California earthquakes

M1.6 earthquake 5 km SSW of Gilroy, California

A magnitude 1.6 earthquake struck 5 km SSW of Gilroy, California on Mon, Dec 20, 1982, 1:13 AM PST (09:13 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M2.0 9 km SSW of Ridgemark, California. This one was a foreshock.

Gilroy 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
1982-12-20 09:13:06 UTC
Depth
6.8 km (4.2 mi), shallow
Epicenter
36.961° N, 121.587° 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
±0.26
Depth from
From location
Station coverage gap
33°
Stations used
38

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 130 in the 60 days after this one and 37 in the 30 days before it.

After

  1. 2.09 km SSW of Ridgemark, California · 15982 days ago · 5 km deep · 30 km away
  2. 3.04 km ESE of Interlaken, California · 15981 days ago · 11 km deep · 9 km away
  3. 2.88 km NE of Gilroy, California · 15981 days ago · 4 km deep · 14 km away
  4. 1.630 km W of Three Rocks, California · 15981 days ago · 8 km deep · 90 km away
  5. 2.225 km ENE of Greenfield, California · 15979 days ago · 3 km deep · 77 km away
  6. 1.95 km WSW of Gilroy, California · 15979 days ago · 4 km deep · 4 km away
  7. 2.34 km SW of Tres Pinos, California · 15977 days ago · 5 km deep · 30 km away
  8. 1.624 km SE of Tres Pinos, California · 15977 days ago · 8 km deep · 54 km away
  9. 3.53 km SSW of San Juan Bautista, California · 15976 days ago · 7 km deep · 17 km away
  10. 1.716 km SSE of Tres Pinos, California · 15976 days ago · 5 km deep · 45 km away
  11. 1.73 km S of San Juan Bautista, California · 15976 days ago · 6 km deep · 17 km away
  12. 2.022 km NE of Soledad, California · 15976 days ago · 4 km deep · 58 km away
  13. 2.04 km SSW of Gilroy, California · 15976 days ago · 6 km deep · 0 km away
  14. 1.93 km S of San Juan Bautista, California · 15976 days ago · 6 km deep · 17 km away
  15. 1.64 km SW of Tres Pinos, California · 15976 days ago · 8 km deep · 30 km away
  16. 2.09 km N of Hollister, California · 15975 days ago · 8 km deep · 15 km away
  17. 2.128 km W of Three Rocks, California · 15975 days ago · 9 km deep · 92 km away
  18. 2.228 km W of Three Rocks, California · 15975 days ago · 9 km deep · 92 km away
  19. 2.610 km S of Tres Pinos, California · 15974 days ago · 5 km deep · 37 km away
  20. 2.48 km ESE of East Foothills, California · 15974 days ago · 6 km deep · 45 km away
  21. 1.621 km NE of King City, California · 15973 days ago · 4 km deep · 92 km away
  22. 2.46 km WSW of Gilroy, California · 15973 days ago · 3 km deep · 5 km away
  23. 1.81 km E of Union City, California · 15973 days ago · 7 km deep · 80 km away
  24. 2.024 km NE of Greenfield, California · 15973 days ago · 1 km deep · 72 km away
  25. 3.316 km SSE of Tres Pinos, California · 15972 days ago · 4 km deep · 46 km away
  26. 1.74 km SSE of Fairview, California · 15971 days ago · 7 km deep · 85 km away
  27. 1.717 km SW of Volta, California · 15969 days ago · 3 km deep · 49 km away
  28. 1.515 km SSE of Tres Pinos, California · 15968 days ago · 5 km deep · 44 km away
  29. 1.717 km SSE of Tres Pinos, California · 15967 days ago · 5 km deep · 46 km away
  30. 1.822 km SSE of Tres Pinos, California · 15967 days ago · 4 km deep · 52 km away
  31. 2.717 km SSE of Tres Pinos, California · 15966 days ago · 5 km deep · 46 km away
  32. 1.717 km SSE of Tres Pinos, California · 15966 days ago · 5 km deep · 46 km away
  33. 1.517 km SSE of Tres Pinos, California · 15966 days ago · 5 km deep · 46 km away
  34. 3.410 km S of Tres Pinos, California · 15966 days ago · 5 km deep · 37 km away
  35. 2.96 km NE of East Foothills, California · 15965 days ago · 9 km deep · 53 km away
  36. 1.924 km ENE of King City, California · 15963 days ago · 4 km deep · 94 km away
  37. 2.56 km ENE of East Foothills, California · 15962 days ago · 7 km deep · 52 km away
  38. 2.224 km NE of Greenfield, California · 15962 days ago · 2 km deep · 72 km away
  39. 1.83 km S of San Juan Bautista, California · 15962 days ago · 6 km deep · 16 km away
  40. 1.824 km NE of Greenfield, California · 15961 days ago · 2 km deep · 73 km away
  41. 1.615 km SE of Livermore, California · 15960 days ago · 1 km deep · 68 km away
  42. 1.524 km ENE of Greenfield, California · 15960 days ago · 6 km deep · 78 km away
  43. 1.69 km N of Hollister, California · 15959 days ago · 7 km deep · 15 km away
  44. 2.06 km NNE of East Foothills, California · 15958 days ago · 5 km deep · 56 km away
  45. 1.819 km SSE of Tres Pinos, California · 15958 days ago · 6 km deep · 49 km away
  46. 1.88 km ESE of Tres Pinos, California · 15957 days ago · 9 km deep · 38 km away
  47. 1.622 km ESE of Tres Pinos, California · 15957 days ago · 5 km deep · 52 km away
  48. 1.7Northern California · 15956 days ago · 6 km deep · 42 km away
  49. 1.78 km SSW of Tres Pinos, California · 15954 days ago · 3 km deep · 33 km away
  50. 2.49 km S of Tres Pinos, California · 15954 days ago · 3 km deep · 37 km away
  51. 2.39 km S of Tres Pinos, California · 15954 days ago · 4 km deep · 36 km away
  52. 2.114 km SSE of Tres Pinos, California · 15954 days ago · 5 km deep · 44 km away
  53. 2.08 km SSW of Tres Pinos, California · 15953 days ago · 3 km deep · 33 km away
  54. 1.621 km NE of Soledad, California · 15952 days ago · 6 km deep · 61 km away
  55. 1.8Central California · 15952 days ago · 3 km deep · 40 km away
  56. 1.821 km SSW of South Dos Palos, California · 15952 days ago · 11 km deep · 76 km away
  57. 2.021 km NE of Soledad, California · 15952 days ago · 6 km deep · 55 km away
  58. 2.822 km NNE of Soledad, California · 15952 days ago · 3 km deep · 52 km away
  59. 1.616 km SSE of Tres Pinos, California · 15951 days ago · 3 km deep · 46 km away
  60. 2.329 km WNW of Three Rocks, California · 15951 days ago · 5 km deep · 89 km away

