California earthquakes

M2.1 earthquake 18 km WSW of Volta, California

A magnitude 2.1 earthquake struck 18 km WSW of Volta, California on Mon, Sep 1, 1986, 2:12 AM PDT (09:12 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M4.0 16 km E of Seven Trees, 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
1986-09-01 09:12:30 UTC
Depth
1.7 km (1.1 mi), shallow
Epicenter
37.041° N, 121.126° 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, 0.8 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
140°
Stations used
52

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 168 in the 60 days after this one and 131 in the 30 days before it.

After

  1. 1.69 km NE of San Martin, California · 14636 days ago · 6 km deep · 39 km away
  2. 1.613 km ENE of East Foothills, California · 14635 days ago · 6 km deep · 65 km away
  3. 1.818 km NE of East Foothills, California · 14635 days ago · 6 km deep · 72 km away
  4. 2.118 km NE of East Foothills, California · 14635 days ago · 6 km deep · 72 km away
  5. 4.016 km E of Seven Trees, California · 14635 days ago · 9 km deep · 54 km away
  6. 2.29 km NNW of Hollister, California · 14635 days ago · 7 km deep · 32 km away
  7. 2.018 km SSE of Livermore, California · 14635 days ago · 3 km deep · 73 km away
  8. 1.93 km WSW of Moss Landing, California · 14635 days ago · 5 km deep · 67 km away
  9. 2.04 km NNE of Tres Pinos, California · 14634 days ago · 5 km deep · 28 km away
  10. 1.516 km E of Seven Trees, California · 14634 days ago · 8 km deep · 54 km away
  11. 2.422 km NNE of Soledad, California · 14634 days ago · 6 km deep · 49 km away
  12. 1.717 km NE of East Foothills, California · 14634 days ago · 6 km deep · 72 km away
  13. 1.79 km ENE of Morgan Hill, California · 14633 days ago · 5 km deep · 40 km away
  14. 1.92 km SSW of Hollister, California · 14631 days ago · 8 km deep · 34 km away
  15. 2.321 km NE of Soledad, California · 14631 days ago · 6 km deep · 51 km away
  16. 1.82 km SSW of Hollister, California · 14631 days ago · 8 km deep · 34 km away
  17. 2.222 km ENE of Soledad, California · 14630 days ago · 10 km deep · 58 km away
  18. 1.713 km SE of Livermore, California · 14630 days ago · 4 km deep · 77 km away
  19. 2.419 km SSE of Livermore, California · 14630 days ago · 7 km deep · 73 km away
  20. 1.9Central California · 14630 days ago · 2 km deep · 66 km away
  21. 2.68 km ENE of Tres Pinos, California · 14630 days ago · 8 km deep · 27 km away
  22. 2.91 km SSW of Hollister, California · 14630 days ago · 6 km deep · 34 km away
  23. 1.64 km ESE of Tres Pinos, California · 14629 days ago · 7 km deep · 33 km away
  24. 1.615 km E of Seven Trees, California · 14629 days ago · 6 km deep · 55 km away
  25. 1.820 km SSE of Tres Pinos, California · 14628 days ago · 4 km deep · 48 km away
  26. 1.814 km SSE of Tres Pinos, California · 14628 days ago · 4 km deep · 44 km away
  27. 1.88 km SW of Ridgemark, California · 14628 days ago · 7 km deep · 42 km away
  28. 1.86 km ENE of Hollister, California · 14627 days ago · 6 km deep · 26 km away
  29. 1.515 km E of Seven Trees, California · 14627 days ago · 4 km deep · 54 km away
  30. 2.421 km NE of Soledad, California · 14627 days ago · 6 km deep · 54 km away
  31. 1.616 km SSE of Tres Pinos, California · 14627 days ago · 3 km deep · 45 km away
  32. 2.018 km SSE of Catheys Valley, California · 14627 days ago · -1 km deep · 99 km away
  33. 1.75 km ENE of Hollister, California · 14627 days ago · 6 km deep · 26 km away
  34. 1.910 km NNE of East Foothills, California · 14626 days ago · 7 km deep · 73 km away
  35. 1.55 km ENE of Hollister, California · 14625 days ago · 6 km deep · 27 km away
  36. 1.824 km ENE of Greenfield, California · 14625 days ago · 5 km deep · 71 km away
  37. 1.95 km ENE of Hollister, California · 14625 days ago · 6 km deep · 27 km away
  38. 2.214 km SSE of Tres Pinos, California · 14624 days ago · 4 km deep · 44 km away
  39. 1.55 km ENE of Hollister, California · 14624 days ago · 6 km deep · 27 km away
  40. 1.75 km SSW of Ridgemark, California · 14624 days ago · 5 km deep · 38 km away
  41. 2.35 km ENE of Hollister, California · 14624 days ago · 6 km deep · 26 km away
  42. 2.25 km ENE of Hollister, California · 14624 days ago · 6 km deep · 27 km away
  43. 1.85 km ENE of Hollister, California · 14624 days ago · 6 km deep · 27 km away
  44. 3.45 km ENE of Hollister, California · 14624 days ago · 7 km deep · 27 km away
  45. 2.14 km W of San Juan Bautista, California · 14624 days ago · 8 km deep · 46 km away
  46. 1.54 km ENE of Tres Pinos, California · 14623 days ago · 8 km deep · 29 km away
  47. 1.615 km NW of Diablo Grande, California · 14623 days ago · 5 km deep · 56 km away
  48. 1.921 km NE of Soledad, California · 14622 days ago · 5 km deep · 52 km away
  49. 3.114 km E of Seven Trees, California · 14622 days ago · 4 km deep · 56 km away
  50. 2.26 km WSW of Gilroy, California · 14621 days ago · 6 km deep · 45 km away
  51. 1.818 km NE of East Foothills, California · 14621 days ago · 5 km deep · 72 km away
  52. 1.824 km ENE of Soledad, California · 14621 days ago · 3 km deep · 61 km away
  53. 1.79 km ENE of Milpitas, California · 14620 days ago · 7 km deep · 78 km away
  54. 1.95 km ENE of Hollister, California · 14620 days ago · 6 km deep · 27 km away
  55. 1.821 km NE of Soledad, California · 14620 days ago · 7 km deep · 51 km away
  56. 2.09 km NNE of Hollister, California · 14619 days ago · 7 km deep · 24 km away
  57. 2.17 km SSE of San Juan Bautista, California · 14619 days ago · 8 km deep · 44 km away
  58. 2.422 km NNE of Soledad, California · 14618 days ago · 6 km deep · 50 km away
  59. 2.422 km NNE of Soledad, California · 14618 days ago · 6 km deep · 50 km away
  60. 2.312 km W of Westley, California · 14618 days ago · 5 km deep · 59 km away

