California earthquakes

M3.1 earthquake 25 km WSW of Volta, California

A magnitude 3.1 earthquake struck 25 km WSW of Volta, California on Thu, Sep 18, 1975, 4:10 AM PDT (11:10 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M4.2 Central California. This one was a foreshock.

Hollister 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
3.1 (Md, duration), minor
Magnitude from
Northern California Seismic System
Local time
UTC
1975-09-18 11:10:45 UTC
Depth
3.4 km (2.1 mi), shallow
Epicenter
37.046° N, 121.201° 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 0.3 km horizontally, 1.0 km in depth
Magnitude uncertainty
±0.45
Depth from
From location
Station coverage gap
96°
Stations used
31

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 184 in the 60 days after this one and 176 in the 30 days before it.

After

  1. 2.35 km NE of Ridgemark, California · 18641 days ago · 10 km deep · 24 km away
  2. 2.822 km SSE of Tres Pinos, California · 18641 days ago · 5 km deep · 49 km away
  3. 1.515 km ENE of Gonzales, California · 18641 days ago · 6 km deep · 52 km away
  4. 3.03 km ESE of Aromas, California · 18641 days ago · 7 km deep · 41 km away
  5. 2.63 km ESE of Aromas, California · 18641 days ago · 7 km deep · 41 km away
  6. 3.024 km ENE of Soledad, California · 18641 days ago · 7 km deep · 57 km away
  7. 1.73 km ESE of Aromas, California · 18641 days ago · 6 km deep · 40 km away
  8. 3.53 km ESE of Aromas, California · 18640 days ago · 7 km deep · 41 km away
  9. 2.59 km NW of Hollister, California · 18640 days ago · 6 km deep · 28 km away
  10. 3.925 km ENE of Soledad, California · 18640 days ago · 8 km deep · 57 km away
  11. 2.723 km ENE of Soledad, California · 18640 days ago · 3 km deep · 61 km away
  12. 2.29 km NW of Hollister, California · 18640 days ago · 5 km deep · 28 km away
  13. 3.125 km NE of Greenfield, California · 18639 days ago · 8 km deep · 68 km away
  14. 3.023 km NNE of San Lucas, California · 18639 days ago · 4 km deep · 87 km away
  15. 1.624 km NE of Soledad, California · 18639 days ago · 8 km deep · 52 km away
  16. 2.53 km SSW of Hollister, California · 18639 days ago · 5 km deep · 31 km away
  17. 2.511 km S of Tres Pinos, California · 18638 days ago · 4 km deep · 41 km away
  18. 3.08 km ENE of Gilroy, California · 18637 days ago · 7 km deep · 25 km away
  19. 2.623 km ENE of Soledad, California · 18637 days ago · 4 km deep · 61 km away
  20. 2.816 km NE of East Foothills, California · 18637 days ago · 6 km deep · 66 km away
  21. 3.39 km SE of Gilroy, California · 18637 days ago · 4 km deep · 29 km away
  22. 1.525 km NE of Greenfield, California · 18637 days ago · 6 km deep · 67 km away
  23. 3.021 km NE of Soledad, California · 18636 days ago · 5 km deep · 56 km away
  24. 2.415 km E of Tres Pinos, California · 18636 days ago · 6 km deep · 31 km away
  25. 2.98 km NE of San Juan Bautista, California · 18636 days ago · 6 km deep · 29 km away
  26. 2.45 km SW of Gilroy, California · 18636 days ago · 3 km deep · 37 km away
  27. 1.99 km S of Tres Pinos, California · 18635 days ago · 11 km deep · 39 km away
  28. 1.521 km NE of East Foothills, California · 18635 days ago · 2 km deep · 63 km away
  29. 2.523 km NE of Greenfield, California · 18635 days ago · 6 km deep · 65 km away
  30. 1.85 km SSE of Tres Pinos, California · 18635 days ago · 3 km deep · 35 km away
  31. 2.033 km SSW of South Dos Palos, California · 18634 days ago · 8 km deep · 50 km away
  32. 2.917 km SSE of Tres Pinos, California · 18634 days ago · 4 km deep · 45 km away
  33. 2.524 km NNE of King City, California · 18634 days ago · 5 km deep · 74 km away
  34. 2.311 km E of San Martin, California · 18634 days ago · 6 km deep · 25 km away
  35. 3.12 km SSW of San Juan Bautista, California · 18634 days ago · 6 km deep · 39 km away
  36. 3.82 km S of San Juan Bautista, California · 18634 days ago · 5 km deep · 39 km away
  37. 2.524 km NE of Greenfield, California · 18633 days ago · 5 km deep · 68 km away
  38. 1.712 km SE of Tres Pinos, California · 18633 days ago · 6 km deep · 37 km away
  39. 1.823 km NE of Soledad, California · 18633 days ago · 8 km deep · 53 km away
  40. 2.515 km SSE of Tres Pinos, California · 18632 days ago · 7 km deep · 44 km away
  41. 2.723 km ENE of San Lucas, California · 18632 days ago · 6 km deep · 96 km away
  42. 2.06 km NE of Ridgemark, California · 18632 days ago · 6 km deep · 24 km away
  43. 2.621 km NE of Soledad, California · 18631 days ago · 6 km deep · 52 km away
  44. 2.78 km SSW of Tres Pinos, California · 18631 days ago · 3 km deep · 39 km away
  45. 2.48 km SSW of Tres Pinos, California · 18631 days ago · 3 km deep · 39 km away
  46. 1.616 km NE of East Foothills, California · 18631 days ago · 6 km deep · 65 km away
  47. 3.13 km S of San Juan Bautista, California · 18631 days ago · 5 km deep · 39 km away
  48. 3.82 km S of San Juan Bautista, California · 18631 days ago · 6 km deep · 39 km away
  49. 2.84 km SSW of Gilroy, California · 18631 days ago · 2 km deep · 36 km away
  50. 1.816 km E of Tres Pinos, California · 18630 days ago · 0 km deep · 32 km away
  51. 2.122 km ENE of Soledad, California · 18630 days ago · 4 km deep · 60 km away
  52. 3.68 km SW of Ridgemark, California · 18630 days ago · 5 km deep · 39 km away
  53. 2.39 km SW of Ridgemark, California · 18630 days ago · 6 km deep · 39 km away
  54. 1.620 km NE of Soledad, California · 18630 days ago · 7 km deep · 54 km away
  55. 2.37 km SSE of Gilroy, California · 18629 days ago · 5 km deep · 32 km away
  56. 2.09 km SSW of Tres Pinos, California · 18629 days ago · 3 km deep · 39 km away
  57. 2.122 km NE of Soledad, California · 18629 days ago · 7 km deep · 56 km away
  58. 2.131 km NE of Soledad, California · 18628 days ago · 8 km deep · 53 km away
  59. 1.822 km ENE of Soledad, California · 18628 days ago · 5 km deep · 60 km away
  60. 2.522 km NE of San Lucas, California · 18627 days ago · 4 km deep · 88 km away

