California earthquakes

M1.9 earthquake 26 km W of Volta, California

A magnitude 1.9 earthquake struck 26 km W of Volta, California on Wed, Dec 11, 1985, 7:29 PM PST (03:29 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M5.5 3 km ENE 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
1.9 (md), micro
Local time
UTC
1985-12-12 03:29:07 UTC
Depth
4.4 km (2.8 mi), shallow
Epicenter
37.082° N, 121.219° 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, 0.5 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
107°
Stations used
59

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 177 in the 60 days after this one and 103 in the 30 days before it.

After

  1. 3.06 km NNE of Interlaken, California · 14897 days ago · 11 km deep · 45 km away
  2. 3.46 km NNE of Interlaken, California · 14897 days ago · 12 km deep · 45 km away
  3. 2.17 km NNE of Interlaken, California · 14897 days ago · 10 km deep · 45 km away
  4. 1.96 km NNE of Interlaken, California · 14897 days ago · 11 km deep · 44 km away
  5. 1.96 km NE of East Foothills, California · 14896 days ago · 4 km deep · 61 km away
  6. 1.824 km NE of Greenfield, California · 14896 days ago · 5 km deep · 71 km away
  7. 1.78 km ENE of Morgan Hill, California · 14896 days ago · 3 km deep · 33 km away
  8. 1.616 km E of Seven Trees, California · 14896 days ago · 6 km deep · 44 km away
  9. 1.63 km N of East Foothills, California · 14896 days ago · 0 km deep · 65 km away
  10. 1.631 km NE of Soledad, California · 14895 days ago · 8 km deep · 58 km away
  11. 1.77 km W of Gilroy, California · 14895 days ago · 9 km deep · 39 km away
  12. 2.59 km NE of San Martin, California · 14895 days ago · 8 km deep · 30 km away
  13. 2.121 km NE of Soledad, California · 14894 days ago · 5 km deep · 57 km away
  14. 2.86 km NE of East Foothills, California · 14894 days ago · 4 km deep · 61 km away
  15. 2.17 km NE of Interlaken, California · 14894 days ago · 10 km deep · 41 km away
  16. 1.88 km SE of San Juan Bautista, California · 14893 days ago · 4 km deep · 41 km away
  17. 1.88 km SE of San Juan Bautista, California · 14893 days ago · 4 km deep · 41 km away
  18. 2.321 km NE of Soledad, California · 14891 days ago · 7 km deep · 56 km away
  19. 1.97 km NE of Interlaken, California · 14891 days ago · 10 km deep · 41 km away
  20. 2.1Central California · 14891 days ago · 18 km deep · 44 km away
  21. 1.921 km NE of Soledad, California · 14891 days ago · 7 km deep · 56 km away
  22. 2.49 km SSW of Ridgemark, California · 14891 days ago · 6 km deep · 42 km away
  23. 1.613 km N of Morgan Hill, California · 14890 days ago · 2 km deep · 42 km away
  24. 2.13 km SSE of Sunol, California · 14890 days ago · 8 km deep · 79 km away
  25. 1.621 km NE of Soledad, California · 14889 days ago · 3 km deep · 57 km away
  26. 1.73 km S of San Juan Bautista, California · 14889 days ago · 4 km deep · 40 km away
  27. 2.011 km E of Blackhawk, California · 14889 days ago · 21 km deep · 98 km away
  28. 1.66 km NNE of Ridgemark, California · 14889 days ago · 6 km deep · 26 km away
  29. 1.839 km W of Three Rocks, California · 14888 days ago · 5 km deep · 69 km away
  30. 2.74 km NNE of Ripon, California · 14887 days ago · 2 km deep · 78 km away
  31. 2.728 km ENE of Soledad, California · 14887 days ago · 9 km deep · 60 km away
  32. 2.724 km NE of Greenfield, California · 14885 days ago · 1 km deep · 70 km away
  33. 2.613 km N of Hollister, California · 14885 days ago · 6 km deep · 19 km away
  34. 1.916 km SSE of Tres Pinos, California · 14883 days ago · 8 km deep · 48 km away
  35. 3.018 km WSW of Volta, California · 14883 days ago · 3 km deep · 8 km away
  36. 1.57 km NE of Interlaken, California · 14883 days ago · 10 km deep · 41 km away
  37. 2.13 km W of San Juan Bautista, California · 14883 days ago · 6 km deep · 41 km away
  38. 1.512 km N of Morgan Hill, California · 14882 days ago · 6 km deep · 40 km away
  39. 1.918 km WSW of Volta, California · 14882 days ago · 2 km deep · 8 km away
  40. 2.020 km SSE of Tres Pinos, California · 14880 days ago · 5 km deep · 52 km away
  41. 1.54 km SSE of San Juan Bautista, California · 14880 days ago · 3 km deep · 40 km away
  42. 2.221 km NE of Soledad, California · 14880 days ago · 6 km deep · 59 km away
  43. 2.33 km NNE of Grayson, California · 14879 days ago · 8 km deep · 57 km away
  44. 1.814 km E of Seven Trees, California · 14879 days ago · 3 km deep · 46 km away
  45. 1.714 km E of Seven Trees, California · 14879 days ago · 3 km deep · 46 km away
  46. 1.67 km NE of Interlaken, California · 14879 days ago · 11 km deep · 41 km away
  47. 2.57 km E of East Foothills, California · 14878 days ago · 3 km deep · 56 km away
  48. 1.622 km NE of San Lucas, California · 14878 days ago · 5 km deep · 93 km away
  49. 1.516 km E of Seven Trees, California · 14878 days ago · 6 km deep · 45 km away
  50. 1.97 km WSW of Gilroy, California · 14877 days ago · 6 km deep · 40 km away
  51. 2.06 km E of East Foothills, California · 14877 days ago · 9 km deep · 57 km away
  52. 1.513 km ESE of Alum Rock, California · 14877 days ago · 2 km deep · 49 km away
  53. 2.69 km ESE of East Foothills, California · 14877 days ago · 8 km deep · 54 km away
  54. 1.78 km ESE of East Foothills, California · 14877 days ago · 8 km deep · 54 km away
  55. 2.13 km ESE of Diablo Grande, California · 14877 days ago · 2 km deep · 33 km away
  56. 2.030 km ENE of Soledad, California · 14875 days ago · 7 km deep · 60 km away
  57. 2.324 km ENE of Soledad, California · 14874 days ago · 3 km deep · 66 km away
  58. 2.713 km N of Morgan Hill, California · 14874 days ago · 5 km deep · 42 km away
  59. 1.714 km N of Morgan Hill, California · 14874 days ago · 6 km deep · 42 km away
  60. 2.014 km N of Morgan Hill, California · 14873 days ago · 3 km deep · 43 km away

