California earthquakes

M1.5 earthquake 22 km ENE of Soledad, California

A magnitude 1.5 earthquake struck 22 km ENE of Soledad, California on Sat, Sep 23, 1978, 12:57 AM PDT (07:57 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.8 18 km SSE of Tres Pinos, California. This one was a foreshock.

Soledad 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
1.5 (md), micro
Local time
UTC
1978-09-23 07:57:09 UTC
Depth
4.8 km (3.0 mi), shallow
Epicenter
36.500° N, 121.091° 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, 0.3 km in depth
Magnitude uncertainty
±0.24
Depth from
From location
Station coverage gap
37°
Stations used
71

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 123 in the 60 days after this one and 82 in the 30 days before it.

After

  1. 2.29 km NNW of Hollister, California · 17539 days ago · 6 km deep · 57 km away
  2. 1.78 km NNW of Hollister, California · 17539 days ago · 4 km deep · 56 km away
  3. 2.99 km S of Tres Pinos, California · 17539 days ago · 4 km deep · 31 km away
  4. 1.59 km S of Tres Pinos, California · 17539 days ago · 4 km deep · 32 km away
  5. 1.623 km NNE of San Lucas, California · 17539 days ago · 6 km deep · 27 km away
  6. 2.510 km S of Tres Pinos, California · 17539 days ago · 4 km deep · 31 km away
  7. 2.021 km NE of Soledad, California · 17538 days ago · 3 km deep · 10 km away
  8. 1.99 km S of Tres Pinos, California · 17537 days ago · 4 km deep · 31 km away
  9. 1.99 km S of Tres Pinos, California · 17537 days ago · 4 km deep · 31 km away
  10. 1.99 km NNW of Hollister, California · 17537 days ago · 5 km deep · 57 km away
  11. 1.818 km NW of Parkfield, California · 17537 days ago · 2 km deep · 71 km away
  12. 1.63 km W of Hollister, California · 17537 days ago · 4 km deep · 50 km away
  13. 1.616 km NW of Parkfield, California · 17537 days ago · 3 km deep · 73 km away
  14. 1.9Central California · 17537 days ago · 4 km deep · 32 km away
  15. 1.59 km NNW of Hollister, California · 17537 days ago · 5 km deep · 57 km away
  16. 1.510 km S of Tres Pinos, California · 17536 days ago · 4 km deep · 30 km away
  17. 1.522 km ENE of San Lucas, California · 17536 days ago · 5 km deep · 41 km away
  18. 1.54 km N of Aromas, California · 17535 days ago · 4 km deep · 69 km away
  19. 1.64 km NE of Day Valley, California · 17533 days ago · 12 km deep · 90 km away
  20. 1.78 km SSW of Tres Pinos, California · 17532 days ago · 2 km deep · 34 km away
  21. 1.56 km WSW of Gilroy, California · 17532 days ago · 4 km deep · 73 km away
  22. 1.521 km NE of Soledad, California · 17531 days ago · 7 km deep · 11 km away
  23. 2.88 km E of Gilroy, California · 17531 days ago · 4 km deep · 65 km away
  24. 1.76 km WSW of Gilroy, California · 17530 days ago · 7 km deep · 74 km away
  25. 1.814 km SSE of Tres Pinos, California · 17530 days ago · 4 km deep · 25 km away
  26. 2.422 km ENE of Soledad, California · 17529 days ago · 3 km deep · 5 km away
  27. 1.622 km ENE of Soledad, California · 17528 days ago · 2 km deep · 5 km away
  28. 2.522 km NE of Soledad, California · 17528 days ago · 3 km deep · 5 km away
  29. 2.122 km NE of Soledad, California · 17528 days ago · 2 km deep · 5 km away
  30. 3.113 km SSE of Tres Pinos, California · 17528 days ago · 5 km deep · 26 km away
  31. 1.711 km S of Tres Pinos, California · 17527 days ago · 4 km deep · 29 km away
  32. 1.913 km S of Tres Pinos, California · 17525 days ago · 4 km deep · 26 km away
  33. 1.88 km SSW of Tres Pinos, California · 17525 days ago · 2 km deep · 35 km away
  34. 1.729 km SW of South Dos Palos, California · 17524 days ago · 5 km deep · 35 km away
  35. 3.021 km NE of Soledad, California · 17524 days ago · 3 km deep · 10 km away
  36. 1.821 km NE of Soledad, California · 17524 days ago · 3 km deep · 10 km away
  37. 3.39 km S of Tres Pinos, California · 17523 days ago · 4 km deep · 31 km away
  38. 1.99 km S of Tres Pinos, California · 17523 days ago · 4 km deep · 32 km away
  39. 1.99 km S of Tres Pinos, California · 17523 days ago · 4 km deep · 32 km away
  40. 2.010 km S of Tres Pinos, California · 17523 days ago · 4 km deep · 31 km away
  41. 2.210 km S of Tres Pinos, California · 17523 days ago · 5 km deep · 30 km away
  42. 3.818 km SSE of Tres Pinos, California · 17523 days ago · 8 km deep · 21 km away
  43. 1.518 km SSE of Tres Pinos, California · 17523 days ago · 6 km deep · 21 km away
  44. 3.224 km E of Tres Pinos, California · 17522 days ago · 1 km deep · 31 km away
  45. 2.922 km E of Tres Pinos, California · 17522 days ago · 5 km deep · 32 km away
  46. 1.77 km WSW of Gilroy, California · 17522 days ago · 4 km deep · 74 km away
  47. 2.622 km SSE of Tres Pinos, California · 17521 days ago · 6 km deep · 17 km away
  48. 1.918 km SSE of Tres Pinos, California · 17520 days ago · 6 km deep · 20 km away
  49. 1.912 km W of Oak Shores, California · 17519 days ago · 9 km deep · 81 km away
  50. 1.923 km ENE of Soledad, California · 17518 days ago · 2 km deep · 1 km away
  51. 1.613 km SSE of Tres Pinos, California · 17518 days ago · 3 km deep · 26 km away
  52. 3.29 km NNW of Hollister, California · 17518 days ago · 8 km deep · 58 km away
  53. 1.68 km NNW of Hollister, California · 17518 days ago · 5 km deep · 56 km away
  54. 2.221 km SSE of Tres Pinos, California · 17517 days ago · 5 km deep · 17 km away
  55. 2.93 km E of Morgan Hill, California · 17517 days ago · 2 km deep · 84 km away
  56. 1.617 km SSE of Tres Pinos, California · 17516 days ago · 6 km deep · 21 km away
  57. 2.223 km NE of Greenfield, California · 17515 days ago · 6 km deep · 5 km away
  58. 2.910 km S of Tres Pinos, California · 17514 days ago · 4 km deep · 31 km away
  59. 1.510 km S of Tres Pinos, California · 17514 days ago · 4 km deep · 31 km away
  60. 1.917 km SSE of Tres Pinos, California · 17513 days ago · 6 km deep · 22 km away

