California earthquakes

M4.4 earthquake 7 km S of Three Rocks, California

A magnitude 4.4 earthquake struck 7 km S of Three Rocks, California on Sat, Aug 2, 1975, 8:30 PM PDT (03:30 UTC), 17 km (11 mi) below the surface.

A larger quake followed: M4.9 7 km SW of Three Rocks, 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
4.4 (Md, duration), light
Magnitude from
Northern California Seismic System
Local time
UTC
1975-08-03 03:30:33 UTC
Depth
16.9 km (10.5 mi), shallow
Epicenter
36.431° N, 120.393° 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 0.5 km horizontally, 0.9 km in depth
Magnitude uncertainty
±0.66
Depth from
From location
Station coverage gap
89°
Stations used
35

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 71 in the 30 days before it.

After

  1. 3.06 km S of Three Rocks, California · 18690 days ago · 11 km deep · 2 km away
  2. 4.07 km S of Three Rocks, California · 18690 days ago · 13 km deep · 0 km away
  3. 3.95 km S of Three Rocks, California · 18690 days ago · 10 km deep · 2 km away
  4. 4.27 km S of Three Rocks, California · 18690 days ago · 17 km deep · 1 km away
  5. 3.76 km S of Three Rocks, California · 18690 days ago · 17 km deep · 1 km away
  6. 3.95 km S of Three Rocks, California · 18690 days ago · 14 km deep · 3 km away
  7. 4.97 km SW of Three Rocks, California · 18690 days ago · 17 km deep · 5 km away
  8. 4.14 km SW of Cantua Creek, California · 18690 days ago · 5 km deep · 6 km away
  9. 2.94 km S of Three Rocks, California · 18690 days ago · 12 km deep · 4 km away
  10. 3.63 km S of Three Rocks, California · 18690 days ago · 10 km deep · 4 km away
  11. 4.63 km SSW of Three Rocks, California · 18690 days ago · 11 km deep · 4 km away
  12. 3.08 km SSE of Three Rocks, California · 18690 days ago · 10 km deep · 2 km away
  13. 3.96 km S of Three Rocks, California · 18690 days ago · 9 km deep · 2 km away
  14. 3.65 km SSE of Three Rocks, California · 18690 days ago · 9 km deep · 3 km away
  15. 3.62 km SSE of Three Rocks, California · 18690 days ago · 8 km deep · 5 km away
  16. 4.15 km S of Three Rocks, California · 18690 days ago · 7 km deep · 2 km away
  17. 3.68 km SSE of Three Rocks, California · 18690 days ago · 9 km deep · 2 km away
  18. 3.58 km S of Three Rocks, California · 18690 days ago · 10 km deep · 1 km away
  19. 3.25 km SSE of Three Rocks, California · 18690 days ago · 11 km deep · 3 km away
  20. 3.57 km S of Three Rocks, California · 18690 days ago · 15 km deep · 1 km away
  21. 2.4Central California · 18690 days ago · 4 km deep · 85 km away
  22. 1.613 km S of Tres Pinos, California · 18690 days ago · 5 km deep · 85 km away
  23. 2.98 km SSE of Three Rocks, California · 18690 days ago · 3 km deep · 3 km away
  24. 3.07 km S of Three Rocks, California · 18690 days ago · 18 km deep · 1 km away
  25. 3.5Central California · 18690 days ago · 11 km deep · 1 km away
  26. 3.18 km S of Three Rocks, California · 18690 days ago · 15 km deep · 0 km away
  27. 3.84 km S of Three Rocks, California · 18690 days ago · 9 km deep · 3 km away
  28. 3.58 km SSE of Three Rocks, California · 18690 days ago · 17 km deep · 3 km away
  29. 4.46 km S of Three Rocks, California · 18690 days ago · 11 km deep · 2 km away
  30. 3.06 km S of Three Rocks, California · 18689 days ago · 11 km deep · 2 km away
  31. 2.331 km ENE of Soledad, California · 18689 days ago · 7 km deep · 59 km away
  32. 2.224 km ENE of Greenfield, California · 18689 days ago · 5 km deep · 55 km away
  33. 3.224 km ENE of Greenfield, California · 18689 days ago · 5 km deep · 56 km away
  34. 2.42 km SW of Ridgemark, California · 18689 days ago · 8 km deep · 98 km away
  35. 2.122 km NE of San Lucas, California · 18689 days ago · 8 km deep · 45 km away
  36. 3.58 km S of Three Rocks, California · 18689 days ago · 10 km deep · 1 km away
  37. 3.47 km S of Three Rocks, California · 18689 days ago · 19 km deep · 0 km away
  38. 3.13 km SE of Three Rocks, California · 18689 days ago · 2 km deep · 6 km away
  39. 3.18 km S of Cantua Creek, California · 18689 days ago · 13 km deep · 6 km away
  40. 3.037 km W of Three Rocks, California · 18689 days ago · 1 km deep · 39 km away
  41. 3.120 km S of Avenal, California · 18689 days ago · 22 km deep · 71 km away
  42. 2.83 km SSE of Three Rocks, California · 18689 days ago · 7 km deep · 5 km away
  43. 3.621 km SSE of Tres Pinos, California · 18689 days ago · 4 km deep · 77 km away
  44. 1.82 km SW of Ridgemark, California · 18689 days ago · 8 km deep · 98 km away
  45. 3.29 km SSE of Three Rocks, California · 18688 days ago · 16 km deep · 3 km away
  46. 3.16 km S of Three Rocks, California · 18688 days ago · 14 km deep · 2 km away
  47. 2.527 km NE of Soledad, California · 18687 days ago · 9 km deep · 65 km away
  48. 2.022 km NNE of Soledad, California · 18687 days ago · 5 km deep · 76 km away
  49. 2.35 km SSW of Tres Pinos, California · 18687 days ago · 8 km deep · 92 km away
  50. 2.525 km NNE of King City, California · 18687 days ago · 1 km deep · 52 km away
  51. 2.541 km W of Three Rocks, California · 18687 days ago · 4 km deep · 43 km away
  52. 2.93 km SSW of Cantua Creek, California · 18686 days ago · 9 km deep · 7 km away
  53. 2.122 km ENE of Soledad, California · 18686 days ago · 2 km deep · 65 km away
  54. 3.322 km ENE of San Ardo, California · 18686 days ago · 3 km deep · 46 km away
  55. 3.68 km S of Three Rocks, California · 18686 days ago · 11 km deep · 1 km away
  56. 3.18 km S of Three Rocks, California · 18686 days ago · 16 km deep · 1 km away
  57. 3.98 km S of Three Rocks, California · 18685 days ago · 15 km deep · 1 km away
  58. 4.0Central California · 18684 days ago · 11 km deep · 4 km away
  59. 2.612 km S of Tres Pinos, California · 18684 days ago · 2 km deep · 86 km away
  60. 2.717 km SSE of Tres Pinos, California · 18684 days ago · 6 km deep · 80 km away

