California earthquakes

M1.9 earthquake 21 km SE of Livermore, California

A magnitude 1.9 earthquake struck 21 km SE of Livermore, California on Sun, Dec 19, 1982, 3:31 AM PST (11:31 UTC), 8 km (5 mi) below the surface.

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

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Map

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

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The earthquake

Magnitude
1.9 (md), micro
Local time
UTC
1982-12-19 11:31:49 UTC
Depth
7.9 km (4.9 mi), shallow
Epicenter
37.549° N, 121.592° 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 0.6 km horizontally, 1.1 km in depth
Magnitude uncertainty
±0.20
Depth from
From location
Station coverage gap
150°
Stations used
31

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 76 in the 60 days after this one and 49 in the 30 days before it.

After

  1. 1.71 km NE of Pleasant Hill, California · 15983 days ago · 9 km deep · 60 km away
  2. 1.613 km S of Mountain House, California · 15983 days ago · 0 km deep · 13 km away
  3. 1.65 km SSW of Gilroy, California · 15983 days ago · 7 km deep · 65 km away
  4. 2.09 km SSW of Ridgemark, California · 15982 days ago · 5 km deep · 92 km away
  5. 3.04 km ESE of Interlaken, California · 15981 days ago · 11 km deep · 69 km away
  6. 2.88 km NE of Gilroy, California · 15981 days ago · 4 km deep · 55 km away
  7. 1.95 km WSW of Gilroy, California · 15979 days ago · 4 km deep · 63 km away
  8. 1.93 km SE of Piedmont, California · 15978 days ago · 9 km deep · 60 km away
  9. 2.34 km SW of Tres Pinos, California · 15977 days ago · 5 km deep · 90 km away
  10. 3.53 km SSW of San Juan Bautista, California · 15976 days ago · 7 km deep · 82 km away
  11. 1.73 km S of San Juan Bautista, California · 15976 days ago · 6 km deep · 82 km away
  12. 2.04 km SSW of Gilroy, California · 15976 days ago · 6 km deep · 65 km away
  13. 1.93 km S of San Juan Bautista, California · 15976 days ago · 6 km deep · 81 km away
  14. 1.64 km SW of Tres Pinos, California · 15976 days ago · 8 km deep · 90 km away
  15. 2.09 km N of Hollister, California · 15975 days ago · 8 km deep · 70 km away
  16. 2.610 km S of Tres Pinos, California · 15974 days ago · 5 km deep · 97 km away
  17. 2.48 km ESE of East Foothills, California · 15974 days ago · 6 km deep · 25 km away
  18. 2.24 km NNW of Benicia, California · 15973 days ago · 7 km deep · 79 km away
  19. 2.46 km WSW of Gilroy, California · 15973 days ago · 3 km deep · 63 km away
  20. 1.81 km E of Union City, California · 15973 days ago · 7 km deep · 36 km away
  21. 1.74 km SSE of Fairview, California · 15971 days ago · 7 km deep · 40 km away
  22. 1.91 km ENE of Piedmont, California · 15970 days ago · 7 km deep · 63 km away
  23. 1.717 km SW of Volta, California · 15969 days ago · 3 km deep · 81 km away
  24. 1.610 km SW of Brentwood, California · 15967 days ago · 16 km deep · 37 km away
  25. 3.410 km S of Tres Pinos, California · 15966 days ago · 5 km deep · 97 km away
  26. 2.96 km NE of East Foothills, California · 15965 days ago · 9 km deep · 21 km away
  27. 1.53 km NNE of Bay Point, California · 15963 days ago · 19 km deep · 64 km away
  28. 2.56 km ENE of East Foothills, California · 15962 days ago · 7 km deep · 21 km away
  29. 1.83 km S of San Juan Bautista, California · 15962 days ago · 6 km deep · 81 km away
  30. 1.63 km NNE of Pacifica, California · 15961 days ago · 10 km deep · 78 km away
  31. 1.91 km SE of Danville, California · 15961 days ago · 6 km deep · 45 km away
  32. 1.72 km WSW of Broadmoor, California · 15961 days ago · 12 km deep · 82 km away
  33. 1.615 km SE of Livermore, California · 15960 days ago · 1 km deep · 6 km away
  34. 1.69 km N of Hollister, California · 15959 days ago · 7 km deep · 69 km away
  35. 2.06 km NNE of East Foothills, California · 15958 days ago · 5 km deep · 21 km away
  36. 1.88 km ESE of Tres Pinos, California · 15957 days ago · 9 km deep · 93 km away
  37. 1.7Northern California · 15956 days ago · 6 km deep · 26 km away
  38. 1.78 km SSW of Tres Pinos, California · 15954 days ago · 3 km deep · 94 km away
  39. 2.49 km S of Tres Pinos, California · 15954 days ago · 3 km deep · 97 km away
  40. 2.39 km S of Tres Pinos, California · 15954 days ago · 4 km deep · 97 km away
  41. 2.08 km SSW of Tres Pinos, California · 15953 days ago · 3 km deep · 94 km away
  42. 1.8Central California · 15952 days ago · 3 km deep · 100 km away
  43. 1.93 km NNE of San Leandro, California · 15951 days ago · 4 km deep · 54 km away
  44. 2.26 km NE of Ridgemark, California · 15950 days ago · 7 km deep · 81 km away
  45. 2.09 km ENE of Morgan Hill, California · 15949 days ago · 4 km deep · 43 km away
  46. 1.63 km SSE of Portola Valley, California · 15945 days ago · 10 km deep · 60 km away
  47. 1.611 km ESE of Seven Trees, California · 15944 days ago · 6 km deep · 34 km away
  48. 3.05 km WNW of San Juan Bautista, California · 15944 days ago · 7 km deep · 77 km away
  49. 1.69 km NE of San Martin, California · 15943 days ago · 8 km deep · 44 km away
  50. 2.49 km E of Gilroy, California · 15943 days ago · 8 km deep · 60 km away
  51. 2.026 km WNW of Diablo Grande, California · 15943 days ago · 4 km deep · 6 km away
  52. 1.56 km WNW of Hollister, California · 15943 days ago · 6 km deep · 75 km away
  53. 1.5Northern California · 15940 days ago · 7 km deep · 31 km away
  54. 2.88 km ESE of East Foothills, California · 15938 days ago · 6 km deep · 24 km away
  55. 3.04 km NNE of Fremont, California · 15936 days ago · 10 km deep · 33 km away
  56. 1.66 km SSW of Livermore, California · 15934 days ago · 1 km deep · 21 km away
  57. 2.06 km WSW of Gilroy, California · 15934 days ago · 5 km deep · 63 km away
  58. 2.06 km WSW of Gilroy, California · 15934 days ago · 5 km deep · 63 km away
  59. 1.66 km WSW of Gilroy, California · 15934 days ago · 5 km deep · 63 km away
  60. 2.611 km NW of Davenport, California · 15933 days ago · 14 km deep · 79 km away

