California earthquakes

M1.6 earthquake 24 km ENE of Greenfield, California

A magnitude 1.6 earthquake struck 24 km ENE of Greenfield, California on Tue, Jul 20, 1982, 12:09 AM PDT (07:09 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.6 16 km SSE of Tres Pinos, California. This one was a foreshock.

Greenfield 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
1.6 (md), micro
Local time
UTC
1982-07-20 07:09:26 UTC
Depth
9.6 km (5.9 mi), shallow
Epicenter
36.430° N, 121.007° 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, 0.8 km in depth
Magnitude uncertainty
±0.22
Depth from
From location
Station coverage gap
91°
Stations used
34

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 198 in the 60 days after this one and 51 in the 30 days before it.

After

  1. 2.47 km NE of San Juan Bautista, California · 16143 days ago · 9 km deep · 67 km away
  2. 2.424 km NE of Greenfield, California · 16141 days ago · 7 km deep · 7 km away
  3. 1.721 km NW of Parkfield, California · 16141 days ago · 3 km deep · 57 km away
  4. 1.824 km ENE of Soledad, California · 16140 days ago · 7 km deep · 8 km away
  5. 1.724 km NE of Greenfield, California · 16139 days ago · 8 km deep · 7 km away
  6. 2.57 km E of Gilroy, California · 16139 days ago · 4 km deep · 78 km away
  7. 2.27 km E of Gilroy, California · 16139 days ago · 4 km deep · 78 km away
  8. 1.88 km E of Tres Pinos, California · 16138 days ago · 8 km deep · 45 km away
  9. 2.320 km SSE of Tres Pinos, California · 16137 days ago · 5 km deep · 29 km away
  10. 2.64 km SSW of Tres Pinos, California · 16137 days ago · 8 km deep · 47 km away
  11. 2.218 km SSE of Tres Pinos, California · 16137 days ago · 5 km deep · 31 km away
  12. 1.930 km NE of Soledad, California · 16136 days ago · 7 km deep · 17 km away
  13. 1.69 km W of Oak Shores, California · 16135 days ago · 3 km deep · 74 km away
  14. 1.913 km SSE of Tres Pinos, California · 16135 days ago · 4 km deep · 36 km away
  15. 2.224 km NE of Greenfield, California · 16135 days ago · 7 km deep · 6 km away
  16. 2.25 km E of Big Sur, California · 16135 days ago · 9 km deep · 68 km away
  17. 1.58 km NNW of El Nido, California · 16134 days ago · 11 km deep · 97 km away
  18. 1.710 km NNW of El Nido, California · 16134 days ago · 11 km deep · 96 km away
  19. 1.514 km NNE of Tres Pinos, California · 16134 days ago · 4 km deep · 58 km away
  20. 1.624 km NE of Greenfield, California · 16133 days ago · -1 km deep · 5 km away
  21. 2.021 km NW of Parkfield, California · 16130 days ago · 4 km deep · 57 km away
  22. 1.621 km NW of Parkfield, California · 16130 days ago · 3 km deep · 57 km away
  23. 2.021 km NW of Parkfield, California · 16130 days ago · 5 km deep · 57 km away
  24. 2.410 km S of Tres Pinos, California · 16129 days ago · 5 km deep · 40 km away
  25. 2.012 km WNW of Oak Shores, California · 16129 days ago · 5 km deep · 68 km away
  26. 3.210 km S of Tres Pinos, California · 16129 days ago · 6 km deep · 41 km away
  27. 1.77 km NE of San Juan Bautista, California · 16129 days ago · 9 km deep · 67 km away
  28. 2.05 km WSW of Gilroy, California · 16127 days ago · 8 km deep · 83 km away
  29. 1.912 km SSE of Tres Pinos, California · 16126 days ago · 5 km deep · 37 km away
  30. 1.65 km W of Paso Robles, California · 16126 days ago · 6 km deep · 92 km away
  31. 2.021 km SSE of Tres Pinos, California · 16126 days ago · 4 km deep · 28 km away
  32. 1.726 km SE of Tres Pinos, California · 16125 days ago · 11 km deep · 24 km away
  33. 2.19 km SSW of Tres Pinos, California · 16125 days ago · 1 km deep · 44 km away
  34. 1.522 km ENE of San Lucas, California · 16124 days ago · 5 km deep · 27 km away
  35. 3.022 km SSE of Tres Pinos, California · 16123 days ago · 6 km deep · 27 km away
  36. 2.322 km NNE of Soledad, California · 16123 days ago · 6 km deep · 27 km away
  37. 1.712 km SSE of Tres Pinos, California · 16123 days ago · 4 km deep · 37 km away
  38. 1.911 km S of Tres Pinos, California · 16123 days ago · 5 km deep · 40 km away
  39. 4.522 km SSE of Tres Pinos, California · 16122 days ago · 6 km deep · 26 km away
  40. 4.021 km SSE of Tres Pinos, California · 16122 days ago · 5 km deep · 28 km away
  41. 1.622 km NNE of Soledad, California · 16122 days ago · 7 km deep · 26 km away
  42. 1.621 km SSE of Tres Pinos, California · 16122 days ago · 5 km deep · 28 km away
  43. 2.521 km SSE of Tres Pinos, California · 16122 days ago · 7 km deep · 28 km away
  44. 3.421 km SSE of Tres Pinos, California · 16122 days ago · 7 km deep · 28 km away
  45. 1.921 km SSE of Tres Pinos, California · 16122 days ago · 6 km deep · 28 km away
  46. 2.822 km NNE of Soledad, California · 16122 days ago · 4 km deep · 26 km away
  47. 2.922 km NNE of Soledad, California · 16122 days ago · 6 km deep · 26 km away
  48. 2.721 km NNE of Soledad, California · 16122 days ago · 6 km deep · 26 km away
  49. 1.722 km NNE of Soledad, California · 16122 days ago · 5 km deep · 26 km away
  50. 2.221 km SSE of Tres Pinos, California · 16122 days ago · 6 km deep · 28 km away
  51. 2.021 km SSE of Tres Pinos, California · 16122 days ago · 5 km deep · 28 km away
  52. 2.022 km NNE of Soledad, California · 16122 days ago · 6 km deep · 26 km away
  53. 2.322 km NNE of Soledad, California · 16122 days ago · 7 km deep · 27 km away
  54. 1.521 km SSE of Tres Pinos, California · 16122 days ago · 6 km deep · 28 km away
  55. 2.522 km NNE of Soledad, California · 16122 days ago · 5 km deep · 26 km away
  56. 2.522 km SSE of Tres Pinos, California · 16122 days ago · 7 km deep · 27 km away
  57. 1.922 km NNE of Soledad, California · 16122 days ago · 6 km deep · 26 km away
  58. 1.922 km NNE of Soledad, California · 16122 days ago · 6 km deep · 26 km away
  59. 1.622 km NNE of Soledad, California · 16122 days ago · 6 km deep · 26 km away
  60. 1.811 km WNW of Lanare, California · 16122 days ago · 6 km deep · 86 km away

