California earthquakes

M3.0 earthquake Central California

A magnitude 3.0 earthquake struck in Central California on Mon, Apr 28, 1975, 3:37 AM PDT (10:37 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.7 12 km NW of Parkfield, 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
3.0 (md), minor
Local time
UTC
1975-04-28 10:37:06 UTC
Depth
3.1 km (1.9 mi), shallow
Epicenter
36.549° N, 121.121° 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, 0.6 km in depth
Magnitude uncertainty
±0.68
Depth from
From location
Station coverage gap
70°
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: 194 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 2.521 km ENE of San Lucas, California · 18752 days ago · 3 km deep · 45 km away
  2. 3.712 km NW of Parkfield, California · 18751 days ago · 10 km deep · 83 km away
  3. 3.022 km ENE of San Lucas, California · 18751 days ago · 8 km deep · 47 km away
  4. 1.88 km NW of Hollister, California · 18751 days ago · 3 km deep · 51 km away
  5. 3.921 km NNE of Soledad, California · 18751 days ago · 7 km deep · 8 km away
  6. 2.722 km ENE of San Lucas, California · 18751 days ago · 8 km deep · 47 km away
  7. 2.010 km ESE of Gilroy, California · 18751 days ago · 3 km deep · 56 km away
  8. 3.314 km SSE of Tres Pinos, California · 18751 days ago · 3 km deep · 19 km away
  9. 1.79 km SW of San Martin, California · 18751 days ago · 8 km deep · 72 km away
  10. 2.411 km NW of Parkfield, California · 18751 days ago · 10 km deep · 83 km away
  11. 2.912 km NW of Parkfield, California · 18751 days ago · 11 km deep · 83 km away
  12. 1.712 km NW of Parkfield, California · 18750 days ago · 11 km deep · 83 km away
  13. 2.716 km SE of Tres Pinos, California · 18750 days ago · 11 km deep · 18 km away
  14. 3.723 km NE of San Ardo, California · 18750 days ago · 7 km deep · 51 km away
  15. 1.921 km NE of Soledad, California · 18750 days ago · 8 km deep · 2 km away
  16. 3.321 km NE of Soledad, California · 18750 days ago · 6 km deep · 1 km away
  17. 2.612 km NW of Parkfield, California · 18750 days ago · 11 km deep · 83 km away
  18. 2.624 km NE of Greenfield, California · 18749 days ago · 5 km deep · 12 km away
  19. 2.39 km NW of Hollister, California · 18749 days ago · 3 km deep · 52 km away
  20. 2.013 km NW of Parkfield, California · 18749 days ago · 3 km deep · 82 km away
  21. 4.37 km SSE of Gustine, California · 18749 days ago · 1 km deep · 73 km away
  22. 3.912 km NW of Parkfield, California · 18748 days ago · 11 km deep · 83 km away
  23. 3.021 km NE of Soledad, California · 18748 days ago · 2 km deep · 4 km away
  24. 2.719 km SSW of Los Banos, California · 18748 days ago · 2 km deep · 42 km away
  25. 3.29 km NW of Hollister, California · 18747 days ago · 6 km deep · 51 km away
  26. 2.49 km NW of Hollister, California · 18747 days ago · 4 km deep · 51 km away
  27. 3.78 km SSW of Tres Pinos, California · 18747 days ago · 3 km deep · 28 km away
  28. 2.39 km NE of San Juan Bautista, California · 18747 days ago · 3 km deep · 51 km away
  29. 1.525 km SE of Tres Pinos, California · 18747 days ago · 7 km deep · 8 km away
  30. 2.717 km NW of Parkfield, California · 18747 days ago · 2 km deep · 77 km away
  31. 3.65 km SSW of Gilroy, California · 18746 days ago · 7 km deep · 63 km away
  32. 2.620 km ENE of San Lucas, California · 18746 days ago · 6 km deep · 47 km away
  33. 2.720 km ENE of San Lucas, California · 18746 days ago · 6 km deep · 46 km away
  34. 2.25 km SSW of Gilroy, California · 18746 days ago · 7 km deep · 63 km away
  35. 1.77 km NE of Interlaken, California · 18745 days ago · 2 km deep · 69 km away
  36. 2.736 km NE of San Lucas, California · 18745 days ago · 9 km deep · 35 km away
  37. 1.815 km SSE of Tres Pinos, California · 18745 days ago · 5 km deep · 17 km away
  38. 3.624 km NE of Greenfield, California · 18745 days ago · 7 km deep · 10 km away
  39. 3.021 km NE of Soledad, California · 18745 days ago · 2 km deep · 3 km away
  40. 2.58 km NE of San Juan Bautista, California · 18745 days ago · 4 km deep · 52 km away
  41. 2.010 km NNW of Hollister, California · 18745 days ago · 5 km deep · 53 km away
  42. 2.45 km WNW of San Juan Bautista, California · 18744 days ago · 6 km deep · 55 km away
  43. 1.722 km NE of Soledad, California · 18743 days ago · 9 km deep · 0 km away
  44. 2.521 km NE of Soledad, California · 18743 days ago · 5 km deep · 5 km away
  45. 2.89 km NW of Hollister, California · 18743 days ago · 5 km deep · 51 km away
  46. 2.014 km E of Seven Trees, California · 18742 days ago · 2 km deep · 97 km away
  47. 2.27 km N of Hollister, California · 18741 days ago · 4 km deep · 49 km away
  48. 1.627 km NE of Soledad, California · 18740 days ago · 8 km deep · 5 km away
  49. 2.621 km ENE of San Ardo, California · 18740 days ago · 3 km deep · 63 km away
  50. 2.018 km SSE of Tres Pinos, California · 18740 days ago · 5 km deep · 15 km away
  51. 2.619 km E of San Ardo, California · 18740 days ago · 0 km deep · 68 km away
  52. 2.25 km WSW of Gilroy, California · 18740 days ago · 3 km deep · 67 km away
  53. 2.64 km WSW of Gilroy, California · 18740 days ago · 6 km deep · 66 km away
  54. 2.19 km NW of Hollister, California · 18740 days ago · 5 km deep · 51 km away
  55. 2.323 km ENE of San Lucas, California · 18740 days ago · 5 km deep · 47 km away
  56. 2.111 km NNW of Hollister, California · 18739 days ago · 6 km deep · 53 km away
  57. 2.18 km NE of San Juan Bautista, California · 18739 days ago · 5 km deep · 51 km away
  58. 2.821 km NE of Soledad, California · 18739 days ago · 3 km deep · 5 km away
  59. 2.422 km NE of King City, California · 18739 days ago · 5 km deep · 28 km away
  60. 3.024 km ENE of Greenfield, California · 18739 days ago · 3 km deep · 15 km away

The first 60 of 194.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1023683. Read Tue, Sep 22, 2026, 8:48 PM UTC.