California earthquakes

M3.3 earthquake 23 km SW of Three Rocks, California

A magnitude 3.3 earthquake struck 23 km SW of Three Rocks, California on Wed, Apr 21, 1976, 7:30 PM PST (03:30 UTC), 24 km (15 mi) below the surface.

A larger quake followed: M4.6 13 km WSW of Three Rocks, 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
3.3 (Md, duration), minor
Magnitude from
Northern California Seismic System
Local time
UTC
1976-04-22 03:30:00 UTC
Depth
24.2 km (15.1 mi), shallow
Epicenter
36.374° N, 120.606° 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 0.7 km horizontally, 3.1 km in depth
Magnitude uncertainty
±0.22
Depth from
From location
Station coverage gap
140°
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 168 in the 60 days after this one and 96 in the 30 days before it.

After

  1. 2.525 km NE of Soledad, California · 18425 days ago · 7 km deep · 54 km away
  2. 1.517 km E of Tres Pinos, California · 18425 days ago · 5 km deep · 68 km away
  3. 2.917 km SSE of Tres Pinos, California · 18423 days ago · 10 km deep · 65 km away
  4. 2.024 km WSW of Coalinga, California · 18423 days ago · 4 km deep · 34 km away
  5. 2.4Central California · 18422 days ago · 9 km deep · 87 km away
  6. 1.94 km WSW of Ridgemark, California · 18422 days ago · 9 km deep · 86 km away
  7. 3.022 km ENE of Soledad, California · 18422 days ago · 2 km deep · 47 km away
  8. 3.728 km SSW of South Dos Palos, California · 18421 days ago · 8 km deep · 43 km away
  9. 2.123 km ENE of Soledad, California · 18421 days ago · 4 km deep · 46 km away
  10. 2.64 km NW of Parkfield, California · 18421 days ago · 5 km deep · 51 km away
  11. 3.94 km NW of Parkfield, California · 18421 days ago · 5 km deep · 51 km away
  12. 1.95 km NE of Ridgemark, California · 18420 days ago · 5 km deep · 83 km away
  13. 3.24 km NW of Parkfield, California · 18420 days ago · 10 km deep · 51 km away
  14. 2.15 km SSW of Tres Pinos, California · 18420 days ago · 7 km deep · 78 km away
  15. 2.925 km ENE of Greenfield, California · 18420 days ago · 5 km deep · 35 km away
  16. 2.521 km NE of Soledad, California · 18420 days ago · 6 km deep · 57 km away
  17. 1.916 km NW of Parkfield, California · 18420 days ago · 4 km deep · 42 km away
  18. 1.85 km SSW of Tres Pinos, California · 18420 days ago · 8 km deep · 78 km away
  19. 2.922 km NE of San Lucas, California · 18420 days ago · 7 km deep · 24 km away
  20. 2.617 km NNW of San Simeon, California · 18419 days ago · 9 km deep · 91 km away
  21. 2.024 km E of Tres Pinos, California · 18419 days ago · 0 km deep · 59 km away
  22. 2.37 km NE of Ridgemark, California · 18418 days ago · 5 km deep · 84 km away
  23. 1.94 km NW of Parkfield, California · 18417 days ago · 4 km deep · 51 km away
  24. 2.45 km NW of Parkfield, California · 18417 days ago · 5 km deep · 51 km away
  25. 2.021 km NE of Soledad, California · 18416 days ago · 7 km deep · 56 km away
  26. 1.79 km NNW of Hollister, California · 18416 days ago · 4 km deep · 98 km away
  27. 2.011 km SSE of Tres Pinos, California · 18415 days ago · 8 km deep · 70 km away
  28. 1.78 km SSW of Tres Pinos, California · 18414 days ago · 3 km deep · 77 km away
  29. 2.321 km ESE of Tres Pinos, California · 18413 days ago · 5 km deep · 60 km away
  30. 2.325 km E of San Ardo, California · 18413 days ago · 0 km deep · 35 km away
  31. 2.45 km SSW of Tres Pinos, California · 18413 days ago · 9 km deep · 77 km away
  32. 3.24 km NW of Parkfield, California · 18413 days ago · 5 km deep · 51 km away
  33. 2.322 km ENE of San Lucas, California · 18413 days ago · 7 km deep · 24 km away
  34. 2.525 km NW of Parkfield, California · 18413 days ago · 1 km deep · 35 km away
  35. 3.311 km W of Huron, California · 18411 days ago · 8 km deep · 39 km away
  36. 2.734 km NW of San Simeon, California · 18410 days ago · 4 km deep · 95 km away
  37. 2.011 km ESE of Coalinga, California · 18410 days ago · 9 km deep · 45 km away
  38. 2.324 km NE of Greenfield, California · 18409 days ago · 5 km deep · 39 km away
  39. 2.221 km NE of Soledad, California · 18409 days ago · 7 km deep · 53 km away
  40. 2.112 km SSE of Tres Pinos, California · 18409 days ago · 4 km deep · 69 km away
  41. 2.17 km NE of Ridgemark, California · 18408 days ago · 4 km deep · 84 km away
  42. 1.98 km SSW of Tres Pinos, California · 18408 days ago · 3 km deep · 78 km away
  43. 1.62 km WSW of Ridgemark, California · 18408 days ago · 6 km deep · 85 km away
  44. 1.721 km NE of Soledad, California · 18407 days ago · 6 km deep · 51 km away
  45. 2.321 km NNE of Soledad, California · 18407 days ago · 8 km deep · 60 km away
  46. 1.622 km SSE of Tres Pinos, California · 18407 days ago · 6 km deep · 61 km away
  47. 3.014 km SE of Parkfield, California · 18407 days ago · 10 km deep · 68 km away
  48. 2.821 km NE of Soledad, California · 18406 days ago · 3 km deep · 54 km away
  49. 2.624 km ENE of Greenfield, California · 18406 days ago · 5 km deep · 37 km away
  50. 2.424 km NE of Greenfield, California · 18406 days ago · 2 km deep · 39 km away
  51. 2.122 km ENE of Soledad, California · 18405 days ago · 5 km deep · 46 km away
  52. 2.421 km NE of Soledad, California · 18405 days ago · 6 km deep · 51 km away
  53. 2.522 km ENE of Soledad, California · 18404 days ago · 5 km deep · 46 km away
  54. 2.524 km ENE of Soledad, California · 18404 days ago · 2 km deep · 43 km away
  55. 2.522 km NNE of Soledad, California · 18404 days ago · 1 km deep · 59 km away
  56. 2.44 km NW of Parkfield, California · 18404 days ago · 5 km deep · 51 km away
  57. 3.423 km ENE of King City, California · 18403 days ago · 4 km deep · 27 km away
  58. 2.223 km ENE of Soledad, California · 18403 days ago · 4 km deep · 46 km away
  59. 3.021 km NW of Parkfield, California · 18403 days ago · 4 km deep · 38 km away
  60. 3.26 km ESE of Tres Pinos, California · 18403 days ago · 10 km deep · 73 km away

