Chile earthquakes

M4.2 earthquake 100 km NW of Vallenar, Chile

A magnitude 4.2 earthquake struck 100 km NW of Vallenar, Chile on Sun, Aug 23, 2020, 10:16 AM GMT-4 (14:16 UTC), 19 km (12 mi) below the surface.

A larger quake followed: M6.8 86 km NW of Vallenar, 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, regional moment), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2020-08-23 14:16:11 UTC
Depth
19.0 km (11.8 mi), shallow
Epicenter
27.829° S, 71.346° 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.

Fault motion and ground failure

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Faulting
Oblique reverse
Moment magnitude
4.2 Mwr
Nodal plane 1
Strike 156°, dip 44°, rake 58°
Nodal plane 2
Strike 17°, dip 54°, rake 117°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 6.6 km horizontally, 3.8 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
139°
Stations used
46

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 61 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 4.5110 km WNW of Vallenar, Chile · 2227 days ago · 10 km deep · 43 km away
  2. 6.886 km NW of Vallenar, Chile · 2223 days ago · 21 km deep · 16 km away · felt by 204 · tsunami flag
  3. 5.179 km NNW of Vallenar, Chile · 2223 days ago · 23 km deep · 23 km away
  4. 6.378 km NW of Vallenar, Chile · 2223 days ago · 16 km deep · 24 km away · felt by 5
  5. 5.180 km NNW of Vallenar, Chile · 2223 days ago · 28 km deep · 21 km away
  6. 4.875 km SW of Copiapó, Chile · 2223 days ago · 15 km deep · 45 km away
  7. 4.577 km NW of Vallenar, Chile · 2223 days ago · 34 km deep · 24 km away
  8. 4.687 km NW of Vallenar, Chile · 2223 days ago · 17 km deep · 14 km away
  9. 4.979 km NW of Vallenar, Chile · 2223 days ago · 24 km deep · 24 km away
  10. 4.888 km NNW of Vallenar, Chile · 2223 days ago · 17 km deep · 13 km away
  11. 5.483 km NW of Vallenar, Chile · 2223 days ago · 19 km deep · 18 km away
  12. 4.587 km NW of Vallenar, Chile · 2223 days ago · 21 km deep · 14 km away
  13. 4.181 km NW of Vallenar, Chile · 2223 days ago · 19 km deep · 21 km away
  14. 4.571 km NNW of Vallenar, Chile · 2223 days ago · 20 km deep · 44 km away
  15. 4.383 km NNW of Vallenar, Chile · 2223 days ago · 29 km deep · 18 km away
  16. 4.783 km NNW of Vallenar, Chile · 2223 days ago · 21 km deep · 23 km away
  17. 4.479 km NNW of Vallenar, Chile · 2223 days ago · 22 km deep · 22 km away
  18. 5.888 km NW of Vallenar, Chile · 2223 days ago · 18 km deep · 19 km away
  19. 4.185 km NW of Vallenar, Chile · 2223 days ago · 20 km deep · 22 km away
  20. 4.495 km NW of Vallenar, Chile · 2223 days ago · 10 km deep · 19 km away
  21. 4.2100 km NW of Vallenar, Chile · 2223 days ago · 13 km deep · 12 km away
  22. 5.799 km NW of Vallenar, Chile · 2223 days ago · 22 km deep · 6 km away
  23. 4.491 km NW of Vallenar, Chile · 2223 days ago · 20 km deep · 19 km away
  24. 4.683 km NNW of Vallenar, Chile · 2223 days ago · 35 km deep · 24 km away
  25. 4.499 km NW of Vallenar, Chile · 2223 days ago · 12 km deep · 18 km away
  26. 4.3117 km NW of Vallenar, Chile · 2223 days ago · 10 km deep · 24 km away
  27. 3.8116 km NW of Vallenar, Chile · 2223 days ago · 16 km deep · 17 km away
  28. 3.9111 km NW of Vallenar, Chile · 2223 days ago · 17 km deep · 20 km away
  29. 5.099 km NW of Vallenar, Chile · 2222 days ago · 16 km deep · 7 km away · felt by 1
  30. 6.594 km NW of Vallenar, Chile · 2222 days ago · 16 km deep · 10 km away · felt by 44
  31. 4.4101 km NW of Vallenar, Chile · 2222 days ago · 10 km deep · 21 km away
  32. 4.8102 km NW of Vallenar, Chile · 2222 days ago · 15 km deep · 12 km away · felt by 1
  33. 4.3108 km NW of Vallenar, Chile · 2222 days ago · 10 km deep · 15 km away
  34. 4.493 km NW of Vallenar, Chile · 2222 days ago · 18 km deep · 12 km away
  35. 4.489 km NW of Vallenar, Chile · 2222 days ago · 26 km deep · 12 km away
  36. 3.9107 km NW of Vallenar, Chile · 2222 days ago · 18 km deep · 6 km away
  37. 4.778 km NNW of Vallenar, Chile · 2222 days ago · 29 km deep · 23 km away
  38. 3.9123 km NW of Vallenar, Chile · 2222 days ago · 10 km deep · 36 km away
  39. 4.2117 km NW of Vallenar, Chile · 2221 days ago · 11 km deep · 26 km away
  40. 4.4107 km NW of Vallenar, Chile · 2221 days ago · 10 km deep · 22 km away
  41. 4.699 km NW of Vallenar, Chile · 2221 days ago · 10 km deep · 21 km away
  42. 4.0124 km NW of Vallenar, Chile · 2220 days ago · 10 km deep · 40 km away
  43. 4.6112 km NW of Vallenar, Chile · 2220 days ago · 10 km deep · 21 km away
  44. 4.4124 km NW of Vallenar, Chile · 2220 days ago · 11 km deep · 33 km away
  45. 4.4110 km NW of Vallenar, Chile · 2220 days ago · 10 km deep · 19 km away
  46. 4.2115 km NW of Vallenar, Chile · 2220 days ago · 10 km deep · 17 km away
  47. 4.0106 km NW of Vallenar, Chile · 2220 days ago · 17 km deep · 11 km away
  48. 4.8107 km NW of Vallenar, Chile · 2219 days ago · 11 km deep · 27 km away
  49. 4.0113 km NW of Vallenar, Chile · 2218 days ago · 12 km deep · 32 km away
  50. 4.4117 km W of Copiapó, Chile · 2218 days ago · 35 km deep · 64 km away
  51. 4.788 km NW of Vallenar, Chile · 2218 days ago · 19 km deep · 18 km away
  52. 4.590 km NW of Vallenar, Chile · 2218 days ago · 26 km deep · 20 km away
  53. 4.3103 km NW of Vallenar, Chile · 2217 days ago · 9 km deep · 6 km away
  54. 4.4111 km NW of Vallenar, Chile · 2216 days ago · 10 km deep · 41 km away
  55. 4.6116 km NW of Vallenar, Chile · 2213 days ago · 10 km deep · 17 km away · felt by 1
  56. 4.583 km NW of Vallenar, Chile · 2212 days ago · 20 km deep · 32 km away
  57. 4.176 km W of Vallenar, Chile · 2210 days ago · 38 km deep · 85 km away
  58. 4.3106 km NW of Vallenar, Chile · 2209 days ago · 17 km deep · 14 km away
  59. 4.5101 km NW of Vallenar, Chile · 2209 days ago · 18 km deep · 13 km away
  60. 4.462 km WNW of Vallenar, Chile · 2203 days ago · 38 km deep · 71 km away

The first 60 of 61.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000bjek. Read Sat, Oct 3, 2026, 3:00 AM UTC.