The first 60 of 76.

Before

  1. 2.511 km S of Tres Pinos, California · 15986 days ago · 6 km deep · 100 km away
  2. 3.29 km NE of San Juan Bautista, California · 15989 days ago · 5 km deep · 71 km away
  3. 2.016 km E of Seven Trees, California · 15989 days ago · 7 km deep · 30 km away
  4. 1.919 km SSW of Volta, California · 15990 days ago · 6 km deep · 86 km away
  5. 1.63 km W of San Juan Bautista, California · 15990 days ago · 6 km deep · 79 km away
  6. 2.83 km W of San Juan Bautista, California · 15990 days ago · 6 km deep · 78 km away
  7. 1.723 km NE of Hollister, California · 15990 days ago · 0 km deep · 71 km away
  8. 2.218 km NE of East Foothills, California · 15991 days ago · 6 km deep · 10 km away
  9. 1.74 km S of Fairview, California · 15991 days ago · 4 km deep · 41 km away
  10. 2.25 km NNW of Pittsburg, California · 15991 days ago · 17 km deep · 64 km away
  11. 2.77 km SSE of Gilroy, California · 15991 days ago · 6 km deep · 68 km away
  12. 1.723 km NE of Hollister, California · 15991 days ago · 0 km deep · 71 km away
  13. 1.61 km S of Communications Hill, California · 15992 days ago · 4 km deep · 39 km away
  14. 2.49 km NNE of San Martin, California · 15992 days ago · 6 km deep · 44 km away
  15. 1.77 km SSW of Ridgemark, California · 15994 days ago · 2 km deep · 91 km away
  16. 2.18 km SSW of Tres Pinos, California · 15994 days ago · 3 km deep · 94 km away
  17. 3.18 km SSW of Tres Pinos, California · 15994 days ago · 3 km deep · 94 km away
  18. 1.94 km ESE of Interlaken, California · 15995 days ago · 10 km deep · 68 km away
  19. 3.14 km ESE of Interlaken, California · 15995 days ago · 12 km deep · 68 km away
  20. 2.31 km SSW of Fairview, California · 15995 days ago · 8 km deep · 43 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1083243. Read Tue, Sep 22, 2026, 9:33 PM UTC.