California earthquakes

M2.1 earthquake 9 km SSW of Ridgemark, California

A magnitude 2.1 earthquake struck 9 km SSW of Ridgemark, California on Fri, Jul 9, 1982, 6:11 PM PDT (01:11 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M2.8 8 km NE of Gilroy, California. This one was a foreshock.

Ridgemark 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
2.1 (md), micro
Local time
UTC
1982-07-10 01:11:27 UTC
Depth
7.2 km (4.5 mi), shallow
Epicenter
36.733° N, 121.401° 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, 0.4 km in depth
Magnitude uncertainty
±0.19
Depth from
From location
Station coverage gap
33°
Stations used
60

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 184 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 2.88 km NE of Gilroy, California · 16136 days ago · 4 km deep · 37 km away
  2. 1.54 km SSE of San Ardo, California · 16136 days ago · 9 km deep · 96 km away
  3. 1.75 km NE of East Foothills, California · 16136 days ago · 6 km deep · 83 km away
  4. 1.624 km ENE of Greenfield, California · 16136 days ago · 10 km deep · 49 km away
  5. 2.47 km NE of San Juan Bautista, California · 16135 days ago · 9 km deep · 19 km away
  6. 1.715 km NNE of Morgan Hill, California · 16134 days ago · 6 km deep · 62 km away
  7. 2.424 km NE of Greenfield, California · 16133 days ago · 7 km deep · 42 km away
  8. 1.824 km ENE of Soledad, California · 16133 days ago · 7 km deep · 41 km away
  9. 1.724 km NE of Greenfield, California · 16132 days ago · 8 km deep · 42 km away
  10. 2.57 km E of Gilroy, California · 16131 days ago · 4 km deep · 32 km away
  11. 2.27 km E of Gilroy, California · 16131 days ago · 4 km deep · 32 km away
  12. 1.88 km E of Tres Pinos, California · 16131 days ago · 8 km deep · 17 km away
  13. 1.614 km ENE of East Foothills, California · 16131 days ago · 5 km deep · 80 km away
  14. 2.320 km SSE of Tres Pinos, California · 16130 days ago · 5 km deep · 20 km away
  15. 2.64 km SSW of Tres Pinos, California · 16130 days ago · 8 km deep · 5 km away
  16. 2.218 km SSE of Tres Pinos, California · 16130 days ago · 5 km deep · 18 km away
  17. 1.930 km NE of Soledad, California · 16128 days ago · 7 km deep · 36 km away
  18. 1.913 km SSE of Tres Pinos, California · 16128 days ago · 4 km deep · 14 km away
  19. 2.224 km NE of Greenfield, California · 16128 days ago · 7 km deep · 43 km away
  20. 2.25 km E of Big Sur, California · 16127 days ago · 9 km deep · 59 km away
  21. 1.58 km NNW of El Nido, California · 16127 days ago · 11 km deep · 94 km away
  22. 1.710 km NNW of El Nido, California · 16127 days ago · 11 km deep · 92 km away
  23. 1.514 km NNE of Tres Pinos, California · 16126 days ago · 4 km deep · 24 km away
  24. 1.624 km NE of Greenfield, California · 16126 days ago · -1 km deep · 43 km away
  25. 2.29 km ESE of East Foothills, California · 16123 days ago · 8 km deep · 74 km away
  26. 2.410 km S of Tres Pinos, California · 16122 days ago · 5 km deep · 8 km away
  27. 3.210 km S of Tres Pinos, California · 16122 days ago · 6 km deep · 8 km away
  28. 1.77 km NE of San Juan Bautista, California · 16121 days ago · 9 km deep · 20 km away
  29. 1.515 km SE of Livermore, California · 16121 days ago · 2 km deep · 96 km away
  30. 2.05 km WSW of Gilroy, California · 16120 days ago · 8 km deep · 35 km away
  31. 1.912 km SSE of Tres Pinos, California · 16119 days ago · 5 km deep · 12 km away
  32. 2.021 km SSE of Tres Pinos, California · 16119 days ago · 4 km deep · 21 km away
  33. 1.726 km SE of Tres Pinos, California · 16118 days ago · 11 km deep · 30 km away
  34. 2.19 km SSW of Tres Pinos, California · 16117 days ago · 1 km deep · 5 km away
  35. 1.522 km ENE of San Lucas, California · 16116 days ago · 5 km deep · 76 km away
  36. 3.022 km SSE of Tres Pinos, California · 16116 days ago · 6 km deep · 22 km away
  37. 2.322 km NNE of Soledad, California · 16116 days ago · 6 km deep · 22 km away
  38. 1.712 km SSE of Tres Pinos, California · 16116 days ago · 4 km deep · 12 km away
  39. 1.911 km S of Tres Pinos, California · 16115 days ago · 5 km deep · 9 km away
  40. 1.55 km ESE of East Foothills, California · 16115 days ago · 2 km deep · 77 km away
  41. 4.522 km SSE of Tres Pinos, California · 16115 days ago · 6 km deep · 22 km away
  42. 4.021 km SSE of Tres Pinos, California · 16115 days ago · 5 km deep · 21 km away
  43. 1.622 km NNE of Soledad, California · 16115 days ago · 7 km deep · 23 km away
  44. 1.621 km SSE of Tres Pinos, California · 16115 days ago · 5 km deep · 21 km away
  45. 2.521 km SSE of Tres Pinos, California · 16115 days ago · 7 km deep · 21 km away
  46. 3.421 km SSE of Tres Pinos, California · 16115 days ago · 7 km deep · 21 km away
  47. 1.921 km SSE of Tres Pinos, California · 16115 days ago · 6 km deep · 21 km away
  48. 2.822 km NNE of Soledad, California · 16115 days ago · 4 km deep · 23 km away
  49. 2.922 km NNE of Soledad, California · 16115 days ago · 6 km deep · 23 km away
  50. 2.721 km NNE of Soledad, California · 16115 days ago · 6 km deep · 23 km away
  51. 1.722 km NNE of Soledad, California · 16115 days ago · 5 km deep · 23 km away
  52. 2.221 km SSE of Tres Pinos, California · 16115 days ago · 6 km deep · 21 km away
  53. 2.021 km SSE of Tres Pinos, California · 16115 days ago · 5 km deep · 21 km away
  54. 2.022 km NNE of Soledad, California · 16115 days ago · 6 km deep · 22 km away
  55. 2.322 km NNE of Soledad, California · 16115 days ago · 7 km deep · 22 km away
  56. 1.521 km SSE of Tres Pinos, California · 16115 days ago · 6 km deep · 21 km away
  57. 2.522 km NNE of Soledad, California · 16115 days ago · 5 km deep · 22 km away
  58. 2.522 km SSE of Tres Pinos, California · 16115 days ago · 7 km deep · 22 km away
  59. 1.922 km NNE of Soledad, California · 16115 days ago · 6 km deep · 23 km away
  60. 1.922 km NNE of Soledad, California · 16115 days ago · 6 km deep · 23 km away

The first 60 of 184.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1076089. Read Wed, Sep 23, 2026, 12:25 AM UTC.