California earthquakes

M2.1 earthquake 22 km SW of Volta, California

A magnitude 2.1 earthquake struck 22 km SW of Volta, California on Wed, Sep 4, 1985, 9:40 AM PDT (16:40 UTC), 1 km (0 mi) below the surface.

A larger quake followed: M2.3 24 km NE of Soledad, 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
2.1 (md), micro
Local time
UTC
1985-09-04 16:40:49 UTC
Depth
0.5 km (0.3 mi), shallow
Epicenter
36.974° N, 121.125° 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, 1.4 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
84°
Stations used
48

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 116 in the 60 days after this one and 22 in the 30 days before it.

After

  1. 1.624 km NE of Greenfield, California · 14994 days ago · 5 km deep · 57 km away
  2. 1.910 km ESE of East Foothills, California · 14993 days ago · 7 km deep · 66 km away
  3. 1.524 km NE of Greenfield, California · 14993 days ago · 5 km deep · 56 km away
  4. 1.915 km N of Morgan Hill, California · 14993 days ago · 6 km deep · 57 km away
  5. 2.324 km NE of Soledad, California · 14992 days ago · 8 km deep · 45 km away
  6. 3.07 km E of East Foothills, California · 14991 days ago · 7 km deep · 69 km away
  7. 2.67 km ESE of East Foothills, California · 14991 days ago · 7 km deep · 69 km away
  8. 2.87 km ESE of East Foothills, California · 14991 days ago · 7 km deep · 69 km away
  9. 2.27 km S of Sunol, California · 14991 days ago · 6 km deep · 92 km away
  10. 2.37 km S of Sunol, California · 14991 days ago · 7 km deep · 92 km away
  11. 1.86 km ENE of Hollister, California · 14991 days ago · 8 km deep · 22 km away
  12. 1.513 km SSE of Livermore, California · 14990 days ago · 6 km deep · 84 km away
  13. 1.89 km ESE of Seven Trees, California · 14990 days ago · 5 km deep · 63 km away
  14. 3.29 km NNW of Hollister, California · 14989 days ago · 3 km deep · 28 km away
  15. 1.626 km SSW of Tracy, California · 14988 days ago · 0 km deep · 71 km away
  16. 2.923 km ENE of Soledad, California · 14987 days ago · 2 km deep · 51 km away
  17. 2.523 km ENE of Soledad, California · 14987 days ago · 2 km deep · 51 km away
  18. 1.924 km NE of King City, California · 14987 days ago · 4 km deep · 66 km away
  19. 2.09 km NE of Gilroy, California · 14987 days ago · 8 km deep · 33 km away
  20. 1.524 km NE of Greenfield, California · 14987 days ago · 2 km deep · 56 km away
  21. 1.718 km SE of Tres Pinos, California · 14986 days ago · 9 km deep · 34 km away
  22. 2.218 km SE of Tres Pinos, California · 14986 days ago · 10 km deep · 34 km away
  23. 1.7Northern California · 14986 days ago · 7 km deep · 83 km away
  24. 1.9Northern California · 14986 days ago · 4 km deep · 82 km away
  25. 2.213 km N of Morgan Hill, California · 14986 days ago · 5 km deep · 55 km away
  26. 1.79 km NE of Gilroy, California · 14984 days ago · 8 km deep · 33 km away
  27. 2.08 km S of Davenport, California · 14983 days ago · 5 km deep · 95 km away
  28. 1.516 km NNW of Coalinga, California · 14980 days ago · 3 km deep · 99 km away
  29. 1.69 km NNW of Hollister, California · 14979 days ago · 5 km deep · 28 km away
  30. 1.69 km NNE of Morgan Hill, California · 14979 days ago · 4 km deep · 49 km away
  31. 1.923 km ENE of Soledad, California · 14978 days ago · 5 km deep · 52 km away
  32. 1.59 km NNE of San Juan Bautista, California · 14978 days ago · 4 km deep · 32 km away
  33. 1.623 km ENE of Soledad, California · 14978 days ago · 4 km deep · 53 km away
  34. 2.58 km NE of San Martin, California · 14978 days ago · 7 km deep · 40 km away
  35. 1.9Northern California · 14977 days ago · 3 km deep · 88 km away
  36. 1.65 km SSE of San Juan Bautista, California · 14977 days ago · 7 km deep · 40 km away
  37. 1.56 km ENE of Hollister, California · 14975 days ago · 7 km deep · 22 km away
  38. 1.516 km NE of East Foothills, California · 14974 days ago · 8 km deep · 76 km away
  39. 3.516 km NE of East Foothills, California · 14974 days ago · 9 km deep · 76 km away
  40. 2.5Northern California · 14974 days ago · 8 km deep · 75 km away
  41. 1.816 km NE of East Foothills, California · 14974 days ago · 8 km deep · 75 km away
  42. 2.310 km N of Hollister, California · 14972 days ago · 9 km deep · 27 km away
  43. 1.723 km ENE of Soledad, California · 14972 days ago · 8 km deep · 49 km away
  44. 1.916 km E of Seven Trees, California · 14970 days ago · 6 km deep · 58 km away
  45. 1.616 km E of Seven Trees, California · 14970 days ago · 5 km deep · 58 km away
  46. 1.76 km NE of East Foothills, California · 14969 days ago · 9 km deep · 76 km away
  47. 2.07 km NNE of Interlaken, California · 14969 days ago · 7 km deep · 50 km away
  48. 2.622 km NNE of Soledad, California · 14968 days ago · 6 km deep · 42 km away
  49. 3.222 km NNE of Soledad, California · 14968 days ago · 7 km deep · 42 km away
  50. 1.622 km NNE of Soledad, California · 14968 days ago · 6 km deep · 43 km away
  51. 1.922 km NNE of Soledad, California · 14968 days ago · 6 km deep · 42 km away
  52. 1.615 km N of Morgan Hill, California · 14968 days ago · 8 km deep · 57 km away
  53. 2.311 km SSE of Tres Pinos, California · 14968 days ago · 4 km deep · 35 km away
  54. 1.822 km NNE of Soledad, California · 14968 days ago · 6 km deep · 42 km away
  55. 2.813 km N of Morgan Hill, California · 14968 days ago · 4 km deep · 55 km away
  56. 1.511 km ENE of Big Sur, California · 14967 days ago · 8 km deep · 89 km away
  57. 2.38 km NE of San Juan Bautista, California · 14966 days ago · 5 km deep · 32 km away
  58. 1.924 km NE of Greenfield, California · 14966 days ago · 4 km deep · 56 km away
  59. 1.723 km ENE of Soledad, California · 14965 days ago · 4 km deep · 53 km away
  60. 1.68 km NE of San Martin, California · 14964 days ago · 6 km deep · 41 km away

