California earthquakes

M1.7 earthquake 19 km W of Volta, California

A magnitude 1.7 earthquake struck 19 km W of Volta, California on Wed, Oct 17, 1979, 12:02 AM PDT (07:02 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.6 5 km ENE of Chowchilla, 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
1.7 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1979-10-17 07:02:34 UTC
Depth
5.5 km (3.4 mi), shallow
Epicenter
37.097° N, 121.143° 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 0.4 km horizontally, 0.7 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
164°
Stations used
30

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 185 in the 60 days after this one and 75 in the 30 days before it.

After

  1. 2.115 km SSE of Tres Pinos, California · 17151 days ago · 6 km deep · 51 km away
  2. 1.618 km SSE of Tres Pinos, California · 17151 days ago · 10 km deep · 53 km away
  3. 2.221 km NE of Soledad, California · 17151 days ago · 2 km deep · 61 km away
  4. 2.95 km SW of Gilroy, California · 17151 days ago · 5 km deep · 44 km away
  5. 1.737 km WNW of Three Rocks, California · 17151 days ago · -1 km deep · 64 km away
  6. 2.65 km SW of Gilroy, California · 17151 days ago · 4 km deep · 44 km away
  7. 3.014 km E of Seven Trees, California · 17150 days ago · 6 km deep · 53 km away
  8. 1.78 km E of Gilroy, California · 17150 days ago · 4 km deep · 31 km away
  9. 2.110 km NE of Gilroy, California · 17150 days ago · 9 km deep · 31 km away
  10. 1.610 km NE of Gilroy, California · 17150 days ago · 9 km deep · 31 km away
  11. 1.611 km ESE of Gilroy, California · 17150 days ago · 5 km deep · 31 km away
  12. 2.23 km S of San Juan Bautista, California · 17150 days ago · 7 km deep · 47 km away
  13. 1.814 km SSE of Tres Pinos, California · 17150 days ago · 6 km deep · 50 km away
  14. 2.815 km SSE of Tres Pinos, California · 17150 days ago · 6 km deep · 50 km away
  15. 1.524 km NE of Greenfield, California · 17149 days ago · 7 km deep · 69 km away
  16. 1.99 km NE of San Martin, California · 17149 days ago · 9 km deep · 35 km away
  17. 2.021 km NE of Soledad, California · 17149 days ago · 3 km deep · 61 km away
  18. 2.613 km S of Tres Pinos, California · 17149 days ago · 4 km deep · 49 km away
  19. 2.06 km WSW of Gilroy, California · 17149 days ago · 4 km deep · 45 km away
  20. 2.78 km ENE of Gilroy, California · 17149 days ago · 9 km deep · 31 km away
  21. 3.421 km NE of Soledad, California · 17148 days ago · 8 km deep · 58 km away
  22. 1.821 km NE of Soledad, California · 17148 days ago · 7 km deep · 58 km away
  23. 3.09 km ESE of Gilroy, California · 17148 days ago · 7 km deep · 31 km away
  24. 2.122 km ENE of Tres Pinos, California · 17148 days ago · 2 km deep · 24 km away
  25. 1.89 km NNW of Hollister, California · 17147 days ago · 2 km deep · 32 km away
  26. 1.69 km NNW of Hollister, California · 17147 days ago · 2 km deep · 32 km away
  27. 3.23 km W of San Juan Bautista, California · 17147 days ago · 5 km deep · 47 km away
  28. 1.65 km NE of Scotts Valley, California · 17146 days ago · 4 km deep · 73 km away
  29. 2.22 km W of San Juan Bautista, California · 17146 days ago · 1 km deep · 47 km away
  30. 2.04 km SE of Tres Pinos, California · 17145 days ago · 8 km deep · 39 km away
  31. 1.68 km ESE of Loma Mar, California · 17144 days ago · 19 km deep · 97 km away
  32. 1.619 km W of Volta, California · 17144 days ago · 4 km deep · 1 km away
  33. 1.611 km NE of Gilroy, California · 17142 days ago · 4 km deep · 30 km away
  34. 1.917 km SSE of Tres Pinos, California · 17141 days ago · 5 km deep · 51 km away
  35. 1.621 km NE of Soledad, California · 17140 days ago · 2 km deep · 61 km away
  36. 1.716 km SSE of Tres Pinos, California · 17140 days ago · 8 km deep · 51 km away
  37. 1.617 km SSE of Tres Pinos, California · 17140 days ago · 6 km deep · 50 km away
  38. 1.69 km N of Hollister, California · 17140 days ago · 8 km deep · 30 km away
  39. 2.47 km NE of East Foothills, California · 17140 days ago · 11 km deep · 67 km away
  40. 1.82 km SSW of Pleasanton, California · 17139 days ago · 11 km deep · 89 km away
  41. 2.211 km NE of Gilroy, California · 17139 days ago · 5 km deep · 30 km away
  42. 1.98 km SSW of Tres Pinos, California · 17139 days ago · 0 km deep · 46 km away
  43. 1.521 km NE of Soledad, California · 17138 days ago · 3 km deep · 60 km away
  44. 2.016 km SSE of Tres Pinos, California · 17138 days ago · 8 km deep · 51 km away
  45. 1.723 km NE of Greenfield, California · 17136 days ago · 5 km deep · 71 km away
  46. 1.53 km S of Fairview, California · 17135 days ago · 3 km deep · 100 km away
  47. 1.621 km NE of Soledad, California · 17135 days ago · 2 km deep · 62 km away
  48. 2.68 km ENE of Morgan Hill, California · 17135 days ago · 3 km deep · 38 km away
  49. 2.19 km ENE of Gilroy, California · 17135 days ago · 8 km deep · 30 km away
  50. 1.724 km NE of Greenfield, California · 17134 days ago · 1 km deep · 70 km away
  51. 1.59 km NE of Gilroy, California · 17134 days ago · 6 km deep · 32 km away
  52. 1.98 km NE of Gilroy, California · 17134 days ago · 7 km deep · 32 km away
  53. 1.529 km SE of Tres Pinos, California · 17133 days ago · 10 km deep · 54 km away
  54. 1.610 km E of Gilroy, California · 17133 days ago · 8 km deep · 29 km away
  55. 1.811 km ESE of Livermore, California · 17133 days ago · 8 km deep · 74 km away
  56. 1.87 km E of East Foothills, California · 17133 days ago · 8 km deep · 62 km away
  57. 1.69 km ENE of Gilroy, California · 17132 days ago · 8 km deep · 30 km away
  58. 2.111 km ESE of Sunol, California · 17132 days ago · 8 km deep · 75 km away
  59. 1.88 km ENE of Gilroy, California · 17132 days ago · 5 km deep · 31 km away
  60. 2.14 km SW of Gilroy, California · 17131 days ago · 1 km deep · 43 km away