The first 60 of 130.

Before

  1. 1.613 km S of Mountain House, California · 15983 days ago · 0 km deep · 77 km away
  2. 1.921 km SE of Livermore, California · 15983 days ago · 8 km deep · 65 km away
  3. 1.624 km ENE of Soledad, California · 15984 days ago · 4 km deep · 67 km away
  4. 1.723 km NE of Soledad, California · 15984 days ago · 6 km deep · 59 km away
  5. 2.220 km SSE of Tres Pinos, California · 15985 days ago · 5 km deep · 49 km away
  6. 2.511 km S of Tres Pinos, California · 15986 days ago · 6 km deep · 40 km away
  7. 2.014 km SSE of Tres Pinos, California · 15987 days ago · 5 km deep · 44 km away
  8. 3.29 km NE of San Juan Bautista, California · 15989 days ago · 5 km deep · 11 km away
  9. 2.016 km E of Seven Trees, California · 15989 days ago · 7 km deep · 37 km away
  10. 1.521 km NE of Soledad, California · 15989 days ago · 8 km deep · 60 km away
  11. 1.815 km SSE of Tres Pinos, California · 15990 days ago · 4 km deep · 45 km away
  12. 1.919 km SSW of Volta, California · 15990 days ago · 6 km deep · 52 km away
  13. 2.125 km ENE of Greenfield, California · 15990 days ago · 5 km deep · 78 km away
  14. 1.925 km NNE of King City, California · 15990 days ago · 1 km deep · 83 km away
  15. 1.726 km ENE of Greenfield, California · 15990 days ago · 1 km deep · 79 km away
  16. 1.63 km W of San Juan Bautista, California · 15990 days ago · 6 km deep · 13 km away
  17. 2.83 km W of San Juan Bautista, California · 15990 days ago · 6 km deep · 13 km away
  18. 1.723 km NE of Hollister, California · 15990 days ago · 0 km deep · 35 km away
  19. 2.218 km NE of East Foothills, California · 15991 days ago · 6 km deep · 62 km away
  20. 1.74 km S of Fairview, California · 15991 days ago · 4 km deep · 86 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1083272. Read Tue, Sep 22, 2026, 9:30 PM UTC.