Chile earthquakes

M4.2 earthquake 91 km W of Illapel, Chile

A magnitude 4.2 earthquake struck 91 km W of Illapel, Chile on Sat, Oct 17, 2015, 5:38 AM GMT-3 (08:38 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M5.5 27 km NNW 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
4.2 (mwr), light
Local time
UTC
2015-10-17 08:38:55 UTC
Depth
16.3 km (10.1 mi), shallow
Epicenter
31.668° S, 72.131° 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
4.2 Mwr
Nodal plane 1
Strike 13°, dip 43°, rake 104°
Nodal plane 2
Strike 173°, dip 49°, rake 77°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 7.1 km horizontally, 4.5 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
144°
Stations used
39

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 52 in the 60 days after this one and at least 200 in the 30 days before it.

After

  1. 4.493 km WNW of Illapel, Chile · 4000 days ago · 10 km deep · 30 km away
  2. 4.076 km W of Illapel, Chile · 4000 days ago · 16 km deep · 17 km away
  3. 4.0109 km WNW of Illapel, Chile · 3999 days ago · 8 km deep · 41 km away
  4. 4.1104 km WNW of Illapel, Chile · 3998 days ago · 10 km deep · 37 km away
  5. 4.276 km NW of Illapel, Chile · 3998 days ago · 30 km deep · 67 km away
  6. 4.283 km W of Illapel, Chile · 3997 days ago · 10 km deep · 9 km away
  7. 4.278 km NW of Illapel, Chile · 3996 days ago · 22 km deep · 62 km away
  8. 4.579 km W of La Ligua, Chile · 3995 days ago · 10 km deep · 79 km away
  9. 4.336 km W of Illapel, Chile · 3994 days ago · 37 km deep · 56 km away
  10. 5.036 km NW of Illapel, Chile · 3993 days ago · 40 km deep · 66 km away · felt by 6
  11. 4.191 km W of Illapel, Chile · 3991 days ago · 29 km deep · 1 km away
  12. 4.388 km WSW of Ovalle, Chile · 3991 days ago · 15 km deep · 100 km away
  13. 4.381 km WSW of Ovalle, Chile · 3991 days ago · 27 km deep · 92 km away
  14. 4.256 km WSW of Illapel, Chile · 3989 days ago · 31 km deep · 37 km away
  15. 4.688 km W of Illapel, Chile · 3988 days ago · 10 km deep · 6 km away
  16. 4.3108 km W of Illapel, Chile · 3988 days ago · 10 km deep · 20 km away
  17. 4.097 km W of Illapel, Chile · 3988 days ago · 23 km deep · 10 km away
  18. 3.997 km WSW of Illapel, Chile · 3988 days ago · 20 km deep · 20 km away
  19. 4.386 km WSW of Illapel, Chile · 3988 days ago · 2 km deep · 19 km away
  20. 4.278 km W of Illapel, Chile · 3987 days ago · 35 km deep · 14 km away
  21. 4.180 km SW of Ovalle, Chile · 3986 days ago · 20 km deep · 70 km away
  22. 4.1109 km WNW of Illapel, Chile · 3983 days ago · 4 km deep · 52 km away
  23. 4.667 km WSW of Ovalle, Chile · 3979 days ago · 35 km deep · 88 km away
  24. 4.684 km WNW of Illapel, Chile · 3979 days ago · 8 km deep · 28 km away · felt by 1
  25. 4.198 km W of Illapel, Chile · 3978 days ago · 13 km deep · 14 km away
  26. 4.493 km W of Illapel, Chile · 3977 days ago · 10 km deep · 12 km away
  27. 4.236 km WSW of Illapel, Chile · 3976 days ago · 35 km deep · 59 km away
  28. 4.276 km SW of Ovalle, Chile · 3975 days ago · 20 km deep · 79 km away
  29. 4.3Near the coast of Coquimbo, Chile · 3971 days ago · 38 km deep · 62 km away
  30. 4.359 km WSW of Ovalle, Chile · 3971 days ago · 37 km deep · 98 km away
  31. 4.186 km WSW of Illapel, Chile · 3970 days ago · 10 km deep · 20 km away
  32. 4.273 km W of Illapel, Chile · 3969 days ago · 32 km deep · 22 km away
  33. 4.4138 km WNW of Illapel, Chile · 3967 days ago · 10 km deep · 58 km away · felt by 1
  34. 4.195 km WSW of Ovalle, Chile · 3967 days ago · 24 km deep · 67 km away
  35. 4.353 km W of Illapel, Chile · 3965 days ago · 30 km deep · 40 km away
  36. 4.6161 km WSW of Ovalle, Chile · 3965 days ago · 10 km deep · 85 km away
  37. 4.072 km W of Illapel, Chile · 3964 days ago · 24 km deep · 25 km away
  38. 4.299 km WSW of Illapel, Chile · 3963 days ago · 3 km deep · 22 km away
  39. 5.092 km WSW of Illapel, Chile · 3962 days ago · 10 km deep · 15 km away
  40. 4.2103 km WSW of Illapel, Chile · 3962 days ago · 11 km deep · 23 km away
  41. 4.6100 km WSW of Illapel, Chile · 3962 days ago · 10 km deep · 23 km away
  42. 4.771 km W of Illapel, Chile · 3962 days ago · 15 km deep · 22 km away
  43. 4.729 km W of Illapel, Chile · 3956 days ago · 40 km deep · 62 km away
  44. 4.277 km W of Illapel, Chile · 3954 days ago · 34 km deep · 15 km away
  45. 4.277 km WSW of Ovalle, Chile · 3953 days ago · 40 km deep · 91 km away
  46. 4.2107 km W of Illapel, Chile · 3953 days ago · 10 km deep · 19 km away
  47. 4.471 km WNW of Illapel, Chile · 3950 days ago · 35 km deep · 31 km away
  48. 5.527 km NNW of Illapel, Chile · 3950 days ago · 50 km deep · 88 km away · felt by 11
  49. 4.272 km WSW of Ovalle, Chile · 3948 days ago · 27 km deep · 100 km away
  50. 4.4143 km WNW of Illapel, Chile · 3945 days ago · 3 km deep · 68 km away
  51. 4.186 km W of Illapel, Chile · 3944 days ago · 10 km deep · 5 km away
  52. 4.186 km W of Illapel, Chile · 3944 days ago · 10 km deep · 6 km away