The first 60 of 168.

Before

  1. 1.927 km NE of Soledad, California · 18425 days ago · 9 km deep · 47 km away
  2. 2.213 km NW of Lockwood, California · 18426 days ago · 8 km deep · 67 km away
  3. 2.523 km ENE of San Lucas, California · 18426 days ago · 8 km deep · 22 km away
  4. 2.411 km S of Tres Pinos, California · 18426 days ago · 4 km deep · 72 km away
  5. 2.024 km NE of King City, California · 18426 days ago · 1 km deep · 31 km away
  6. 1.817 km NW of Parkfield, California · 18427 days ago · 4 km deep · 40 km away
  7. 3.025 km NE of Greenfield, California · 18427 days ago · 1 km deep · 37 km away
  8. 3.221 km SSE of Tres Pinos, California · 18427 days ago · 6 km deep · 62 km away
  9. 2.621 km NE of Soledad, California · 18428 days ago · 7 km deep · 53 km away
  10. 1.821 km SSE of Tres Pinos, California · 18428 days ago · 6 km deep · 61 km away
  11. 3.07 km NNW of Hollister, California · 18428 days ago · 7 km deep · 95 km away
  12. 1.67 km NNW of Hollister, California · 18428 days ago · 7 km deep · 95 km away
  13. 1.7Central California · 18428 days ago · 3 km deep · 80 km away
  14. 2.121 km NE of Soledad, California · 18428 days ago · 2 km deep · 54 km away
  15. 1.826 km NE of Soledad, California · 18429 days ago · 8 km deep · 48 km away
  16. 1.622 km NNE of Soledad, California · 18430 days ago · 5 km deep · 60 km away
  17. 1.6Central California · 18430 days ago · 0 km deep · 41 km away
  18. 2.329 km W of Three Rocks, California · 18430 days ago · 9 km deep · 21 km away
  19. 4.228 km W of Three Rocks, California · 18430 days ago · 11 km deep · 21 km away
  20. 1.910 km S of Tres Pinos, California · 18430 days ago · 7 km deep · 75 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1029489. Read Fri, Oct 2, 2026, 12:28 AM UTC.