California earthquakes

M2.3 earthquake 25 km WSW of Volta, California

A magnitude 2.3 earthquake struck 25 km WSW of Volta, California on Thu, Sep 18, 1975, 2:53 AM PDT (09:53 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.

Open the live map with earthquakes

The earthquake

Magnitude
2.3 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1975-09-18 09:53:11 UTC
Depth
3.0 km (1.8 mi), shallow
Epicenter
37.042° N, 121.203° 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, 1.2 km in depth
Magnitude uncertainty
±0.27
Depth from
From location
Station coverage gap
88°
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: 184 in the 60 days after this one and 175 in the 30 days before it.

After

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

The first 60 of 184.

Before

  1. 2.424 km ENE of Greenfield, California · 18641 days ago · 5 km deep · 69 km away
  2. 2.57 km W of Gilroy, California · 18641 days ago · 5 km deep · 40 km away
  3. 2.36 km WSW of Gilroy, California · 18642 days ago · 7 km deep · 39 km away
  4. 2.822 km ENE of Soledad, California · 18642 days ago · 2 km deep · 57 km away
  5. 2.38 km NE of Gilroy, California · 18642 days ago · 8 km deep · 27 km away
  6. 3.924 km ENE of Greenfield, California · 18642 days ago · 5 km deep · 69 km away
  7. 2.54 km WNW of Hollister, California · 18642 days ago · 7 km deep · 29 km away
  8. 2.48 km NW of Hollister, California · 18642 days ago · 5 km deep · 28 km away
  9. 3.127 km NE of Soledad, California · 18642 days ago · 8 km deep · 54 km away
  10. 1.826 km NE of Soledad, California · 18642 days ago · 11 km deep · 51 km away
  11. 1.69 km SSW of Tres Pinos, California · 18642 days ago · 3 km deep · 39 km away
  12. 2.68 km WSW of San Martin, California · 18642 days ago · 3 km deep · 44 km away
  13. 2.725 km NE of Soledad, California · 18643 days ago · 7 km deep · 52 km away
  14. 2.79 km NNE of Morgan Hill, California · 18643 days ago · 4 km deep · 40 km away
  15. 2.99 km SSW of Tres Pinos, California · 18643 days ago · 3 km deep · 40 km away
  16. 1.618 km NE of East Foothills, California · 18643 days ago · 8 km deep · 65 km away
  17. 2.422 km ENE of Soledad, California · 18644 days ago · 3 km deep · 57 km away
  18. 2.322 km ENE of Soledad, California · 18644 days ago · 2 km deep · 58 km away
  19. 2.5Northern California · 18644 days ago · 7 km deep · 25 km away
  20. 2.19 km NNE of San Juan Bautista, California · 18644 days ago · 2 km deep · 28 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1026442. Read Thu, Oct 1, 2026, 1:05 PM UTC.