The first 60 of 198.

Before

  1. 1.54 km SSE of San Ardo, California · 16143 days ago · 9 km deep · 51 km away
  2. 2.88 km NE of Gilroy, California · 16143 days ago · 4 km deep · 82 km away
  3. 2.424 km NE of Soledad, California · 16144 days ago · 9 km deep · 20 km away
  4. 2.73 km W of San Juan Bautista, California · 16144 days ago · 4 km deep · 69 km away
  5. 2.07 km NE of San Juan Bautista, California · 16145 days ago · 8 km deep · 67 km away
  6. 3.57 km NE of San Juan Bautista, California · 16145 days ago · 9 km deep · 67 km away
  7. 2.33 km W of San Juan Bautista, California · 16146 days ago · 4 km deep · 69 km away
  8. 1.619 km NW of Parkfield, California · 16146 days ago · 4 km deep · 59 km away
  9. 2.89 km NE of Gilroy, California · 16146 days ago · 9 km deep · 81 km away
  10. 1.71 km E of Tres Pinos, California · 16149 days ago · 8 km deep · 48 km away
  11. 1.524 km NE of Greenfield, California · 16149 days ago · 6 km deep · 4 km away
  12. 1.922 km NE of San Ardo, California · 16150 days ago · 1 km deep · 34 km away
  13. 1.810 km S of Tres Pinos, California · 16152 days ago · 3 km deep · 42 km away
  14. 1.925 km WSW of Lockwood, California · 16152 days ago · 6 km deep · 70 km away
  15. 1.79 km NE of San Martin, California · 16153 days ago · 4 km deep · 94 km away
  16. 2.227 km E of Tres Pinos, California · 16153 days ago · 0 km deep · 36 km away
  17. 2.414 km NNE of Shandon, California · 16153 days ago · 8 km deep · 95 km away
  18. 2.19 km SSW of Ridgemark, California · 16153 days ago · 7 km deep · 49 km away
  19. 1.616 km SSE of Tres Pinos, California · 16154 days ago · 5 km deep · 34 km away
  20. 1.916 km SSE of Tres Pinos, California · 16154 days ago · 5 km deep · 34 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1076409. Read Wed, Sep 30, 2026, 10:47 AM UTC.