The first 60 of 185.

Before

  1. 1.815 km SSE of Tres Pinos, California · 17152 days ago · 6 km deep · 51 km away
  2. 1.613 km ESE of Alum Rock, California · 17152 days ago · 2 km deep · 54 km away
  3. 2.815 km SSE of Tres Pinos, California · 17153 days ago · 6 km deep · 51 km away
  4. 1.69 km ENE of Gilroy, California · 17153 days ago · 9 km deep · 30 km away
  5. 1.99 km ENE of Gilroy, California · 17153 days ago · 8 km deep · 30 km away
  6. 2.121 km NE of Soledad, California · 17153 days ago · 3 km deep · 59 km away
  7. 1.69 km ENE of Gilroy, California · 17153 days ago · 9 km deep · 30 km away
  8. 1.822 km NE of San Lucas, California · 17153 days ago · 6 km deep · 95 km away
  9. 1.517 km SSE of Tres Pinos, California · 17154 days ago · 3 km deep · 51 km away
  10. 2.39 km ENE of Gilroy, California · 17154 days ago · 8 km deep · 30 km away
  11. 3.43 km S of San Juan Bautista, California · 17155 days ago · 5 km deep · 47 km away
  12. 2.321 km NE of Soledad, California · 17157 days ago · 7 km deep · 60 km away
  13. 1.617 km SSE of Tres Pinos, California · 17158 days ago · 9 km deep · 52 km away
  14. 2.77 km SSW of Three Rocks, California · 17158 days ago · 8 km deep · 98 km away
  15. 2.110 km NNW of Hollister, California · 17158 days ago · 0 km deep · 32 km away
  16. 2.110 km NNW of Hollister, California · 17158 days ago · 4 km deep · 31 km away
  17. 1.67 km ENE of Gilroy, California · 17158 days ago · 3 km deep · 32 km away
  18. 2.26 km ENE of Hollister, California · 17158 days ago · 6 km deep · 31 km away
  19. 2.48 km ENE of Gilroy, California · 17159 days ago · 9 km deep · 30 km away
  20. 2.77 km E of Gilroy, California · 17159 days ago · 5 km deep · 32 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1048361. Read Thu, Oct 1, 2026, 4:18 PM UTC.