Chile earthquakes

M4.0 earthquake 82 km W of Illapel, Chile

A magnitude 4.0 earthquake struck 82 km W of Illapel, Chile on Wed, Sep 23, 2015, 7:48 PM GMT-3 (22:48 UTC), 16 km (10 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
4.0 (mwr), light
Local time
UTC
2015-09-23 22:48:49 UTC
Depth
15.8 km (9.8 mi), shallow
Epicenter
31.750° S, 72.033° 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
4.0 Mwr
Nodal plane 1
Strike 353°, dip 42°, rake 87°
Nodal plane 2
Strike 177°, dip 48°, rake 92°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 5.7 km horizontally, 3.9 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
150°
Stations used
43

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 118 in the 60 days after this one and 81 in the 30 days before it.

After

  1. 4.2105 km W of Illapel, Chile · 4018 days ago · 10 km deep · 23 km away
  2. 4.375 km WSW of Ovalle, Chile · 4017 days ago · 25 km deep · 100 km away
  3. 4.4100 km WSW of Illapel, Chile · 4017 days ago · 10 km deep · 19 km away
  4. 4.496 km WSW of Illapel, Chile · 4017 days ago · 10 km deep · 15 km away
  5. 4.3100 km WSW of Illapel, Chile · 4017 days ago · 10 km deep · 18 km away
  6. 4.744 km W of Illapel, Chile · 4017 days ago · 35 km deep · 40 km away
  7. 4.7Off the coast of Valparaiso, Chile · 4017 days ago · 10 km deep · 59 km away
  8. 4.590 km W of Illapel, Chile · 4017 days ago · 7 km deep · 11 km away
  9. 4.498 km W of La Ligua, Chile · 4016 days ago · 10 km deep · 66 km away · felt by 1
  10. 4.2104 km NW of Valparaíso, Chile · 4016 days ago · 14 km deep · 68 km away
  11. 4.295 km W of La Ligua, Chile · 4016 days ago · 6 km deep · 64 km away
  12. 4.096 km W of Illapel, Chile · 4016 days ago · 10 km deep · 13 km away
  13. 4.479 km WNW of Illapel, Chile · 4016 days ago · 21 km deep · 51 km away
  14. 4.398 km W of Illapel, Chile · 4016 days ago · 10 km deep · 16 km away
  15. 4.052 km W of Illapel, Chile · 4016 days ago · 25 km deep · 33 km away
  16. 4.771 km W of Illapel, Chile · 4016 days ago · 12 km deep · 27 km away
  17. 4.291 km WSW of Illapel, Chile · 4015 days ago · 13 km deep · 11 km away
  18. 4.339 km NW of Illapel, Chile · 4015 days ago · 45 km deep · 66 km away
  19. 4.587 km WSW of Illapel, Chile · 4015 days ago · 24 km deep · 8 km away
  20. 4.277 km WSW of Illapel, Chile · 4015 days ago · 33 km deep · 14 km away
  21. 4.271 km W of Illapel, Chile · 4015 days ago · 20 km deep · 19 km away
  22. 4.1108 km WNW of Illapel, Chile · 4015 days ago · 10 km deep · 50 km away
  23. 3.976 km NW of Illapel, Chile · 4015 days ago · 29 km deep · 59 km away
  24. 4.373 km W of Illapel, Chile · 4015 days ago · 26 km deep · 12 km away
  25. 4.3172 km W of Illapel, Chile · 4015 days ago · 10 km deep · 90 km away
  26. 4.2163 km W of Illapel, Chile · 4015 days ago · 10 km deep · 81 km away
  27. 5.450 km W of Illapel, Chile · 4014 days ago · 37 km deep · 33 km away · felt by 6
  28. 4.674 km NW of Illapel, Chile · 4014 days ago · 24 km deep · 64 km away
  29. 4.084 km W of Illapel, Chile · 4013 days ago · 18 km deep · 6 km away
  30. 4.147 km NW of Illapel, Chile · 4013 days ago · 34 km deep · 61 km away
  31. 4.8109 km W of Illapel, Chile · 4013 days ago · 11 km deep · 27 km away
  32. 4.556 km W of Illapel, Chile · 4013 days ago · 14 km deep · 32 km away
  33. 4.360 km NW of Illapel, Chile · 4013 days ago · 34 km deep · 79 km away
  34. 4.434 km W of Illapel, Chile · 4013 days ago · 40 km deep · 52 km away
  35. 3.868 km SW of Ovalle, Chile · 4013 days ago · 30 km deep · 86 km away
  36. 4.365 km NW of Illapel, Chile · 4012 days ago · 33 km deep · 78 km away
  37. 3.583 km WSW of Illapel, Chile · 4012 days ago · 38 km deep · 15 km away
  38. 4.293 km WNW of Illapel, Chile · 4012 days ago · 10 km deep · 42 km away
  39. 4.484 km W of Illapel, Chile · 4012 days ago · 10 km deep · 24 km away
  40. 4.426 km SW of Illapel, Chile · 4012 days ago · 29 km deep · 62 km away
  41. 4.253 km WNW of Illapel, Chile · 4012 days ago · 24 km deep · 41 km away
  42. 4.276 km WSW of Ovalle, Chile · 4011 days ago · 14 km deep · 94 km away
  43. 4.2160 km W of Illapel, Chile · 4011 days ago · 10 km deep · 79 km away
  44. 4.489 km W of Illapel, Chile · 4011 days ago · 14 km deep · 7 km away
  45. 4.4104 km WSW of Illapel, Chile · 4010 days ago · 15 km deep · 25 km away
  46. 4.022 km SW of Illapel, Chile · 4010 days ago · 48 km deep · 64 km away
  47. 4.553 km SW of Ovalle, Chile · 4009 days ago · 31 km deep · 99 km away
  48. 4.5155 km W of Illapel, Chile · 4009 days ago · 10 km deep · 80 km away
  49. 4.4157 km W of Illapel, Chile · 4009 days ago · 5 km deep · 75 km away
  50. 4.582 km NW of La Ligua, Chile · 4009 days ago · 35 km deep · 31 km away
  51. 4.2137 km WSW of Ovalle, Chile · 4009 days ago · 25 km deep · 99 km away
  52. 4.054 km SSW of Ovalle, Chile · 4009 days ago · 58 km deep · 100 km away
  53. 4.387 km WNW of La Ligua, Chile · 4008 days ago · 6 km deep · 55 km away
  54. 4.081 km W of Illapel, Chile · 4008 days ago · 10 km deep · 2 km away
  55. 4.5107 km W of Illapel, Chile · 4008 days ago · 10 km deep · 25 km away
  56. 4.275 km NW of Illapel, Chile · 4008 days ago · 31 km deep · 68 km away
  57. 3.9164 km W of Illapel, Chile · 4008 days ago · 10 km deep · 83 km away
  58. 3.944 km WSW of Illapel, Chile · 4007 days ago · 35 km deep · 40 km away
  59. 4.377 km W of Illapel, Chile · 4006 days ago · 34 km deep · 6 km away
  60. 4.6157 km WSW of Ovalle, Chile · 4006 days ago · 10 km deep · 100 km away

