California earthquakes

M1.6 earthquake 27 km NE of Greenfield, California

A magnitude 1.6 earthquake struck 27 km NE of Greenfield, California on Mon, Sep 27, 1982, 8:21 AM PDT (15:21 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M5.4 22 km SSW of Three Rocks, 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, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1982-09-27 15:21:12 UTC
Depth
5.1 km (3.2 mi), shallow
Epicenter
36.492° N, 121.019° 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, 1.8 km in depth
Magnitude uncertainty
±0.22
Depth from
From location
Station coverage gap
80°
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: 196 in the 60 days after this one and 113 in the 30 days before it.

After

  1. 1.712 km S of Tres Pinos, California · 16075 days ago · 5 km deep · 33 km away
  2. 2.08 km ENE of Gilroy, California · 16075 days ago · 8 km deep · 75 km away
  3. 1.69 km NNE of Coalinga, California · 16075 days ago · 11 km deep · 69 km away
  4. 1.611 km S of Tres Pinos, California · 16074 days ago · 5 km deep · 34 km away
  5. 1.622 km NE of San Lucas, California · 16074 days ago · 6 km deep · 30 km away
  6. 2.223 km ENE of Greenfield, California · 16073 days ago · 5 km deep · 10 km away
  7. 2.524 km NE of Greenfield, California · 16073 days ago · 5 km deep · 3 km away
  8. 1.524 km NE of Greenfield, California · 16073 days ago · 4 km deep · 4 km away
  9. 1.624 km NE of Greenfield, California · 16073 days ago · 4 km deep · 4 km away
  10. 1.631 km SE of Big Sur, California · 16072 days ago · 7 km deep · 70 km away
  11. 2.34 km SSE of San Juan Bautista, California · 16072 days ago · 6 km deep · 58 km away
  12. 1.721 km NE of Soledad, California · 16070 days ago · 3 km deep · 14 km away
  13. 1.915 km NW of Parkfield, California · 16070 days ago · 4 km deep · 68 km away
  14. 2.0Central California · 16070 days ago · 7 km deep · 9 km away
  15. 2.19 km ENE of San Martin, California · 16069 days ago · 7 km deep · 83 km away
  16. 2.04 km SSE of San Juan Bautista, California · 16068 days ago · 5 km deep · 57 km away
  17. 1.910 km SSW of Tres Pinos, California · 16067 days ago · 7 km deep · 38 km away
  18. 1.610 km SSW of Tres Pinos, California · 16067 days ago · 6 km deep · 38 km away
  19. 2.130 km ENE of Soledad, California · 16067 days ago · 6 km deep · 9 km away
  20. 1.930 km ENE of Soledad, California · 16067 days ago · 7 km deep · 9 km away
  21. 2.420 km NW of Parkfield, California · 16065 days ago · 7 km deep · 63 km away
  22. 1.721 km SSE of Tres Pinos, California · 16065 days ago · 6 km deep · 23 km away
  23. 2.120 km SSE of Tres Pinos, California · 16065 days ago · 4 km deep · 23 km away
  24. 1.714 km SSE of Tres Pinos, California · 16065 days ago · 5 km deep · 30 km away
  25. 1.621 km NW of Parkfield, California · 16064 days ago · 7 km deep · 63 km away
  26. 1.811 km S of Tres Pinos, California · 16063 days ago · 6 km deep · 34 km away
  27. 2.118 km ESE of Tres Pinos, California · 16062 days ago · 6 km deep · 28 km away
  28. 1.816 km NW of Parkfield, California · 16061 days ago · 2 km deep · 68 km away
  29. 2.316 km NW of Parkfield, California · 16061 days ago · 4 km deep · 68 km away
  30. 3.023 km ENE of San Lucas, California · 16061 days ago · 8 km deep · 35 km away
  31. 1.814 km SSE of Tres Pinos, California · 16061 days ago · 8 km deep · 31 km away
  32. 2.52 km NNW of Hollister, California · 16060 days ago · 6 km deep · 55 km away
  33. 1.814 km S of Tres Pinos, California · 16059 days ago · 9 km deep · 31 km away
  34. 1.619 km NW of San Simeon, California · 16059 days ago · 0 km deep · 88 km away
  35. 1.85 km SW of Gilroy, California · 16059 days ago · 3 km deep · 75 km away
  36. 1.522 km NNE of Soledad, California · 16059 days ago · 3 km deep · 20 km away
  37. 1.820 km NW of Parkfield, California · 16058 days ago · 8 km deep · 64 km away
  38. 1.824 km NE of King City, California · 16058 days ago · 2 km deep · 13 km away
  39. 1.54 km WSW of Madera Acres, California · 16058 days ago · 20 km deep · 98 km away
  40. 1.511 km S of Tres Pinos, California · 16057 days ago · 6 km deep · 34 km away
  41. 2.93 km W of San Juan Bautista, California · 16057 days ago · 5 km deep · 63 km away
  42. 1.524 km NE of Greenfield, California · 16056 days ago · 7 km deep · 4 km away
  43. 3.315 km SSE of Tres Pinos, California · 16056 days ago · 8 km deep · 30 km away
  44. 2.115 km SSE of Tres Pinos, California · 16055 days ago · 8 km deep · 30 km away
  45. 2.614 km SSE of Tres Pinos, California · 16055 days ago · 8 km deep · 30 km away
  46. 3.114 km SSE of Tres Pinos, California · 16055 days ago · 8 km deep · 30 km away
  47. 1.514 km SSE of Tres Pinos, California · 16055 days ago · 9 km deep · 30 km away
  48. 2.014 km SSE of Tres Pinos, California · 16055 days ago · 7 km deep · 30 km away
  49. 2.014 km S of Tres Pinos, California · 16055 days ago · 8 km deep · 31 km away
  50. 2.71 km ESE of Aromas, California · 16055 days ago · 9 km deep · 69 km away
  51. 3.015 km SSE of Tres Pinos, California · 16054 days ago · 8 km deep · 30 km away
  52. 1.612 km S of Tres Pinos, California · 16054 days ago · 7 km deep · 32 km away
  53. 1.95 km NNE of San Martin, California · 16053 days ago · 4 km deep · 87 km away
  54. 3.78 km NE of Corralitos, California · 16053 days ago · 12 km deep · 88 km away
  55. 1.711 km SSE of Tres Pinos, California · 16053 days ago · 4 km deep · 32 km away
  56. 1.823 km ENE of San Lucas, California · 16052 days ago · 5 km deep · 36 km away
  57. 1.92 km ENE of San Ardo, California · 16051 days ago · 12 km deep · 53 km away
  58. 3.122 km NNE of Soledad, California · 16051 days ago · 6 km deep · 20 km away
  59. 2.312 km NE of Morgan Hill, California · 16051 days ago · 6 km deep · 93 km away
  60. 1.914 km SSE of Tres Pinos, California · 16050 days ago · 6 km deep · 30 km away

