California earthquakes

M3.3 earthquake 21 km NE of Soledad, California

A magnitude 3.3 earthquake struck 21 km NE of Soledad, California on Fri, Oct 28, 1977, 4:00 AM PDT (11:00 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.4 21 km NE of Soledad, California. This one was a foreshock.

Soledad forecastMore in California

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
3.3 (md), minor
Local time
UTC
1977-10-28 11:00:51 UTC
Depth
5.3 km (3.3 mi), shallow
Epicenter
36.581° N, 121.178° 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
±0.11
Depth from
From location
Station coverage gap
40°
Stations used
36

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 188 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 2.521 km NW of Parkfield, California · 17859 days ago · 4 km deep · 80 km away
  2. 2.321 km NE of Soledad, California · 17858 days ago · 2 km deep · 5 km away
  3. 1.917 km N of San Simeon, California · 17858 days ago · 11 km deep · 86 km away
  4. 1.923 km ENE of Soledad, California · 17858 days ago · 5 km deep · 13 km away
  5. 1.625 km ENE of Greenfield, California · 17857 days ago · 5 km deep · 26 km away
  6. 1.518 km NW of Parkfield, California · 17857 days ago · 3 km deep · 83 km away
  7. 1.724 km ENE of Soledad, California · 17857 days ago · 4 km deep · 13 km away
  8. 2.67 km NNE of Interlaken, California · 17856 days ago · 9 km deep · 68 km away
  9. 1.623 km NE of Greenfield, California · 17856 days ago · 5 km deep · 18 km away
  10. 2.410 km S of Tres Pinos, California · 17856 days ago · 5 km deep · 20 km away
  11. 2.122 km NW of Coalinga, California · 17856 days ago · 8 km deep · 66 km away
  12. 3.317 km SW of Lockwood, California · 17855 days ago · 11 km deep · 82 km away
  13. 1.524 km NW of Parkfield, California · 17855 days ago · 4 km deep · 77 km away
  14. 1.912 km N of Morgan Hill, California · 17855 days ago · 4 km deep · 84 km away
  15. 2.924 km ENE of Greenfield, California · 17855 days ago · 7 km deep · 23 km away
  16. 1.626 km ENE of Greenfield, California · 17855 days ago · 7 km deep · 24 km away
  17. 3.025 km ENE of Greenfield, California · 17855 days ago · 7 km deep · 23 km away
  18. 2.025 km ENE of Greenfield, California · 17855 days ago · 6 km deep · 23 km away
  19. 1.825 km ENE of Greenfield, California · 17855 days ago · 7 km deep · 24 km away
  20. 1.825 km ENE of Greenfield, California · 17855 days ago · 6 km deep · 24 km away
  21. 1.625 km ENE of Greenfield, California · 17855 days ago · 6 km deep · 23 km away
  22. 1.99 km NW of Hollister, California · 17854 days ago · 7 km deep · 45 km away
  23. 2.425 km ENE of Greenfield, California · 17854 days ago · 7 km deep · 23 km away
  24. 1.523 km ENE of Soledad, California · 17854 days ago · 5 km deep · 12 km away
  25. 2.232 km WSW of Three Rocks, California · 17854 days ago · 11 km deep · 50 km away
  26. 2.622 km NE of Soledad, California · 17854 days ago · 6 km deep · 1 km away
  27. 1.521 km NE of Soledad, California · 17854 days ago · 6 km deep · 0 km away
  28. 3.322 km NE of Soledad, California · 17854 days ago · 6 km deep · 1 km away
  29. 3.421 km NE of Soledad, California · 17854 days ago · 6 km deep · 1 km away
  30. 3.418 km NNE of Soledad, California · 17854 days ago · 7 km deep · 4 km away
  31. 1.921 km NE of Soledad, California · 17854 days ago · 6 km deep · 1 km away
  32. 1.621 km NE of Soledad, California · 17854 days ago · 6 km deep · 1 km away
  33. 1.621 km NE of Soledad, California · 17854 days ago · 6 km deep · 1 km away
  34. 2.421 km NE of Soledad, California · 17854 days ago · 6 km deep · 1 km away
  35. 3.221 km NE of Soledad, California · 17854 days ago · 7 km deep · 1 km away
  36. 2.021 km NE of Soledad, California · 17854 days ago · 5 km deep · 0 km away
  37. 2.522 km NE of Soledad, California · 17854 days ago · 6 km deep · 1 km away
  38. 1.821 km NE of Soledad, California · 17854 days ago · 6 km deep · 1 km away
  39. 2.321 km NE of Soledad, California · 17854 days ago · 5 km deep · 1 km away
  40. 1.521 km NE of Soledad, California · 17854 days ago · 6 km deep · 1 km away
  41. 2.025 km ENE of Greenfield, California · 17853 days ago · 6 km deep · 24 km away
  42. 2.221 km NE of Soledad, California · 17853 days ago · 3 km deep · 2 km away
  43. 1.721 km NE of Soledad, California · 17853 days ago · 5 km deep · 1 km away
  44. 2.021 km NE of Soledad, California · 17853 days ago · 6 km deep · 1 km away
  45. 2.14 km SSE of San Juan Bautista, California · 17853 days ago · 6 km deep · 40 km away
  46. 2.59 km NW of Hollister, California · 17853 days ago · 7 km deep · 45 km away
  47. 2.2Northern California · 17852 days ago · 7 km deep · 100 km away
  48. 1.625 km ENE of Greenfield, California · 17852 days ago · 6 km deep · 23 km away
  49. 2.022 km NNE of Soledad, California · 17852 days ago · 2 km deep · 4 km away
  50. 1.720 km ESE of Tres Pinos, California · 17851 days ago · 0 km deep · 16 km away
  51. 2.321 km NE of Soledad, California · 17851 days ago · 5 km deep · 0 km away
  52. 2.021 km NE of Soledad, California · 17851 days ago · 5 km deep · 1 km away
  53. 2.025 km E of Tres Pinos, California · 17851 days ago · 0 km deep · 26 km away
  54. 2.419 km NW of Parkfield, California · 17850 days ago · 5 km deep · 82 km away
  55. 2.36 km NW of Parkfield, California · 17849 days ago · 12 km deep · 95 km away
  56. 1.823 km ENE of Soledad, California · 17848 days ago · 6 km deep · 13 km away
  57. 2.321 km NE of Soledad, California · 17847 days ago · 6 km deep · 4 km away
  58. 1.710 km NW of Hollister, California · 17847 days ago · 0 km deep · 46 km away
  59. 2.725 km ENE of Greenfield, California · 17847 days ago · 7 km deep · 23 km away
  60. 2.210 km NNE of San Juan Bautista, California · 17846 days ago · 0 km deep · 46 km away

The first 60 of 188.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1037446 (also filed as ci3335667). Read Tue, Sep 22, 2026, 11:17 AM UTC.