The first 60 of 118.

Before

  1. 4.191 km W of Illapel, Chile · 4018 days ago · 9 km deep · 10 km away · felt by 1
  2. 4.286 km WNW of Illapel, Chile · 4018 days ago · 21 km deep · 31 km away
  3. 4.365 km WSW of Ovalle, Chile · 4018 days ago · 30 km deep · 99 km away
  4. 4.069 km W of Illapel, Chile · 4018 days ago · 34 km deep · 27 km away
  5. 4.256 km SW of Ovalle, Chile · 4018 days ago · 28 km deep · 95 km away
  6. 4.397 km NW of Valparaíso, Chile · 4018 days ago · 10 km deep · 75 km away
  7. 4.369 km WNW of Illapel, Chile · 4018 days ago · 10 km deep · 38 km away
  8. 4.443 km WNW of Illapel, Chile · 4018 days ago · 35 km deep · 58 km away
  9. 4.478 km W of Illapel, Chile · 4018 days ago · 27 km deep · 15 km away
  10. 5.074 km W of Illapel, Chile · 4018 days ago · 10 km deep · 17 km away · felt by 3
  11. 4.576 km W of Illapel, Chile · 4018 days ago · 10 km deep · 24 km away
  12. 4.680 km WNW of Illapel, Chile · 4018 days ago · 11 km deep · 47 km away · felt by 1
  13. 4.1101 km W of Illapel, Chile · 4018 days ago · 10 km deep · 21 km away
  14. 4.6156 km WNW of Illapel, Chile · 4019 days ago · 10 km deep · 94 km away
  15. 4.0123 km W of Illapel, Chile · 4019 days ago · 10 km deep · 45 km away
  16. 4.39 km W of Illapel, Chile · 4019 days ago · 45 km deep · 73 km away
  17. 4.063 km WNW of La Ligua, Chile · 4019 days ago · 16 km deep · 62 km away
  18. 4.364 km SW of Ovalle, Chile · 4019 days ago · 34 km deep · 89 km away · felt by 2
  19. 3.974 km WNW of Illapel, Chile · 4019 days ago · 29 km deep · 34 km away
  20. 4.782 km WSW of Ovalle, Chile · 4019 days ago · 20 km deep · 90 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20003nif. Read Wed, Sep 23, 2026, 2:24 PM UTC.