California earthquakes

M2.5 earthquake 26 km WSW of Volta, California

A magnitude 2.5 earthquake struck 26 km WSW of Volta, California on Sat, Apr 6, 1974, 4:59 PM PDT (23:59 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M4.4 24 km ENE of Greenfield, 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
2.5 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1974-04-06 23:59:38 UTC
Depth
5.7 km (3.6 mi), shallow
Epicenter
37.044° N, 121.215° 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, 0.8 km in depth
Magnitude uncertainty
±0.31
Depth from
From location
Station coverage gap
67°
Stations used
16

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 194 in the 60 days after this one and 169 in the 30 days before it.

After

  1. 2.47 km NNE of San Martin, California · 19174 days ago · 5 km deep · 33 km away
  2. 4.321 km NE of Soledad, California · 19174 days ago · 2 km deep · 53 km away
  3. 2.025 km NE of Soledad, California · 19174 days ago · 6 km deep · 50 km away
  4. 2.16 km WSW of Morgan Hill, California · 19173 days ago · 9 km deep · 45 km away
  5. 1.610 km NE of San Martin, California · 19173 days ago · 1 km deep · 29 km away
  6. 4.324 km NE of Soledad, California · 19173 days ago · 9 km deep · 55 km away
  7. 1.65 km SSW of Gilroy, California · 19173 days ago · 3 km deep · 34 km away
  8. 1.724 km NE of Soledad, California · 19173 days ago · 7 km deep · 55 km away
  9. 3.524 km ENE of Soledad, California · 19173 days ago · 4 km deep · 62 km away
  10. 1.87 km WSW of Gilroy, California · 19173 days ago · 2 km deep · 39 km away
  11. 1.920 km NE of Soledad, California · 19172 days ago · 7 km deep · 54 km away
  12. 2.126 km ENE of Greenfield, California · 19172 days ago · 1 km deep · 69 km away
  13. 1.623 km ENE of Soledad, California · 19172 days ago · 3 km deep · 62 km away
  14. 4.222 km NE of Soledad, California · 19171 days ago · 5 km deep · 51 km away
  15. 2.922 km SSE of Tres Pinos, California · 19171 days ago · 2 km deep · 48 km away
  16. 3.15 km SSW of Gilroy, California · 19170 days ago · 4 km deep · 34 km away
  17. 2.25 km SSW of Gilroy, California · 19170 days ago · 4 km deep · 34 km away
  18. 2.55 km SSW of Gilroy, California · 19170 days ago · 3 km deep · 35 km away
  19. 3.15 km SSW of Gilroy, California · 19170 days ago · 4 km deep · 34 km away
  20. 2.221 km NE of Soledad, California · 19170 days ago · 3 km deep · 55 km away
  21. 1.70 km ENE of Aromas, California · 19170 days ago · 8 km deep · 41 km away
  22. 2.34 km NE of Ridgemark, California · 19170 days ago · 9 km deep · 25 km away
  23. 2.317 km SSE of Tres Pinos, California · 19169 days ago · 3 km deep · 44 km away
  24. 1.817 km N of Morgan Hill, California · 19169 days ago · 6 km deep · 46 km away
  25. 1.617 km SSE of Tres Pinos, California · 19169 days ago · 2 km deep · 45 km away
  26. 3.25 km SSW of Gilroy, California · 19169 days ago · 4 km deep · 34 km away
  27. 2.410 km ESE of East Foothills, California · 19169 days ago · 2 km deep · 54 km away
  28. 2.824 km ENE of Soledad, California · 19169 days ago · 4 km deep · 62 km away
  29. 1.88 km S of Gilroy, California · 19169 days ago · 7 km deep · 33 km away
  30. 2.77 km S of Gilroy, California · 19169 days ago · 7 km deep · 33 km away
  31. 2.37 km WSW of Gilroy, California · 19169 days ago · 5 km deep · 39 km away
  32. 1.57 km NE of Interlaken, California · 19168 days ago · 7 km deep · 41 km away
  33. 2.821 km NE of Soledad, California · 19168 days ago · 8 km deep · 56 km away
  34. 2.05 km WNW of San Juan Bautista, California · 19168 days ago · 7 km deep · 39 km away
  35. 2.01 km NE of Hollister, California · 19168 days ago · 3 km deep · 25 km away
  36. 1.814 km E of Seven Trees, California · 19167 days ago · 2 km deep · 49 km away
  37. 3.422 km NNE of Soledad, California · 19166 days ago · 2 km deep · 50 km away
  38. 2.28 km E of San Martin, California · 19166 days ago · 7 km deep · 26 km away
  39. 3.824 km ENE of Soledad, California · 19166 days ago · 2 km deep · 63 km away
  40. 1.76 km NE of East Foothills, California · 19166 days ago · 5 km deep · 64 km away
  41. 1.623 km NE of Greenfield, California · 19166 days ago · 6 km deep · 67 km away
  42. 3.323 km ENE of San Lucas, California · 19166 days ago · 4 km deep · 98 km away
  43. 2.223 km ENE of King City, California · 19166 days ago · 6 km deep · 85 km away
  44. 2.421 km NE of Soledad, California · 19165 days ago · 2 km deep · 55 km away
  45. 2.218 km SSE of Tres Pinos, California · 19165 days ago · 8 km deep · 46 km away
  46. 1.79 km NNE of East Foothills, California · 19165 days ago · 8 km deep · 68 km away
  47. 2.417 km WSW of Volta, California · 19165 days ago · 10 km deep · 11 km away
  48. 3.68 km ESE of East Foothills, California · 19165 days ago · 6 km deep · 57 km away
  49. 2.825 km NE of Soledad, California · 19165 days ago · 8 km deep · 51 km away
  50. 2.17 km N of Hollister, California · 19165 days ago · 8 km deep · 22 km away
  51. 2.18 km N of San Juan Bautista, California · 19164 days ago · 3 km deep · 31 km away
  52. 1.621 km NE of Soledad, California · 19164 days ago · 6 km deep · 56 km away
  53. 2.63 km NNW of Hollister, California · 19164 days ago · 4 km deep · 25 km away
  54. 2.03 km W of Ridgemark, California · 19164 days ago · 8 km deep · 30 km away
  55. 2.317 km ENE of East Foothills, California · 19163 days ago · 6 km deep · 58 km away
  56. 3.25 km SSW of Gilroy, California · 19163 days ago · 4 km deep · 34 km away
  57. 2.05 km SSW of Gilroy, California · 19163 days ago · 4 km deep · 34 km away
  58. 2.45 km NNE of East Foothills, California · 19163 days ago · 5 km deep · 66 km away
  59. 2.4Central California · 19163 days ago · 4 km deep · 34 km away
  60. 2.15 km SSW of Gilroy, California · 19163 days ago · 4 km deep · 34 km away