The first 60 of 196.

Before

  1. 1.79 km SSW of Ridgemark, California · 16076 days ago · 6 km deep · 44 km away
  2. 1.86 km WSW of Gilroy, California · 16076 days ago · 5 km deep · 78 km away
  3. 1.711 km S of Tres Pinos, California · 16076 days ago · 3 km deep · 34 km away
  4. 1.712 km S of Tres Pinos, California · 16077 days ago · 4 km deep · 33 km away
  5. 1.711 km S of Tres Pinos, California · 16077 days ago · 6 km deep · 34 km away
  6. 2.15 km SSW of Gilroy, California · 16077 days ago · 4 km deep · 73 km away
  7. 2.413 km S of Tres Pinos, California · 16077 days ago · 6 km deep · 32 km away
  8. 2.312 km S of Tres Pinos, California · 16077 days ago · 6 km deep · 33 km away
  9. 1.93 km SSE of San Ardo, California · 16077 days ago · 10 km deep · 56 km away
  10. 2.112 km S of Tres Pinos, California · 16077 days ago · 5 km deep · 33 km away
  11. 2.412 km S of Tres Pinos, California · 16077 days ago · 5 km deep · 33 km away
  12. 1.812 km S of Tres Pinos, California · 16077 days ago · 5 km deep · 33 km away
  13. 3.212 km S of Tres Pinos, California · 16077 days ago · 6 km deep · 33 km away
  14. 3.214 km S of Tres Pinos, California · 16077 days ago · 6 km deep · 34 km away
  15. 3.012 km S of Tres Pinos, California · 16077 days ago · 6 km deep · 32 km away
  16. 1.713 km S of Tres Pinos, California · 16077 days ago · 5 km deep · 32 km away
  17. 2.612 km S of Tres Pinos, California · 16077 days ago · 5 km deep · 33 km away
  18. 1.613 km S of Tres Pinos, California · 16077 days ago · 6 km deep · 31 km away
  19. 3.412 km S of Tres Pinos, California · 16077 days ago · 7 km deep · 32 km away
  20. 1.611 km S of Tres Pinos, California · 16077 days ago · 6 km deep · 34 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1079629. Read Thu, Oct 1, 2026, 6:48 PM UTC.