California earthquakes

M2.1 earthquake 33 km W of Three Rocks, California

A magnitude 2.1 earthquake struck 33 km W of Three Rocks, California on Sun, Feb 5, 1978, 2:55 AM PST (10:55 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M3.1 11km N of Avenal, CA. 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
2.1 (md), micro
Local time
UTC
1978-02-05 10:55:18 UTC
Depth
8.1 km (5.0 mi), shallow
Epicenter
36.523° N, 120.769° 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 0.6 km horizontally, 1.5 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
169°
Stations used
14

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 113 in the 60 days after this one and 66 in the 30 days before it.

After

  1. 2.121 km NE of Soledad, California · 17761 days ago · 7 km deep · 33 km away
  2. 3.111km N of Avenal, CA · 17761 days ago · 6 km deep · 75 km away
  3. 2.16 km NNW of Avenal, California · 17761 days ago · 13 km deep · 76 km away
  4. 2.37 km NNW of Avenal, California · 17761 days ago · 12 km deep · 75 km away
  5. 2.96 km WSW of Gilroy, California · 17761 days ago · 5 km deep · 92 km away
  6. 1.97 km NNW of Avenal, California · 17760 days ago · 13 km deep · 75 km away
  7. 2.08 km N of Avenal, California · 17760 days ago · 14 km deep · 75 km away
  8. 1.714 km SW of Soledad, California · 17759 days ago · 12 km deep · 63 km away
  9. 1.913 km NW of Avenal, California · 17759 days ago · 13 km deep · 68 km away
  10. 3.04 km ESE of Interlaken, California · 17758 days ago · 12 km deep · 94 km away
  11. 1.54 km ESE of Interlaken, California · 17758 days ago · 11 km deep · 94 km away
  12. 2.34 km WNW of San Juan Bautista, California · 17758 days ago · 7 km deep · 82 km away
  13. 2.14 km NW of Parkfield, California · 17758 days ago · 4 km deep · 72 km away
  14. 2.07 km ENE of Interlaken, California · 17757 days ago · 0 km deep · 94 km away
  15. 1.915 km SW of Soledad, California · 17757 days ago · 9 km deep · 63 km away
  16. 1.920 km SSE of Tres Pinos, California · 17757 days ago · 5 km deep · 42 km away
  17. 1.811 km SW of Soledad, California · 17757 days ago · 6 km deep · 61 km away
  18. 1.523 km E of Tres Pinos, California · 17757 days ago · 2 km deep · 36 km away
  19. 1.620 km SSE of Tres Pinos, California · 17756 days ago · 5 km deep · 43 km away
  20. 1.85 km SW of Gilroy, California · 17754 days ago · 3 km deep · 90 km away
  21. 1.629 km ENE of Soledad, California · 17753 days ago · 9 km deep · 24 km away
  22. 1.75 km NW of Parkfield, California · 17752 days ago · 5 km deep · 71 km away
  23. 1.825 km NE of King City, California · 17751 days ago · 2 km deep · 22 km away
  24. 2.425 km WSW of Coalinga, California · 17750 days ago · 2 km deep · 52 km away
  25. 2.320 km SSE of Tres Pinos, California · 17749 days ago · 5 km deep · 42 km away
  26. 1.712 km NW of Parkfield, California · 17748 days ago · 9 km deep · 64 km away
  27. 1.510 km NNW of Hollister, California · 17748 days ago · 7 km deep · 76 km away
  28. 3.016 km SSE of Tres Pinos, California · 17748 days ago · 3 km deep · 47 km away
  29. 1.55 km SW of Ridgemark, California · 17748 days ago · 9 km deep · 65 km away
  30. 1.624 km NE of Greenfield, California · 17747 days ago · 7 km deep · 27 km away
  31. 1.6Northern California · 17747 days ago · 5 km deep · 86 km away
  32. 2.2Central California · 17747 days ago · 10 km deep · 52 km away
  33. 1.97 km SE of Parkfield, California · 17746 days ago · 5 km deep · 83 km away
  34. 3.110 km NNE of Cambria, California · 17746 days ago · 12 km deep · 100 km away
  35. 1.65 km SSE of Parkfield, California · 17745 days ago · 4 km deep · 81 km away
  36. 1.821 km NNE of Soledad, California · 17745 days ago · 8 km deep · 39 km away
  37. 1.625 km SE of Tres Pinos, California · 17745 days ago · 7 km deep · 33 km away
  38. 1.722 km NE of San Ardo, California · 17745 days ago · 7 km deep · 38 km away
  39. 2.827 km W of Three Rocks, California · 17744 days ago · 8 km deep · 6 km away
  40. 1.54 km SE of Tres Pinos, California · 17743 days ago · 8 km deep · 53 km away
  41. 2.423 km NNE of San Lucas, California · 17743 days ago · 5 km deep · 26 km away
  42. 2.78 km SSE of San Juan Bautista, California · 17742 days ago · 7 km deep · 71 km away
  43. 1.737 km SSW of South Dos Palos, California · 17742 days ago · 7 km deep · 18 km away
  44. 1.737 km SSW of South Dos Palos, California · 17742 days ago · 6 km deep · 18 km away
  45. 2.015 km NW of Parkfield, California · 17742 days ago · 5 km deep · 61 km away
  46. 2.51 km NE of Hollister, California · 17741 days ago · 8 km deep · 67 km away
  47. 1.61 km ENE of Hollister, California · 17741 days ago · 8 km deep · 66 km away
  48. 1.7Central California · 17740 days ago · 11 km deep · 63 km away
  49. 2.0Central California · 17740 days ago · 7 km deep · 34 km away
  50. 1.7Central California · 17739 days ago · 5 km deep · 75 km away
  51. 2.4Central California · 17739 days ago · 8 km deep · 26 km away
  52. 2.723 km ENE of San Lucas, California · 17738 days ago · 8 km deep · 35 km away
  53. 2.42 km WSW of San Juan Bautista, California · 17738 days ago · 7 km deep · 79 km away
  54. 2.612 km NW of Avenal, California · 17738 days ago · 9 km deep · 69 km away
  55. 2.011 km NW of Avenal, California · 17738 days ago · 9 km deep · 70 km away
  56. 2.50 km SW of Parkfield, California · 17737 days ago · 6 km deep · 76 km away
  57. 2.17 km NE of San Martin, California · 17737 days ago · 1 km deep · 98 km away
  58. 1.621 km NE of Soledad, California · 17736 days ago · 4 km deep · 36 km away
  59. 2.422 km ENE of Soledad, California · 17734 days ago · 4 km deep · 29 km away
  60. 2.622 km ENE of Soledad, California · 17734 days ago · 5 km deep · 29 km away

