California earthquakes

M3.9 earthquake 30 km NE of Soledad, California

A magnitude 3.9 earthquake struck 30 km NE of Soledad, California on Sat, Dec 20, 1975, 7:24 PM PST (03:24 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M4.0 5 km ENE of Tres Pinos, 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
3.9 (md), minor
Local time
UTC
1975-12-21 03:24:51 UTC
Depth
6.3 km (3.9 mi), shallow
Epicenter
36.593° N, 121.058° 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 0.4 km horizontally, 0.9 km in depth
Magnitude uncertainty
±0.46
Depth from
From location
Station coverage gap
40°
Stations used
45

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 195 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 2.011 km SE of Coalinga, California · 18513 days ago · 9 km deep · 92 km away
  2. 2.612 km ESE of Coalinga, California · 18513 days ago · 9 km deep · 92 km away
  3. 2.510 km NW of Avenal, California · 18513 days ago · 9 km deep · 96 km away
  4. 3.212 km ESE of Coalinga, California · 18513 days ago · 9 km deep · 92 km away
  5. 2.02 km ENE of Del Monte Forest, California · 18513 days ago · 5 km deep · 77 km away
  6. 3.411 km ESE of Coalinga, California · 18513 days ago · 11 km deep · 92 km away
  7. 2.312 km ESE of Coalinga, California · 18513 days ago · 8 km deep · 93 km away
  8. 1.711 km ESE of Coalinga, California · 18513 days ago · 9 km deep · 92 km away
  9. 3.611 km ESE of Coalinga, California · 18513 days ago · 11 km deep · 92 km away
  10. 1.911 km ESE of Coalinga, California · 18513 days ago · 9 km deep · 92 km away
  11. 1.68 km NE of San Juan Bautista, California · 18513 days ago · 3 km deep · 51 km away
  12. 2.212 km ESE of Coalinga, California · 18513 days ago · 10 km deep · 92 km away
  13. 3.121 km NE of Soledad, California · 18513 days ago · 2 km deep · 10 km away
  14. 2.318 km W of Volta, California · 18513 days ago · 7 km deep · 53 km away
  15. 1.911 km ESE of Coalinga, California · 18513 days ago · 10 km deep · 92 km away
  16. 1.711 km ESE of Coalinga, California · 18513 days ago · 10 km deep · 92 km away
  17. 1.92 km SW of Monterey, California · 18512 days ago · 6 km deep · 76 km away
  18. 1.81 km ENE of Del Monte Forest, California · 18512 days ago · 7 km deep · 78 km away
  19. 1.92 km S of Ridgemark, California · 18512 days ago · 5 km deep · 35 km away
  20. 3.012 km ESE of Coalinga, California · 18512 days ago · 9 km deep · 92 km away
  21. 2.110 km ESE of Coalinga, California · 18512 days ago · 9 km deep · 91 km away
  22. 1.510 km SE of Coalinga, California · 18512 days ago · 9 km deep · 91 km away
  23. 2.612 km NNW of Avenal, California · 18512 days ago · 5 km deep · 94 km away
  24. 3.312 km ESE of Coalinga, California · 18512 days ago · 9 km deep · 92 km away
  25. 1.811 km ESE of Coalinga, California · 18512 days ago · 8 km deep · 91 km away
  26. 1.710 km SE of Coalinga, California · 18512 days ago · 9 km deep · 91 km away
  27. 2.621 km NE of Soledad, California · 18512 days ago · 2 km deep · 9 km away
  28. 2.44 km ESE of Interlaken, California · 18512 days ago · 10 km deep · 68 km away
  29. 1.710 km SE of Coalinga, California · 18512 days ago · 9 km deep · 91 km away
  30. 1.810 km SE of Coalinga, California · 18512 days ago · 9 km deep · 91 km away
  31. 2.210 km SE of Coalinga, California · 18511 days ago · 9 km deep · 91 km away
  32. 3.711 km ESE of Coalinga, California · 18511 days ago · 9 km deep · 92 km away
  33. 1.510 km SE of Coalinga, California · 18511 days ago · 9 km deep · 91 km away
  34. 1.711 km NNW of Avenal, California · 18511 days ago · 7 km deep · 95 km away
  35. 1.817 km E of Tres Pinos, California · 18511 days ago · 4 km deep · 25 km away
  36. 2.224 km ENE of Soledad, California · 18511 days ago · 5 km deep · 8 km away
  37. 1.835 km WSW of King City, California · 18511 days ago · 13 km deep · 70 km away
  38. 2.022 km ENE of Soledad, California · 18510 days ago · 4 km deep · 10 km away
  39. 1.6Central California · 18510 days ago · 9 km deep · 90 km away
  40. 2.09 km SE of Coalinga, California · 18510 days ago · 9 km deep · 90 km away
  41. 2.124 km NE of Greenfield, California · 18510 days ago · 4 km deep · 12 km away
  42. 2.51 km SSW of Hollister, California · 18510 days ago · 8 km deep · 41 km away
  43. 2.015 km NW of Parkfield, California · 18510 days ago · 6 km deep · 80 km away
  44. 1.827 km NE of Soledad, California · 18510 days ago · 9 km deep · 3 km away
  45. 1.7Central California · 18510 days ago · 9 km deep · 92 km away
  46. 1.710 km ESE of Coalinga, California · 18510 days ago · 10 km deep · 91 km away
  47. 2.727 km NNE of Hollister, California · 18510 days ago · 5 km deep · 55 km away
  48. 2.82 km SSW of Hollister, California · 18509 days ago · 8 km deep · 41 km away
  49. 2.210 km SE of Coalinga, California · 18509 days ago · 9 km deep · 91 km away
  50. 2.011 km SE of Coalinga, California · 18509 days ago · 8 km deep · 91 km away
  51. 1.82 km SSW of Monterey, California · 18509 days ago · 5 km deep · 75 km away
  52. 2.514 km N of Morgan Hill, California · 18509 days ago · 6 km deep · 90 km away
  53. 2.038 km NE of King City, California · 18508 days ago · 19 km deep · 24 km away
  54. 2.110 km SE of Coalinga, California · 18508 days ago · 9 km deep · 91 km away
  55. 1.910 km NNW of Hollister, California · 18508 days ago · 5 km deep · 52 km away
  56. 2.112 km ESE of Coalinga, California · 18508 days ago · 10 km deep · 93 km away
  57. 1.69 km NE of San Juan Bautista, California · 18507 days ago · 4 km deep · 52 km away
  58. 1.77 km ENE of Morgan Hill, California · 18507 days ago · 4 km deep · 77 km away
  59. 2.625 km ENE of Greenfield, California · 18507 days ago · 1 km deep · 19 km away
  60. 2.825 km NE of Greenfield, California · 18507 days ago · 2 km deep · 17 km away

The first 60 of 195.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1028009. Read Tue, Sep 22, 2026, 9:16 AM UTC.