The first 60 of 123.

Before

  1. 2.89 km NNW of Hollister, California · 17540 days ago · 6 km deep · 57 km away
  2. 1.89 km NW of Hollister, California · 17540 days ago · 4 km deep · 57 km away
  3. 2.023 km NW of Parkfield, California · 17541 days ago · 3 km deep · 66 km away
  4. 1.88 km NE of Interlaken, California · 17542 days ago · 4 km deep · 76 km away
  5. 1.69 km SSE of Tres Pinos, California · 17542 days ago · 5 km deep · 30 km away
  6. 3.28 km NE of Interlaken, California · 17542 days ago · 4 km deep · 76 km away
  7. 2.38 km SSE of Tres Pinos, California · 17542 days ago · 5 km deep · 30 km away
  8. 2.19 km S of Tres Pinos, California · 17542 days ago · 4 km deep · 31 km away
  9. 1.910 km NNW of Parkfield, California · 17542 days ago · 13 km deep · 79 km away
  10. 1.817 km SSE of Tres Pinos, California · 17542 days ago · 8 km deep · 21 km away
  11. 1.610 km SSW of Tres Pinos, California · 17543 days ago · 12 km deep · 33 km away
  12. 2.125 km WSW of Coalinga, California · 17543 days ago · 2 km deep · 63 km away
  13. 2.39 km NE of San Martin, California · 17543 days ago · 7 km deep · 83 km away
  14. 2.011 km S of Tres Pinos, California · 17544 days ago · 4 km deep · 29 km away
  15. 3.0Central California · 17544 days ago · 4 km deep · 31 km away
  16. 2.010 km S of Tres Pinos, California · 17544 days ago · 4 km deep · 31 km away
  17. 2.9Central California · 17544 days ago · 5 km deep · 30 km away
  18. 2.710 km S of Tres Pinos, California · 17544 days ago · 4 km deep · 30 km away
  19. 2.3Central California · 17544 days ago · 4 km deep · 30 km away
  20. 1.8Central California · 17544 days ago · 4 km deep · 30 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1042446. Read Wed, Sep 30, 2026, 4:57 PM UTC.