California earthquakes

M1.7 earthquake 10 km SSW of Huron, California

A magnitude 1.7 earthquake struck 10 km SSW of Huron, California on Sun, Dec 21, 1986, 10:42 PM PST (06:42 UTC), 9 km (6 mi) below the surface.

A larger quake followed: M2.0 2 km E of San Ardo, CA. This one was a foreshock.

Huron forecastMore in California

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.7 (md), micro
Local time
UTC
1986-12-22 06:42:59 UTC
Depth
9.2 km (5.7 mi), shallow
Epicenter
36.116° N, 120.141° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.6 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
136°
Stations used
20

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 115 in the 60 days after this one and 72 in the 30 days before it.

After

  1. 2.02 km E of San Ardo, CA · 14520 days ago · 11 km deep · 67 km away
  2. 2.427 km NE of Soledad, California · 14520 days ago · 10 km deep · 99 km away
  3. 1.918 km SSW of Kettleman City, California · 14520 days ago · 17 km deep · 33 km away
  4. 2.220 km SSE of Avenal, California · 14520 days ago · 16 km deep · 33 km away
  5. 1.823 km NE of San Ardo, California · 14519 days ago · 7 km deep · 55 km away
  6. 1.54 km NW of Parkfield, California · 14518 days ago · 5 km deep · 37 km away
  7. 1.96 km W of Kettleman City, California · 14518 days ago · 11 km deep · 15 km away
  8. 1.823 km NE of Greenfield, California · 14518 days ago · 6 km deep · 89 km away
  9. 2.412 km SW of Huron, California · 14517 days ago · 10 km deep · 4 km away
  10. 1.78 km W of Atascadero, California · 14517 days ago · 5 km deep · 91 km away
  11. 1.96 km SSW of Huron, California · 14516 days ago · 10 km deep · 4 km away
  12. 1.631 km ENE of Soledad, California · 14514 days ago · 9 km deep · 93 km away
  13. 2.28 km NNW of Avenal, California · 14513 days ago · 3 km deep · 5 km away
  14. 1.91 km ESE of San Ardo, California · 14513 days ago · 10 km deep · 68 km away
  15. 2.122 km ENE of Soledad, California · 14512 days ago · 3 km deep · 99 km away
  16. 2.422 km ENE of Soledad, California · 14512 days ago · 3 km deep · 99 km away
  17. 2.022 km NE of Soledad, California · 14511 days ago · 3 km deep · 99 km away
  18. 1.88 km S of Huron, California · 14511 days ago · 16 km deep · 3 km away
  19. 1.711 km W of Three Rocks, California · 14511 days ago · 5 km deep · 56 km away
  20. 2.08 km N of Coalinga, California · 14510 days ago · 11 km deep · 22 km away
  21. 2.024 km NE of King City, California · 14510 days ago · 2 km deep · 77 km away
  22. 1.510 km N of Coalinga, California · 14509 days ago · 11 km deep · 23 km away
  23. 1.523 km NE of King City, California · 14509 days ago · 3 km deep · 74 km away
  24. 1.724 km ENE of Greenfield, California · 14508 days ago · 9 km deep · 85 km away
  25. 2.025 km ENE of Greenfield, California · 14508 days ago · 7 km deep · 85 km away
  26. 1.625 km ENE of Greenfield, California · 14508 days ago · 4 km deep · 85 km away
  27. 1.617 km N of Coalinga, California · 14508 days ago · 5 km deep · 30 km away
  28. 1.715 km N of Coalinga, California · 14507 days ago · 10 km deep · 28 km away
  29. 1.724 km NE of King City, California · 14507 days ago · 1 km deep · 79 km away
  30. 1.69 km N of Coalinga, California · 14506 days ago · 10 km deep · 22 km away
  31. 2.325km SSW of Alpaugh, CA · 14504 days ago · 5 km deep · 66 km away
  32. 2.27 km ENE of Coalinga, California · 14504 days ago · 8 km deep · 14 km away
  33. 1.922 km ENE of Soledad, California · 14503 days ago · 2 km deep · 98 km away
  34. 2.37 km ESE of Minkler, California · 14502 days ago · 18 km deep · 93 km away
  35. 1.631 km WNW of Coalinga, California · 14501 days ago · 12 km deep · 50 km away
  36. 1.930 km W of Three Rocks, California · 14501 days ago · 2 km deep · 64 km away
  37. 1.527 km ESE of Shandon, California · 14500 days ago · 9 km deep · 63 km away
  38. 1.910 km NNW of Coalinga, California · 14500 days ago · 11 km deep · 26 km away
  39. 1.825 km ENE of San Ardo, California · 14500 days ago · 1 km deep · 44 km away
  40. 1.830 km ENE of San Lucas, California · 14496 days ago · 9 km deep · 56 km away
  41. 2.124 km NE of Greenfield, California · 14495 days ago · 6 km deep · 90 km away
  42. 1.712 km NE of Coalinga, California · 14494 days ago · 12 km deep · 17 km away
  43. 1.824 km NE of Greenfield, California · 14493 days ago · 8 km deep · 90 km away
  44. 1.729 km ENE of Soledad, California · 14493 days ago · 6 km deep · 95 km away
  45. 2.829 km ENE of Soledad, California · 14493 days ago · 7 km deep · 96 km away
  46. 2.13 km SSE of Kettleman City, California · 14493 days ago · 8 km deep · 23 km away
  47. 1.93 km SSE of Kettleman City, California · 14493 days ago · 12 km deep · 23 km away
  48. 2.522 km ENE of San Ardo, California · 14493 days ago · 5 km deep · 49 km away
  49. 2.125 km ENE of Greenfield, California · 14492 days ago · 6 km deep · 83 km away
  50. 1.917 km NW of Parkfield, California · 14489 days ago · 5 km deep · 40 km away
  51. 1.714 km N of Coalinga, California · 14489 days ago · 18 km deep · 27 km away
  52. 2.031 km SW of Three Rocks, California · 14489 days ago · 10 km deep · 53 km away
  53. 2.28 km NNE of Coalinga, California · 14487 days ago · 9 km deep · 18 km away
  54. 2.110 km N of Coalinga, California · 14485 days ago · 11 km deep · 23 km away
  55. 2.89 km ENE of Coalinga, California · 14485 days ago · 9 km deep · 14 km away
  56. 1.727 km ENE of Soledad, California · 14484 days ago · 8 km deep · 96 km away
  57. 1.515 km ENE of Greenfield, California · 14484 days ago · 4 km deep · 88 km away
  58. 2.09 km N of Coalinga, California · 14484 days ago · 9 km deep · 24 km away
  59. 2.024 km ENE of Soledad, California · 14484 days ago · 2 km deep · 93 km away
  60. 1.624 km NE of Greenfield, California · 14482 days ago · 6 km deep · 88 km away

