California earthquakes

M3.0 earthquake Central California

A magnitude 3.0 earthquake struck in Central California on Mon, Sep 18, 1978, 4:03 AM PDT (11:03 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M3.8 18 km SSE of Tres Pinos, 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
1978-09-18 11:03:34 UTC
Depth
4.4 km (2.8 mi), shallow
Epicenter
36.697° N, 121.331° 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, 0.4 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
33°
Stations used
46

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 147 in the 60 days after this one and 100 in the 30 days before it.

After

  1. 2.011 km S of Tres Pinos, California · 17542 days ago · 4 km deep · 1 km away
  2. 2.39 km NE of San Martin, California · 17541 days ago · 7 km deep · 54 km away
  3. 2.125 km WSW of Coalinga, California · 17541 days ago · 2 km deep · 94 km away
  4. 1.610 km SSW of Tres Pinos, California · 17541 days ago · 12 km deep · 3 km away
  5. 1.817 km SSE of Tres Pinos, California · 17541 days ago · 8 km deep · 11 km away
  6. 2.19 km S of Tres Pinos, California · 17540 days ago · 4 km deep · 1 km away
  7. 2.38 km SSE of Tres Pinos, California · 17540 days ago · 5 km deep · 3 km away
  8. 3.28 km NE of Interlaken, California · 17540 days ago · 4 km deep · 45 km away
  9. 1.69 km SSE of Tres Pinos, California · 17540 days ago · 5 km deep · 3 km away
  10. 1.88 km NE of Interlaken, California · 17540 days ago · 4 km deep · 45 km away
  11. 2.023 km NW of Parkfield, California · 17540 days ago · 3 km deep · 96 km away
  12. 1.89 km NW of Hollister, California · 17539 days ago · 4 km deep · 28 km away
  13. 2.89 km NNW of Hollister, California · 17538 days ago · 6 km deep · 28 km away
  14. 1.522 km ENE of Soledad, California · 17538 days ago · 5 km deep · 31 km away
  15. 2.29 km NNW of Hollister, California · 17537 days ago · 6 km deep · 28 km away
  16. 1.78 km NNW of Hollister, California · 17537 days ago · 4 km deep · 27 km away
  17. 2.99 km S of Tres Pinos, California · 17537 days ago · 4 km deep · 1 km away
  18. 1.59 km S of Tres Pinos, California · 17537 days ago · 4 km deep · 1 km away
  19. 1.623 km NNE of San Lucas, California · 17537 days ago · 6 km deep · 58 km away
  20. 2.510 km S of Tres Pinos, California · 17537 days ago · 4 km deep · 0 km away
  21. 2.021 km NE of Soledad, California · 17537 days ago · 3 km deep · 21 km away
  22. 1.99 km S of Tres Pinos, California · 17535 days ago · 4 km deep · 1 km away
  23. 1.99 km S of Tres Pinos, California · 17535 days ago · 4 km deep · 1 km away
  24. 1.99 km NNW of Hollister, California · 17535 days ago · 5 km deep · 28 km away
  25. 1.63 km W of Hollister, California · 17535 days ago · 4 km deep · 20 km away
  26. 1.9Central California · 17535 days ago · 4 km deep · 1 km away
  27. 1.59 km NNW of Hollister, California · 17535 days ago · 5 km deep · 28 km away
  28. 1.510 km S of Tres Pinos, California · 17535 days ago · 4 km deep · 1 km away
  29. 1.522 km ENE of San Lucas, California · 17535 days ago · 5 km deep · 71 km away
  30. 2.93 km ENE of East Foothills, California · 17534 days ago · 1 km deep · 87 km away
  31. 1.54 km N of Aromas, California · 17533 days ago · 4 km deep · 38 km away
  32. 1.64 km NE of Day Valley, California · 17531 days ago · 12 km deep · 59 km away
  33. 2.016 km E of Seven Trees, California · 17531 days ago · 7 km deep · 72 km away
  34. 1.78 km SSW of Tres Pinos, California · 17530 days ago · 2 km deep · 3 km away
  35. 1.56 km WSW of Gilroy, California · 17530 days ago · 4 km deep · 42 km away
  36. 2.48 km ESE of East Foothills, California · 17530 days ago · 1 km deep · 82 km away
  37. 1.521 km NE of Soledad, California · 17530 days ago · 7 km deep · 20 km away
  38. 2.88 km E of Gilroy, California · 17529 days ago · 4 km deep · 36 km away
  39. 1.76 km WSW of Gilroy, California · 17529 days ago · 7 km deep · 43 km away
  40. 1.814 km SSE of Tres Pinos, California · 17528 days ago · 4 km deep · 6 km away
  41. 2.422 km ENE of Soledad, California · 17527 days ago · 3 km deep · 26 km away
  42. 1.622 km ENE of Soledad, California · 17527 days ago · 2 km deep · 26 km away
  43. 2.522 km NE of Soledad, California · 17527 days ago · 3 km deep · 26 km away
  44. 2.122 km NE of Soledad, California · 17526 days ago · 2 km deep · 26 km away
  45. 3.113 km SSE of Tres Pinos, California · 17526 days ago · 5 km deep · 5 km away
  46. 1.711 km S of Tres Pinos, California · 17525 days ago · 4 km deep · 1 km away
  47. 1.913 km S of Tres Pinos, California · 17524 days ago · 4 km deep · 5 km away
  48. 1.88 km SSW of Tres Pinos, California · 17523 days ago · 2 km deep · 4 km away
  49. 1.729 km SW of South Dos Palos, California · 17523 days ago · 5 km deep · 43 km away
  50. 3.021 km NE of Soledad, California · 17522 days ago · 3 km deep · 21 km away
  51. 1.821 km NE of Soledad, California · 17522 days ago · 3 km deep · 20 km away
  52. 3.39 km S of Tres Pinos, California · 17521 days ago · 4 km deep · 1 km away
  53. 1.99 km S of Tres Pinos, California · 17521 days ago · 4 km deep · 1 km away
  54. 1.99 km S of Tres Pinos, California · 17521 days ago · 4 km deep · 1 km away
  55. 2.010 km S of Tres Pinos, California · 17521 days ago · 4 km deep · 1 km away
  56. 2.210 km S of Tres Pinos, California · 17521 days ago · 5 km deep · 0 km away
  57. 3.818 km SSE of Tres Pinos, California · 17521 days ago · 8 km deep · 10 km away
  58. 1.518 km SSE of Tres Pinos, California · 17521 days ago · 6 km deep · 10 km away
  59. 3.224 km E of Tres Pinos, California · 17521 days ago · 1 km deep · 27 km away
  60. 2.922 km E of Tres Pinos, California · 17521 days ago · 5 km deep · 25 km away