The first 60 of 177.

Before

  1. 2.13 km N of East Foothills, California · 14899 days ago · 0 km deep · 65 km away
  2. 1.524 km NE of Greenfield, California · 14899 days ago · 5 km deep · 70 km away
  3. 2.73 km N of East Foothills, California · 14899 days ago · 1 km deep · 65 km away
  4. 1.816 km E of Seven Trees, California · 14900 days ago · 8 km deep · 45 km away
  5. 1.93 km N of Aromas, California · 14901 days ago · 5 km deep · 42 km away
  6. 1.512 km N of Morgan Hill, California · 14901 days ago · 6 km deep · 41 km away
  7. 1.617 km SSE of Tres Pinos, California · 14901 days ago · 6 km deep · 49 km away
  8. 2.04 km SSE of Seven Trees, California · 14902 days ago · 6 km deep · 57 km away
  9. 1.5Central California · 14902 days ago · 5 km deep · 39 km away
  10. 1.723 km NE of King City, California · 14902 days ago · 3 km deep · 85 km away
  11. 2.317 km ENE of East Foothills, California · 14903 days ago · 5 km deep · 52 km away
  12. 1.91 km NNE of Tres Pinos, California · 14904 days ago · 8 km deep · 33 km away
  13. 2.68 km S of Merced, California · 14904 days ago · 16 km deep · 67 km away
  14. 2.04 km SSE of San Juan Bautista, California · 14905 days ago · 4 km deep · 40 km away
  15. 1.925 km ENE of Greenfield, California · 14905 days ago · 2 km deep · 74 km away
  16. 1.924 km ENE of Greenfield, California · 14905 days ago · 5 km deep · 78 km away
  17. 3.314 km N of Morgan Hill, California · 14906 days ago · 6 km deep · 43 km away
  18. 1.69 km SE of Livermore, California · 14906 days ago · 8 km deep · 73 km away
  19. 2.19 km SE of Livermore, California · 14906 days ago · 8 km deep · 73 km away
  20. 1.97 km NNE of Milpitas, California · 14906 days ago · 6 km deep · 73 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc61243. Read Sat, Sep 26, 2026, 7:54 AM UTC.