The first 60 of 168.

Before

  1. 2.32 km ESE of Aromas, California · 14638 days ago · 5 km deep · 47 km away
  2. 1.68 km SSW of Tres Pinos, California · 14638 days ago · 3 km deep · 42 km away
  3. 2.09 km SSW of Ridgemark, California · 14638 days ago · 6 km deep · 42 km away
  4. 1.715 km WNW of Three Rocks, California · 14639 days ago · 12 km deep · 76 km away
  5. 1.813 km NE of East Foothills, California · 14639 days ago · 4 km deep · 72 km away
  6. 1.98 km ENE of Morgan Hill, California · 14639 days ago · 2 km deep · 41 km away
  7. 1.917 km SSE of Tres Pinos, California · 14640 days ago · 6 km deep · 46 km away
  8. 1.65 km NNE of Tres Pinos, California · 14640 days ago · 5 km deep · 28 km away
  9. 1.84 km SE of Tres Pinos, California · 14640 days ago · 8 km deep · 34 km away
  10. 1.910 km S of Tres Pinos, California · 14640 days ago · 4 km deep · 43 km away
  11. 2.413 km N of Morgan Hill, California · 14641 days ago · 5 km deep · 51 km away
  12. 1.83 km W of French Camp, California · 14642 days ago · 9 km deep · 95 km away
  13. 1.910 km NE of Morgan Hill, California · 14643 days ago · 9 km deep · 45 km away
  14. 2.418 km NE of East Foothills, California · 14643 days ago · 6 km deep · 72 km away
  15. 1.622 km NNE of Soledad, California · 14644 days ago · 6 km deep · 50 km away
  16. 2.19 km NNE of East Foothills, California · 14644 days ago · 5 km deep · 73 km away
  17. 1.623 km ENE of King City, California · 14645 days ago · 4 km deep · 82 km away
  18. 1.927 km SE of Tres Pinos, California · 14645 days ago · 16 km deep · 44 km away
  19. 1.621 km NE of Soledad, California · 14646 days ago · 2 km deep · 52 km away
  20. 1.822 km NNE of Soledad, California · 14646 days ago · 6 km deep · 50 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc80897. Read Mon, Sep 28, 2026, 4:01 AM UTC.