deep · 4 km away
  44. 4.4104 km WSW of Illapel, Chile · 4009 days ago · 15 km deep · 16 km away
  45. 4.022 km SW of Illapel, Chile · 4009 days ago · 48 km deep · 72 km away
  46. 4.5155 km W of Illapel, Chile · 4008 days ago · 10 km deep · 76 km away
  47. 4.4157 km W of Illapel, Chile · 4008 days ago · 5 km deep · 66 km away
  48. 4.582 km NW of La Ligua, Chile · 4008 days ago · 35 km deep · 29 km away
  49. 4.2137 km WSW of Ovalle, Chile · 4008 days ago · 25 km deep · 99 km away
  50. 4.387 km WNW of La Ligua, Chile · 4007 days ago · 6 km deep · 49 km away
  51. 4.081 km W of Illapel, Chile · 4007 days ago · 10 km deep · 11 km away
  52. 4.5107 km W of Illapel, Chile · 4007 days ago · 10 km deep · 18 km away
  53. 4.275 km NW of Illapel, Chile · 4007 days ago · 31 km deep · 76 km away
  54. 3.9164 km W of Illapel, Chile · 4006 days ago · 10 km deep · 76 km away
  55. 3.944 km WSW of Illapel, Chile · 4005 days ago · 35 km deep · 48 km away
  56. 4.377 km W of Illapel, Chile · 4005 days ago · 34 km deep · 15 km away
  57. 4.6157 km WSW of Ovalle, Chile · 4005 days ago · 10 km deep · 99 km away
  58. 4.261 km NW of La Ligua, Chile · 4004 days ago · 35 km deep · 50 km away
  59. 4.267 km NW of La Ligua, Chile · 4004 days ago · 23 km deep · 44 km away
  60. 4.288 km W of Illapel, Chile · 4004 days ago · 21 km deep · 12 km away · felt by 1

The first 60 of 114.

Before

  1. 4.286 km WNW of Illapel, Chile · 4017 days ago · 21 km deep · 36 km away
  2. 4.069 km W of Illapel, Chile · 4017 days ago · 34 km deep · 36 km away
  3. 4.397 km NW of Valparaíso, Chile · 4017 days ago · 10 km deep · 67 km away
  4. 4.369 km WNW of Illapel, Chile · 4017 days ago · 10 km deep · 47 km away
  5. 4.443 km WNW of Illapel, Chile · 4017 days ago · 35 km deep · 67 km away
  6. 4.478 km W of Illapel, Chile · 4017 days ago · 27 km deep · 23 km away
  7. 5.074 km W of Illapel, Chile · 4017 days ago · 10 km deep · 25 km away · felt by 3
  8. 4.576 km W of Illapel, Chile · 4017 days ago · 10 km deep · 32 km away
  9. 4.680 km WNW of Illapel, Chile · 4017 days ago · 11 km deep · 54 km away · felt by 1
  10. 4.1101 km W of Illapel, Chile · 4017 days ago · 10 km deep · 16 km away
  11. 4.6156 km WNW of Illapel, Chile · 4017 days ago · 10 km deep · 92 km away
  12. 4.0123 km W of Illapel, Chile · 4017 days ago · 10 km deep · 40 km away
  13. 4.39 km W of Illapel, Chile · 4017 days ago · 45 km deep · 82 km away
  14. 4.063 km WNW of La Ligua, Chile · 4017 days ago · 16 km deep · 59 km away
  15. 4.364 km SW of Ovalle, Chile · 4017 days ago · 34 km deep · 97 km away · felt by 2
  16. 3.974 km WNW of Illapel, Chile · 4017 days ago · 29 km deep · 42 km away
  17. 4.782 km WSW of Ovalle, Chile · 4018 days ago · 20 km deep · 96 km away
  18. 4.1109 km WNW of La Ligua, Chile · 4018 days ago · 10 km deep · 50 km away
  19. 4.089 km WNW of Illapel, Chile · 4018 days ago · 18 km deep · 67 km away · felt by 1
  20. 4.4Off the coast of Valparaiso, Chile · 4018 days ago · 16 km deep · 42 km away · felt by 8

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20003nie. Read Tue, Sep 22, 2026, 9:05 AM UTC.