Chile earthquakes

M4.0 earthquake 84 km W of Illapel, Chile

A magnitude 4.0 earthquake struck 84 km W of Illapel, Chile on Mon, Sep 28, 2015, 12:07 AM GMT-3 (03:07 UTC), 18 km (11 mi) below the surface.

A larger quake followed: M4.1 47 km NW 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
2015-09-28 03:07:39 UTC
Depth
17.9 km (11.1 mi), shallow
Epicenter
31.700° S, 72.056° 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 358°, dip 29°, rake 93°
Nodal plane 2
Strike 174°, dip 61°, rake 88°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 5.5 km horizontally, 1.8 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
190°, poorly surrounded by stations
Stations used
35

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 97 in the 60 days after this one and 102 in the 30 days before it.

After

  1. 4.147 km NW of Illapel, Chile · 4013 days ago · 34 km deep · 59 km away
  2. 4.8109 km W of Illapel, Chile · 4013 days ago · 11 km deep · 26 km away
  3. 4.556 km W of Illapel, Chile · 4013 days ago · 14 km deep · 31 km away
  4. 4.360 km NW of Illapel, Chile · 4013 days ago · 34 km deep · 76 km away
  5. 4.434 km W of Illapel, Chile · 4013 days ago · 40 km deep · 52 km away
  6. 3.868 km SW of Ovalle, Chile · 4013 days ago · 30 km deep · 82 km away
  7. 4.365 km NW of Illapel, Chile · 4012 days ago · 33 km deep · 74 km away
  8. 3.583 km WSW of Illapel, Chile · 4012 days ago · 38 km deep · 20 km away
  9. 4.293 km WNW of Illapel, Chile · 4012 days ago · 10 km deep · 37 km away
  10. 4.484 km W of Illapel, Chile · 4012 days ago · 10 km deep · 18 km away
  11. 4.426 km SW of Illapel, Chile · 4012 days ago · 29 km deep · 65 km away
  12. 4.253 km WNW of Illapel, Chile · 4011 days ago · 24 km deep · 39 km away
  13. 4.276 km WSW of Ovalle, Chile · 4011 days ago · 14 km deep · 89 km away
  14. 4.2160 km W of Illapel, Chile · 4011 days ago · 10 km deep · 76 km away
  15. 4.489 km W of Illapel, Chile · 4011 days ago · 14 km deep · 9 km away
  16. 4.4104 km WSW of Illapel, Chile · 4010 days ago · 15 km deep · 28 km away
  17. 4.022 km SW of Illapel, Chile · 4010 days ago · 48 km deep · 67 km away
  18. 4.553 km SW of Ovalle, Chile · 4009 days ago · 31 km deep · 95 km away
  19. 4.5155 km W of Illapel, Chile · 4009 days ago · 10 km deep · 76 km away
  20. 4.4157 km W of Illapel, Chile · 4009 days ago · 5 km deep · 73 km away
  21. 4.582 km NW of La Ligua, Chile · 4009 days ago · 35 km deep · 37 km away
  22. 4.2137 km WSW of Ovalle, Chile · 4009 days ago · 25 km deep · 93 km away
  23. 4.054 km SSW of Ovalle, Chile · 4009 days ago · 58 km deep · 97 km away
  24. 4.387 km WNW of La Ligua, Chile · 4008 days ago · 6 km deep · 60 km away
  25. 4.081 km W of Illapel, Chile · 4008 days ago · 10 km deep · 7 km away
  26. 4.5107 km W of Illapel, Chile · 4008 days ago · 10 km deep · 23 km away
  27. 4.275 km NW of Illapel, Chile · 4008 days ago · 31 km deep · 64 km away
  28. 3.9164 km W of Illapel, Chile · 4007 days ago · 10 km deep · 81 km away
  29. 3.944 km WSW of Illapel, Chile · 4006 days ago · 35 km deep · 43 km away
  30. 4.377 km W of Illapel, Chile · 4006 days ago · 34 km deep · 8 km away
  31. 4.6157 km WSW of Ovalle, Chile · 4006 days ago · 10 km deep · 95 km away
  32. 4.261 km NW of La Ligua, Chile · 4005 days ago · 35 km deep · 55 km away
  33. 4.267 km NW of La Ligua, Chile · 4005 days ago · 23 km deep · 49 km away
  34. 4.288 km W of Illapel, Chile · 4005 days ago · 21 km deep · 4 km away · felt by 1
  35. 4.735 km NW of Illapel, Chile · 4005 days ago · 43 km deep · 64 km away · felt by 3
  36. 4.175 km W of Illapel, Chile · 4005 days ago · 10 km deep · 8 km away
  37. 4.559 km WNW of Illapel, Chile · 4004 days ago · 24 km deep · 36 km away
  38. 4.2121 km W of Illapel, Chile · 4004 days ago · 10 km deep · 38 km away
  39. 4.1116 km W of Illapel, Chile · 4003 days ago · 10 km deep · 33 km away
  40. 4.031 km WNW of Illapel, Chile · 4002 days ago · 39 km deep · 58 km away
  41. 5.554 km WSW of Illapel, Chile · 4002 days ago · 35 km deep · 31 km away · felt by 18
  42. 4.1104 km W of Illapel, Chile · 4002 days ago · 14 km deep · 20 km away
  43. 4.148 km WSW of Illapel, Chile · 4001 days ago · 40 km deep · 39 km away
  44. 4.163 km NW of La Ligua, Chile · 3999 days ago · 37 km deep · 53 km away
  45. 5.679 km NW of Illapel, Chile · 3999 days ago · 21 km deep · 61 km away · felt by 8
  46. 5.080 km NW of Illapel, Chile · 3999 days ago · 20 km deep · 61 km away
  47. 4.073 km NW of Illapel, Chile · 3999 days ago · 26 km deep · 65 km away
  48. 4.191 km NW of Illapel, Chile · 3999 days ago · 37 km deep · 63 km away
  49. 4.593 km NW of Illapel, Chile · 3999 days ago · 19 km deep · 63 km away
  50. 4.083 km SW of Ovalle, Chile · 3999 days ago · 35 km deep · 67 km away
  51. 3.995 km W of Illapel, Chile · 3998 days ago · 10 km deep · 12 km away
  52. 4.159 km NW of Illapel, Chile · 3998 days ago · 41 km deep · 70 km away
  53. 4.097 km WSW of Ovalle, Chile · 3997 days ago · 7 km deep · 86 km away
  54. 4.249 km NW of Illapel, Chile · 3997 days ago · 50 km deep · 74 km away
  55. 4.276 km WNW of Illapel, Chile · 3995 days ago · 30 km deep · 31 km away
  56. 4.291 km W of Illapel, Chile · 3994 days ago · 16 km deep · 8 km away
  57. 4.493 km WNW of Illapel, Chile · 3994 days ago · 10 km deep · 34 km away
  58. 4.076 km W of Illapel, Chile · 3994 days ago · 16 km deep · 9 km away
  59. 4.0109 km WNW of Illapel, Chile · 3992 days ago · 8 km deep · 46 km away
  60. 4.1104 km WNW of Illapel, Chile · 3992 days ago · 10 km deep · 42 km away