The first 60 of 116.

Before

  1. 1.712 km NW of Big Sur, California · 14994 days ago · 14 km deep · 96 km away
  2. 2.08 km ENE of Gilroy, California · 14995 days ago · 8 km deep · 33 km away
  3. 2.010 km NNW of Hollister, California · 14997 days ago · 0 km deep · 28 km away
  4. 1.622 km NE of Soledad, California · 14997 days ago · 5 km deep · 45 km away
  5. 1.724 km NE of King City, California · 14998 days ago · 1 km deep · 67 km away
  6. 1.824 km ENE of Soledad, California · 14998 days ago · 3 km deep · 53 km away
  7. 1.823 km NE of King City, California · 14999 days ago · 3 km deep · 70 km away
  8. 1.611 km ESE of East Foothills, California · 14999 days ago · 7 km deep · 65 km away
  9. 1.911 km ESE of East Foothills, California · 14999 days ago · 7 km deep · 65 km away
  10. 2.515 km E of Seven Trees, California · 14999 days ago · 6 km deep · 59 km away
  11. 2.023 km ENE of Soledad, California · 15000 days ago · 4 km deep · 53 km away
  12. 1.77 km ENE of Interlaken, California · 15000 days ago · 3 km deep · 48 km away
  13. 2.023 km NE of Greenfield, California · 15000 days ago · 5 km deep · 57 km away
  14. 2.29 km E of Sunol, California · 15000 days ago · 15 km deep · 90 km away
  15. 1.614 km E of Seven Trees, California · 15001 days ago · 3 km deep · 60 km away
  16. 2.312 km ESE of East Foothills, California · 15001 days ago · 8 km deep · 63 km away
  17. 2.212 km ESE of East Foothills, California · 15001 days ago · 6 km deep · 63 km away
  18. 1.617 km SSE of Tres Pinos, California · 15002 days ago · 6 km deep · 38 km away
  19. 1.621 km NE of Soledad, California · 15003 days ago · 2 km deep · 44 km away
  20. 1.523 km ENE of San Lucas, California · 15003 days ago · 4 km deep · 88 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc54534. Read Wed, Sep 23, 2026, 4:37 PM UTC.