California earthquakes

M2.4 earthquake 19 km S of Three Rocks, California

A magnitude 2.4 earthquake struck 19 km S of Three Rocks, California on Thu, Oct 23, 1986, 9:50 AM PDT (16:50 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M2.5 5 km NE of Tres Pinos, California. This one was a foreshock.

Coalinga 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
2.4 (md), micro
Local time
UTC
1986-10-23 16:50:43 UTC
Depth
9.7 km (6.0 mi), shallow
Epicenter
36.324° N, 120.381° 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 0.2 km horizontally, 0.2 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
106°
Stations used
29

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 146 in the 60 days after this one and 50 in the 30 days before it.

After

  1. 1.519 km S of Three Rocks, California · 14579 days ago · 10 km deep · 0 km away
  2. 2.120 km S of Three Rocks, California · 14578 days ago · 10 km deep · 0 km away
  3. 1.96 km N of Coalinga, California · 14577 days ago · 8 km deep · 14 km away
  4. 1.822 km NE of Soledad, California · 14577 days ago · 3 km deep · 77 km away
  5. 1.724 km NE of Greenfield, California · 14577 days ago · 6 km deep · 60 km away
  6. 1.68 km ENE of Tres Pinos, California · 14577 days ago · 8 km deep · 93 km away
  7. 2.214 km WNW of Huron, California · 14577 days ago · 12 km deep · 14 km away
  8. 1.88 km ENE of Tres Pinos, California · 14576 days ago · 8 km deep · 93 km away
  9. 1.98 km ENE of Coalinga, California · 14576 days ago · 10 km deep · 20 km away
  10. 1.96km SSE of Huron, CA · 14575 days ago · 5 km deep · 34 km away
  11. 1.910 km SSW of Huron, California · 14575 days ago · 7 km deep · 30 km away
  12. 1.54 km NNE of Tres Pinos, California · 14574 days ago · 5 km deep · 99 km away
  13. 1.728 km SW of South Dos Palos, California · 14570 days ago · 7 km deep · 65 km away
  14. 2.39 km NW of Kettleman City, California · 14569 days ago · 8 km deep · 42 km away
  15. 1.616 km SSE of Tres Pinos, California · 14568 days ago · 3 km deep · 87 km away
  16. 2.326 km NE of San Lucas, California · 14568 days ago · 8 km deep · 39 km away
  17. 1.822 km NNE of Soledad, California · 14567 days ago · 6 km deep · 80 km away
  18. 2.55 km NE of Tres Pinos, California · 14567 days ago · 9 km deep · 97 km away
  19. 1.911 km E of Coalinga, California · 14565 days ago · 9 km deep · 26 km away
  20. 2.04 km NNE of Cantua Creek, California · 14565 days ago · 23 km deep · 25 km away
  21. 1.86 km NNW of Greenfield, California · 14564 days ago · 5 km deep · 79 km away
  22. 1.828 km NE of Soledad, California · 14564 days ago · 9 km deep · 70 km away
  23. 1.65 km SE of Tres Pinos, California · 14564 days ago · 8 km deep · 93 km away
  24. 1.919 km ESE of Tres Pinos, California · 14564 days ago · 1 km deep · 79 km away
  25. 1.711 km E of Coalinga, California · 14564 days ago · 11 km deep · 24 km away
  26. 1.63 km NE of Tres Pinos, California · 14563 days ago · 8 km deep · 97 km away
  27. 2.125 km ENE of Greenfield, California · 14562 days ago · 1 km deep · 58 km away
  28. 1.84 km ENE of Tres Pinos, California · 14562 days ago · 8 km deep · 96 km away
  29. 1.511 km NNW of Coalinga, California · 14561 days ago · 7 km deep · 9 km away
  30. 2.221 km WNW of Coalinga, California · 14561 days ago · 7 km deep · 24 km away
  31. 1.76 km NE of Coalinga, California · 14560 days ago · 9 km deep · 18 km away
  32. 1.510 km NNE of Cayucos, California · 14560 days ago · 7 km deep · 98 km away
  33. 2.018 km SSE of Tres Pinos, California · 14560 days ago · 5 km deep · 85 km away
  34. 2.014 km N of Coalinga, California · 14560 days ago · 8 km deep · 8 km away
  35. 3.110 km SSW of Huron, California · 14558 days ago · 8 km deep · 30 km away
  36. 1.910 km SSW of Huron, California · 14558 days ago · 8 km deep · 30 km away
  37. 1.910 km SW of Huron, California · 14558 days ago · 4 km deep · 29 km away
  38. 1.726 km ENE of Greenfield, California · 14558 days ago · 8 km deep · 57 km away
  39. 1.63 km SE of San Ardo, California · 14558 days ago · 9 km deep · 58 km away
  40. 2.112 km SSE of Tres Pinos, California · 14558 days ago · 5 km deep · 90 km away
  41. 1.722 km ENE of Soledad, California · 14558 days ago · 9 km deep · 68 km away
  42. 2.67 km ENE of Coalinga, California · 14557 days ago · 8 km deep · 19 km away
  43. 1.522 km NE of San Ardo, California · 14557 days ago · 3 km deep · 37 km away
  44. 1.810 km N of Coalinga, California · 14557 days ago · 2 km deep · 11 km away
  45. 1.816 km NNW of Coalinga, California · 14555 days ago · 9 km deep · 5 km away
  46. 2.75 km NNE of Tres Pinos, California · 14555 days ago · 7 km deep · 100 km away
  47. 2.28 km SW of Huron, California · 14554 days ago · 5 km deep · 26 km away
  48. 1.58 km N of Avenal, California · 14553 days ago · 6 km deep · 35 km away
  49. 2.923 km ENE of San Lucas, California · 14553 days ago · 8 km deep · 39 km away
  50. 2.522 km NE of Soledad, California · 14553 days ago · 3 km deep · 77 km away
  51. 1.85 km NW of Parkfield, California · 14552 days ago · 4 km deep · 45 km away
  52. 3.015 km SSE of Tres Pinos, California · 14551 days ago · 3 km deep · 87 km away
  53. 2.524 km NE of Greenfield, California · 14549 days ago · 0 km deep · 60 km away
  54. 1.53 km ENE of Tres Pinos, California · 14549 days ago · 8 km deep · 97 km away
  55. 1.725 km NE of Greenfield, California · 14549 days ago · 1 km deep · 60 km away
  56. 3.211 km SSE of Huron, California · 14549 days ago · 8 km deep · 38 km away
  57. 2.810 km SSE of Huron, California · 14548 days ago · 8 km deep · 38 km away
  58. 2.312 km NNW of Kettleman City, California · 14548 days ago · 8 km deep · 40 km away
  59. 1.69 km NE of Avenal, California · 14548 days ago · 7 km deep · 40 km away
  60. 2.610 km NNE of Avenal, California · 14548 days ago · 7 km deep · 38 km away