The first 60 of 97.

Before

  1. 4.674 km NW of Illapel, Chile · 4013 days ago · 24 km deep · 60 km away
  2. 5.450 km W of Illapel, Chile · 4013 days ago · 37 km deep · 34 km away · felt by 6
  3. 4.2163 km W of Illapel, Chile · 4014 days ago · 10 km deep · 79 km away
  4. 4.3172 km W of Illapel, Chile · 4014 days ago · 10 km deep · 88 km away
  5. 4.373 km W of Illapel, Chile · 4014 days ago · 26 km deep · 11 km away
  6. 3.976 km NW of Illapel, Chile · 4014 days ago · 29 km deep · 55 km away
  7. 4.1108 km WNW of Illapel, Chile · 4015 days ago · 10 km deep · 44 km away
  8. 4.271 km W of Illapel, Chile · 4015 days ago · 20 km deep · 16 km away
  9. 4.277 km WSW of Illapel, Chile · 4015 days ago · 33 km deep · 19 km away
  10. 4.587 km WSW of Illapel, Chile · 4015 days ago · 24 km deep · 13 km away
  11. 4.339 km NW of Illapel, Chile · 4015 days ago · 45 km deep · 65 km away
  12. 4.291 km WSW of Illapel, Chile · 4015 days ago · 13 km deep · 15 km away
  13. 4.771 km W of Illapel, Chile · 4016 days ago · 12 km deep · 23 km away
  14. 4.052 km W of Illapel, Chile · 4016 days ago · 25 km deep · 33 km away
  15. 4.398 km W of Illapel, Chile · 4016 days ago · 10 km deep · 17 km away
  16. 4.479 km WNW of Illapel, Chile · 4016 days ago · 21 km deep · 46 km away
  17. 4.096 km W of Illapel, Chile · 4016 days ago · 10 km deep · 14 km away
  18. 4.295 km W of La Ligua, Chile · 4016 days ago · 6 km deep · 69 km away
  19. 4.2104 km NW of Valparaíso, Chile · 4016 days ago · 14 km deep · 73 km away
  20. 4.498 km W of La Ligua, Chile · 4016 days ago · 10 km deep · 70 km away · felt by 1

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20003pla. Read Wed, Sep 23, 2026, 8:02 AM UTC.