The first 60 of 194.

Before

  1. 2.44 km SE of Aromas, California · 19174 days ago · 8 km deep · 40 km away
  2. 1.94 km SE of Aromas, California · 19174 days ago · 9 km deep · 40 km away
  3. 2.16 km NNE of San Martin, California · 19174 days ago · 3 km deep · 34 km away
  4. 2.34 km SE of Aromas, California · 19174 days ago · 8 km deep · 40 km away
  5. 2.49 km E of San Martin, California · 19175 days ago · 7 km deep · 26 km away
  6. 3.022 km NE of San Lucas, California · 19175 days ago · 8 km deep · 93 km away
  7. 2.15 km E of San Juan Bautista, California · 19175 days ago · 8 km deep · 32 km away
  8. 1.719 km SSE of Tres Pinos, California · 19175 days ago · 8 km deep · 46 km away
  9. 1.95 km ENE of Hollister, California · 19175 days ago · 8 km deep · 23 km away
  10. 2.422 km ENE of San Lucas, California · 19176 days ago · 4 km deep · 98 km away
  11. 2.012 km NNE of Hollister, California · 19176 days ago · 0 km deep · 16 km away
  12. 2.521 km NE of Soledad, California · 19176 days ago · 1 km deep · 55 km away
  13. 2.625 km NE of Hollister, California · 19176 days ago · 4 km deep · 3 km away
  14. 3.221 km NE of Soledad, California · 19176 days ago · 7 km deep · 51 km away
  15. 2.04 km SSW of Gilroy, California · 19176 days ago · 3 km deep · 35 km away
  16. 2.224 km NE of Greenfield, California · 19177 days ago · 3 km deep · 66 km away
  17. 2.724 km NE of Greenfield, California · 19177 days ago · 2 km deep · 65 km away
  18. 2.06 km NNE of Ridgemark, California · 19177 days ago · 5 km deep · 23 km away
  19. 2.422 km ENE of San Lucas, California · 19178 days ago · 4 km deep · 98 km away
  20. 1.88 km ENE of San Martin, California · 19178 days ago · 7 km deep · 28 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1019239. Read Mon, Oct 5, 2026, 2:43 AM UTC.