The first 60 of 146.

Before

  1. 2.114 km N of Coalinga, California · 14579 days ago · 9 km deep · 6 km away
  2. 1.9Central California · 14579 days ago · 14 km deep · 16 km away
  3. 1.623 km ENE of San Lucas, California · 14580 days ago · 6 km deep · 39 km away
  4. 2.825 km ENE of San Ardo, California · 14580 days ago · 4 km deep · 35 km away
  5. 2.522 km NE of San Ardo, California · 14580 days ago · 7 km deep · 36 km away
  6. 1.913 km NNW of Coalinga, California · 14580 days ago · 7 km deep · 8 km away
  7. 3.34 km SW of Tres Pinos, California · 14581 days ago · 10 km deep · 100 km away
  8. 2.421 km NE of Soledad, California · 14582 days ago · 2 km deep · 75 km away
  9. 1.58 km ENE of Tres Pinos, California · 14583 days ago · 8 km deep · 93 km away
  10. 2.1Central California · 14584 days ago · 7 km deep · 30 km away
  11. 1.95 km WNW of Tranquillity, California · 14584 days ago · 5 km deep · 39 km away
  12. 2.126 km NE of Greenfield, California · 14584 days ago · 6 km deep · 61 km away
  13. 1.515 km NNW of Coalinga, California · 14585 days ago · 8 km deep · 6 km away
  14. 1.53 km NW of Avenal, California · 14585 days ago · 13 km deep · 39 km away
  15. 1.622 km NE of Soledad, California · 14585 days ago · 5 km deep · 71 km away
  16. 1.627 km NE of San Ardo, California · 14586 days ago · 5 km deep · 31 km away
  17. 1.821 km NE of Soledad, California · 14587 days ago · 2 km deep · 73 km away
  18. 2.724 km NE of Greenfield, California · 14588 days ago · 2 km deep · 62 km away
  19. 2.221 km NE of Soledad, California · 14588 days ago · 6 km deep · 73 km away
  20. 1.524 km NE of Greenfield, California · 14588 days ago · 5 km deep · 62 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc86340 (also filed as ci711589). Read Tue, Sep 22, 2026, 7:03 AM UTC.