The first 60 of 184.

Before

  1. 2.325 km WSW of Volta, California · 18642 days ago · 3 km deep · 0 km away
  2. 2.424 km ENE of Greenfield, California · 18642 days ago · 5 km deep · 70 km away
  3. 2.57 km W of Gilroy, California · 18642 days ago · 5 km deep · 40 km away
  4. 2.36 km WSW of Gilroy, California · 18642 days ago · 7 km deep · 39 km away
  5. 2.822 km ENE of Soledad, California · 18642 days ago · 2 km deep · 57 km away
  6. 2.38 km NE of Gilroy, California · 18642 days ago · 8 km deep · 27 km away
  7. 3.924 km ENE of Greenfield, California · 18642 days ago · 5 km deep · 70 km away
  8. 2.54 km WNW of Hollister, California · 18642 days ago · 7 km deep · 29 km away
  9. 2.48 km NW of Hollister, California · 18642 days ago · 5 km deep · 29 km away
  10. 3.127 km NE of Soledad, California · 18643 days ago · 8 km deep · 55 km away
  11. 1.826 km NE of Soledad, California · 18643 days ago · 11 km deep · 52 km away
  12. 1.69 km SSW of Tres Pinos, California · 18643 days ago · 3 km deep · 40 km away
  13. 2.68 km WSW of San Martin, California · 18643 days ago · 3 km deep · 44 km away
  14. 2.725 km NE of Soledad, California · 18643 days ago · 7 km deep · 52 km away
  15. 2.79 km NNE of Morgan Hill, California · 18643 days ago · 4 km deep · 40 km away
  16. 2.99 km SSW of Tres Pinos, California · 18643 days ago · 3 km deep · 40 km away
  17. 1.618 km NE of East Foothills, California · 18644 days ago · 8 km deep · 65 km away
  18. 2.422 km ENE of Soledad, California · 18644 days ago · 3 km deep · 57 km away
  19. 2.322 km ENE of Soledad, California · 18644 days ago · 2 km deep · 58 km away
  20. 2.5Northern California · 18644 days ago · 7 km deep · 25 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1026443. Read Fri, Oct 2, 2026, 12:53 AM UTC.