The first 60 of 115.

Before

  1. 1.98 km NE of Coalinga, California · 14522 days ago · 10 km deep · 15 km away
  2. 1.729 km ENE of Soledad, California · 14522 days ago · 11 km deep · 95 km away
  3. 2.017 km WSW of Three Rocks, California · 14522 days ago · 6 km deep · 55 km away
  4. 1.69 km NNE of Coalinga, California · 14522 days ago · 9 km deep · 18 km away
  5. 2.017 km SSW of Kettleman City, California · 14523 days ago · 15 km deep · 30 km away
  6. 1.820 km S of Avenal, California · 14523 days ago · 17 km deep · 33 km away
  7. 1.818 km S of Kettleman City, California · 14523 days ago · 17 km deep · 33 km away
  8. 2.74 km SSE of Kettleman City, California · 14525 days ago · 12 km deep · 23 km away
  9. 1.810 km SW of Huron, California · 14525 days ago · 10 km deep · 7 km away
  10. 1.623 km ENE of Soledad, California · 14525 days ago · 4 km deep · 94 km away
  11. 2.15km W of Wasco, CA · 14527 days ago · 5 km deep · 89 km away
  12. 1.731 km ENE of Soledad, California · 14528 days ago · 9 km deep · 92 km away
  13. 1.724 km NE of Greenfield, California · 14528 days ago · 5 km deep · 89 km away
  14. 2.217 km S of Cantua Creek, California · 14529 days ago · 7 km deep · 29 km away
  15. 1.911 km NNW of Kettleman City, California · 14529 days ago · 2 km deep · 11 km away
  16. 1.75 km S of Huron, California · 14529 days ago · 6 km deep · 6 km away
  17. 1.524 km NE of Greenfield, California · 14529 days ago · 5 km deep · 89 km away
  18. 2.025 km WNW of Coalinga, California · 14530 days ago · 5 km deep · 46 km away
  19. 1.69 km SW of Kettleman City, California · 14531 days ago · 11 km deep · 22 km away
  20. 1.924 km NE of Greenfield, California · 14532 days ago · 5 km deep · 89 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc90813 (also filed as ci612416). Read Thu, Sep 24, 2026, 3:03 AM UTC.