The first 60 of 147.

Before

  1. 2.010 km S of Tres Pinos, California · 17543 days ago · 4 km deep · 0 km away
  2. 2.9Central California · 17543 days ago · 5 km deep · 0 km away
  3. 2.710 km S of Tres Pinos, California · 17543 days ago · 4 km deep · 1 km away
  4. 2.3Central California · 17543 days ago · 4 km deep · 1 km away
  5. 1.8Central California · 17543 days ago · 4 km deep · 1 km away
  6. 2.210 km S of Tres Pinos, California · 17543 days ago · 4 km deep · 1 km away
  7. 2.710 km S of Tres Pinos, California · 17543 days ago · 5 km deep · 0 km away
  8. 2.410 km S of Tres Pinos, California · 17543 days ago · 4 km deep · 1 km away
  9. 2.2Central California · 17543 days ago · 4 km deep · 0 km away
  10. 3.810 km S of Tres Pinos, California · 17543 days ago · 4 km deep · 0 km away
  11. 1.69 km S of Tres Pinos, California · 17543 days ago · 4 km deep · 1 km away
  12. 2.5Central California · 17543 days ago · 1 km deep · 38 km away
  13. 2.810 km S of Tres Pinos, California · 17543 days ago · 4 km deep · 0 km away
  14. 3.910 km S of Tres Pinos, California · 17543 days ago · 4 km deep · 0 km away
  15. 2.910 km S of Tres Pinos, California · 17543 days ago · 4 km deep · 1 km away
  16. 1.610 km S of Tres Pinos, California · 17543 days ago · 4 km deep · 0 km away
  17. 2.410 km S of Tres Pinos, California · 17543 days ago · 5 km deep · 0 km away
  18. 3.010 km S of Tres Pinos, California · 17543 days ago · 4 km deep · 0 km away
  19. 3.39 km S of Tres Pinos, California · 17543 days ago · 4 km deep · 1 km away
  20. 1.89 km S of Tres Pinos, California · 17544 days ago · 4 km deep · 1 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1042383. Read Mon, Sep 28, 2026, 11:50 PM UTC.