The first 60 of at least 199.

Before

  1. 4.58 km S of Three Rocks, California · 18690 days ago · 17 km deep · 1 km away
  2. 3.111 km NW of Parkfield, California · 18693 days ago · 11 km deep · 53 km away
  3. 3.09 km SSW of Tres Pinos, California · 18693 days ago · 3 km deep · 90 km away
  4. 3.33 km SE of San Ardo, California · 18694 days ago · 13 km deep · 65 km away
  5. 2.51 km E of Ridgemark, California · 18695 days ago · 7 km deep · 95 km away
  6. 2.323 km NE of King City, California · 18696 days ago · 7 km deep · 52 km away
  7. 1.528 km ESE of Tres Pinos, California · 18696 days ago · 0 km deep · 65 km away
  8. 2.07 km NNW of San Miguel, California · 18696 days ago · 6 km deep · 75 km away
  9. 3.118 km SSE of Tres Pinos, California · 18697 days ago · 10 km deep · 80 km away
  10. 1.70 km SW of Parkfield, California · 18697 days ago · 11 km deep · 60 km away
  11. 3.611 km NW of Parkfield, California · 18698 days ago · 11 km deep · 53 km away
  12. 1.934 km ENE of Soledad, California · 18698 days ago · 5 km deep · 54 km away
  13. 3.122 km W of Coalinga, California · 18698 days ago · 7 km deep · 37 km away
  14. 2.09 km ENE of Tres Pinos, California · 18698 days ago · 7 km deep · 86 km away
  15. 2.823 km ENE of Soledad, California · 18699 days ago · 7 km deep · 61 km away
  16. 2.421 km NE of Soledad, California · 18699 days ago · 6 km deep · 69 km away
  17. 2.218 km SSE of Tres Pinos, California · 18700 days ago · 7 km deep · 80 km away
  18. 3.118 km SSE of Tres Pinos, California · 18700 days ago · 6 km deep · 80 km away
  19. 2.210 km S of Tres Pinos, California · 18700 days ago · 7 km deep · 90 km away
  20. 2.827 km SE of Tres Pinos, California · 18700 days ago · 6 km deep · 65 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1025192. Read Sun, Oct 4, 2026, 9:35 AM UTC.