California earthquakes

M1.7 earthquake 11 km W of Three Rocks, California

A magnitude 1.7 earthquake struck 11 km W of Three Rocks, California on Wed, Dec 31, 1986, 9:54 PM PST (05:54 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.0 8 km N of Coalinga, California. 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
1.7 (md), micro
Local time
UTC
1987-01-01 05:54:10 UTC
Depth
4.7 km (2.9 mi), shallow
Epicenter
36.511° N, 120.521° 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 2.3 km horizontally, 7.8 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
178°
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 185 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 2.08 km N of Coalinga, California · 14509 days ago · 11 km deep · 36 km away
  2. 2.33 km ESE of Tres Pinos, California · 14508 days ago · 7 km deep · 74 km away
  3. 2.024 km NE of King City, California · 14508 days ago · 2 km deep · 40 km away
  4. 1.6Central California · 14508 days ago · 5 km deep · 78 km away
  5. 1.510 km N of Coalinga, California · 14507 days ago · 11 km deep · 34 km away
  6. 1.523 km NE of King City, California · 14507 days ago · 3 km deep · 40 km away
  7. 1.724 km ENE of Greenfield, California · 14507 days ago · 9 km deep · 44 km away
  8. 2.025 km ENE of Greenfield, California · 14507 days ago · 7 km deep · 44 km away
  9. 1.625 km ENE of Greenfield, California · 14507 days ago · 4 km deep · 43 km away
  10. 1.68 km SSW of Tres Pinos, California · 14507 days ago · 3 km deep · 79 km away
  11. 1.617 km N of Coalinga, California · 14507 days ago · 5 km deep · 27 km away
  12. 1.715 km N of Coalinga, California · 14506 days ago · 10 km deep · 29 km away
  13. 1.724 km NE of King City, California · 14505 days ago · 1 km deep · 42 km away
  14. 1.69 km N of Coalinga, California · 14504 days ago · 10 km deep · 36 km away
  15. 1.529 km ESE of Tres Pinos, California · 14504 days ago · 5 km deep · 49 km away
  16. 2.27 km ENE of Coalinga, California · 14502 days ago · 8 km deep · 43 km away
  17. 1.922 km ENE of Soledad, California · 14501 days ago · 2 km deep · 53 km away
  18. 1.912 km S of Tres Pinos, California · 14500 days ago · 6 km deep · 72 km away
  19. 1.516 km SSE of Tres Pinos, California · 14500 days ago · 5 km deep · 68 km away
  20. 1.910 km ESE of Gilroy, California · 14500 days ago · 3 km deep · 98 km away
  21. 1.631 km WNW of Coalinga, California · 14500 days ago · 12 km deep · 27 km away
  22. 1.930 km W of Three Rocks, California · 14499 days ago · 2 km deep · 19 km away
  23. 1.910 km NNW of Coalinga, California · 14498 days ago · 11 km deep · 33 km away
  24. 1.825 km ENE of San Ardo, California · 14498 days ago · 1 km deep · 50 km away
  25. 1.521 km NE of Soledad, California · 14498 days ago · 7 km deep · 60 km away
  26. 2.622 km NE of Soledad, California · 14495 days ago · 4 km deep · 59 km away
  27. 1.830 km ENE of San Lucas, California · 14494 days ago · 9 km deep · 33 km away
  28. 2.124 km NE of Greenfield, California · 14493 days ago · 6 km deep · 47 km away
  29. 2.1Central California · 14493 days ago · 4 km deep · 63 km away
  30. 2.121 km SSE of Tres Pinos, California · 14493 days ago · 4 km deep · 63 km away
  31. 1.712 km NE of Coalinga, California · 14492 days ago · 12 km deep · 39 km away
  32. 1.824 km NE of Greenfield, California · 14492 days ago · 8 km deep · 47 km away
  33. 1.729 km ENE of Soledad, California · 14491 days ago · 6 km deep · 47 km away
  34. 2.829 km ENE of Soledad, California · 14491 days ago · 7 km deep · 48 km away
  35. 2.13 km SSE of Kettleman City, California · 14491 days ago · 8 km deep · 78 km away
  36. 1.93 km SSE of Kettleman City, California · 14491 days ago · 12 km deep · 79 km away
  37. 1.910 km NNW of Hollister, California · 14491 days ago · 2 km deep · 95 km away
  38. 2.522 km ENE of San Ardo, California · 14491 days ago · 5 km deep · 45 km away
  39. 2.321 km NE of Soledad, California · 14490 days ago · 5 km deep · 59 km away
  40. 1.621 km NE of Soledad, California · 14490 days ago · 5 km deep · 59 km away
  41. 2.521 km NE of Soledad, California · 14490 days ago · 5 km deep · 59 km away
  42. 1.8Central California · 14490 days ago · 13 km deep · 87 km away
  43. 2.125 km ENE of Greenfield, California · 14490 days ago · 6 km deep · 43 km away
  44. 1.77 km NE of Tres Pinos, California · 14489 days ago · 4 km deep · 77 km away
  45. 1.917 km NW of Parkfield, California · 14488 days ago · 5 km deep · 56 km away
  46. 1.714 km N of Coalinga, California · 14487 days ago · 18 km deep · 30 km away
  47. 2.031 km SW of Three Rocks, California · 14487 days ago · 10 km deep · 25 km away
  48. 1.91 km W of Hollister, California · 14486 days ago · 4 km deep · 89 km away
  49. 1.812 km S of Los Banos, California · 14486 days ago · 2 km deep · 55 km away
  50. 1.821 km NE of Soledad, California · 14486 days ago · 4 km deep · 56 km away
  51. 2.28 km NNE of Coalinga, California · 14485 days ago · 9 km deep · 39 km away
  52. 2.110 km N of Coalinga, California · 14484 days ago · 11 km deep · 34 km away
  53. 2.89 km ENE of Coalinga, California · 14483 days ago · 9 km deep · 42 km away
  54. 2.422 km NE of Soledad, California · 14483 days ago · 3 km deep · 60 km away
  55. 1.727 km ENE of Soledad, California · 14483 days ago · 8 km deep · 49 km away
  56. 1.515 km ENE of Greenfield, California · 14482 days ago · 4 km deep · 53 km away
  57. 2.09 km N of Coalinga, California · 14482 days ago · 9 km deep · 34 km away
  58. 1.621 km NE of Soledad, California · 14482 days ago · 7 km deep · 57 km away
  59. 2.024 km ENE of Soledad, California · 14482 days ago · 2 km deep · 49 km away
  60. 1.913 km S of Tres Pinos, California · 14481 days ago · 4 km deep · 71 km away

The first 60 of 185.

Before

  1. 1.88 km S of Huron, California · 14509 days ago · 16 km deep · 57 km away
  2. 2.022 km NE of Soledad, California · 14510 days ago · 3 km deep · 54 km away
  3. 2.42 km SW of San Juan Bautista, California · 14510 days ago · 7 km deep · 99 km away
  4. 2.01 km W of Hollister, California · 14510 days ago · 5 km deep · 88 km away
  5. 2.422 km ENE of Soledad, California · 14510 days ago · 3 km deep · 53 km away
  6. 1.512 km ESE of Gilroy, California · 14510 days ago · 5 km deep · 96 km away
  7. 2.122 km ENE of Soledad, California · 14510 days ago · 3 km deep · 53 km away
  8. 2.011 km S of Tres Pinos, California · 14511 days ago · 5 km deep · 73 km away
  9. 2.711 km S of Tres Pinos, California · 14511 days ago · 6 km deep · 73 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc91430. Read Tue, Sep 22, 2026, 10:29 AM UTC.