The first 60 of 113.

Before

  1. 1.825 km NE of Greenfield, California · 17762 days ago · 2 km deep · 23 km away
  2. 1.724 km NE of Greenfield, California · 17762 days ago · 0 km deep · 24 km away
  3. 2.426 km NE of Greenfield, California · 17762 days ago · 7 km deep · 23 km away
  4. 1.924 km ENE of Greenfield, California · 17763 days ago · 5 km deep · 24 km away
  5. 2.49 km SW of Tres Pinos, California · 17763 days ago · 6 km deep · 60 km away
  6. 1.834 km SSW of South Dos Palos, California · 17764 days ago · 10 km deep · 18 km away
  7. 1.85 km WSW of Gilroy, California · 17764 days ago · 2 km deep · 91 km away
  8. 1.521 km SSE of Tres Pinos, California · 17765 days ago · 5 km deep · 42 km away
  9. 1.626 km NE of Soledad, California · 17765 days ago · 8 km deep · 28 km away
  10. 1.723 km ENE of Soledad, California · 17766 days ago · 3 km deep · 29 km away
  11. 1.921 km NE of Soledad, California · 17766 days ago · 8 km deep · 33 km away
  12. 2.112 km S of Tres Pinos, California · 17766 days ago · 2 km deep · 50 km away
  13. 1.615 km SW of Soledad, California · 17767 days ago · 11 km deep · 64 km away
  14. 2.123 km NE of King City, California · 17767 days ago · 7 km deep · 23 km away
  15. 1.79 km SSW of Oak Shores, California · 17767 days ago · 3 km deep · 95 km away
  16. 1.526 km NE of Soledad, California · 17767 days ago · 8 km deep · 28 km away
  17. 1.922 km ENE of San Lucas, California · 17768 days ago · 7 km deep · 33 km away
  18. 1.822 km ENE of San Lucas, California · 17768 days ago · 4 km deep · 34 km away
  19. 2.221 km NE of Soledad, California · 17768 days ago · 5 km deep · 37 km away
  20. 1.89 km NW of Parkfield, California · 17768 days ago · 3 km deep · 67 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1038849. Read Tue, Sep 22, 2026, 11:27 PM UTC.