Before

  1. 4.276 km WNW of Illapel, Chile · 4001 days ago · 30 km deep · 32 km away
  2. 4.764 km WSW of Ovalle, Chile · 4002 days ago · 34 km deep · 99 km away
  3. 4.249 km NW of Illapel, Chile · 4003 days ago · 50 km deep · 78 km away
  4. 4.097 km WSW of Ovalle, Chile · 4004 days ago · 7 km deep · 82 km away
  5. 4.159 km NW of Illapel, Chile · 4004 days ago · 41 km deep · 73 km away
  6. 3.995 km W of Illapel, Chile · 4004 days ago · 10 km deep · 10 km away
  7. 4.083 km SW of Ovalle, Chile · 4005 days ago · 35 km deep · 67 km away
  8. 4.593 km NW of Illapel, Chile · 4005 days ago · 19 km deep · 61 km away
  9. 4.191 km NW of Illapel, Chile · 4006 days ago · 37 km deep · 62 km away
  10. 4.073 km NW of Illapel, Chile · 4006 days ago · 26 km deep · 65 km away
  11. 5.080 km NW of Illapel, Chile · 4006 days ago · 20 km deep · 61 km away
  12. 5.679 km NW of Illapel, Chile · 4006 days ago · 21 km deep · 61 km away · felt by 8
  13. 4.163 km NW of La Ligua, Chile · 4006 days ago · 37 km deep · 60 km away
  14. 4.148 km WSW of Illapel, Chile · 4007 days ago · 40 km deep · 47 km away
  15. 4.1104 km W of Illapel, Chile · 4008 days ago · 14 km deep · 14 km away
  16. 5.554 km WSW of Illapel, Chile · 4008 days ago · 35 km deep · 38 km away · felt by 18
  17. 4.031 km WNW of Illapel, Chile · 4009 days ago · 39 km deep · 64 km away
  18. 4.1116 km W of Illapel, Chile · 4010 days ago · 10 km deep · 26 km away
  19. 4.2121 km W of Illapel, Chile · 4010 days ago · 10 km deep · 33 km away
  20. 4.559 km WNW of Illapel, Chile · 4010 days ago · 24 km deep · 39 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10003pbi. Read Tue, Sep 29, 2026, 7:30 PM UTC.