California earthquakes

M2.1 earthquake 3 km E of Berkeley, California

A magnitude 2.1 earthquake struck 3 km E of Berkeley, California on Wed, Sep 21, 1983, 12:52 PM PDT (19:52 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.6 12 km ESE of East Foothills, 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
2.1 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1983-09-21 19:52:43 UTC
Depth
10.3 km (6.4 mi), shallow
Epicenter
37.871° N, 122.236° 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
±0.13
Depth from
From location
Station coverage gap
47°
Stations used
29

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 66 in the 60 days after this one and 29 in the 30 days before it.

After

  1. 2.53 km E of Berkeley, California · 15716 days ago · 10 km deep · 0 km away
  2. 2.06 km SSE of Byron, California · 15716 days ago · 12 km deep · 55 km away
  3. 1.93 km NE of Santa Rosa, California · 15714 days ago · 8 km deep · 77 km away
  4. 1.610 km WSW of Brentwood, California · 15713 days ago · 9 km deep · 38 km away
  5. 1.85 km WSW of Cupertino, California · 15713 days ago · 5 km deep · 65 km away
  6. 1.54 km WSW of Cupertino, California · 15713 days ago · 5 km deep · 65 km away
  7. 2.111 km E of Blackhawk, California · 15713 days ago · 12 km deep · 41 km away
  8. 1.91 km NE of Pittsburg, California · 15713 days ago · 17 km deep · 36 km away
  9. 2.021 km SW of Diablo Grande, California · 15713 days ago · 0 km deep · 93 km away
  10. 2.02 km E of Pacifica, California · 15712 days ago · 8 km deep · 35 km away
  11. 2.92 km NNE of Piedmont, California · 15710 days ago · 5 km deep · 3 km away
  12. 1.61 km ESE of North Gate, California · 15710 days ago · 11 km deep · 22 km away
  13. 2.02 km N of Piedmont, California · 15709 days ago · 3 km deep · 3 km away
  14. 1.99 km ESE of East Foothills, California · 15708 days ago · 0 km deep · 75 km away
  15. 1.81 km NW of Larkfield-Wikiup, California · 15706 days ago · 0 km deep · 86 km away
  16. 1.514 km SSE of Livermore, California · 15704 days ago · 8 km deep · 59 km away
  17. 1.72 km ESE of Larkfield-Wikiup, California · 15702 days ago · 2 km deep · 82 km away
  18. 2.23 km NE of Green Valley, California · 15702 days ago · 10 km deep · 46 km away
  19. 2.58 km NE of Morgan Hill, California · 15700 days ago · 3 km deep · 96 km away
  20. 1.57 km NE of Livermore, California · 15697 days ago · 9 km deep · 50 km away
  21. 1.88 km ENE of Livermore, California · 15697 days ago · 8 km deep · 51 km away
  22. 3.17 km E of East Foothills, California · 15697 days ago · 8 km deep · 71 km away
  23. 2.67 km E of East Foothills, California · 15697 days ago · 8 km deep · 71 km away
  24. 3.012 km WSW of Byron, California · 15697 days ago · 12 km deep · 43 km away
  25. 2.314 km S of Mountain House, California · 15695 days ago · 9 km deep · 63 km away
  26. 1.910 km SSE of Muir Beach, California · 15694 days ago · 11 km deep · 30 km away
  27. 1.77 km WNW of Broadmoor, California · 15694 days ago · 6 km deep · 33 km away
  28. 2.12 km S of Diablo, California · 15694 days ago · 7 km deep · 25 km away
  29. 2.111 km NNE of Livermore, California · 15691 days ago · 13 km deep · 44 km away
  30. 1.613 km NW of Moskowite Corner, California · 15690 days ago · 9 km deep · 75 km away
  31. 2.00 km NNW of Visitacion Valley, California · 15690 days ago · 7 km deep · 23 km away
  32. 1.73 km E of Vine Hill, California · 15689 days ago · 8 km deep · 22 km away
  33. 1.93 km NE of Fremont, California · 15689 days ago · 4 km deep · 41 km away
  34. 1.814 km E of Seven Trees, California · 15688 days ago · 7 km deep · 79 km away
  35. 1.84 km ESE of South San Francisco, California · 15687 days ago · 7 km deep · 28 km away
  36. 1.55 km NE of Black Point-Green Point, California · 15687 days ago · 5 km deep · 38 km away
  37. 1.98 km ENE of Morgan Hill, California · 15685 days ago · 2 km deep · 98 km away
  38. 3.612 km ESE of East Foothills, California · 15684 days ago · 7 km deep · 77 km away
  39. 2.23 km W of Livermore, California · 15684 days ago · 14 km deep · 43 km away
  40. 2.43 km W of Livermore, California · 15684 days ago · 16 km deep · 43 km away
  41. 1.68 km NE of Milpitas, California · 15684 days ago · 6 km deep · 55 km away
  42. 2.03 km NNE of Santa Rosa, California · 15684 days ago · 7 km deep · 77 km away
  43. 1.91 km WSW of Dublin, California · 15684 days ago · 8 km deep · 32 km away
  44. 1.71 km WSW of Dublin, California · 15684 days ago · 8 km deep · 32 km away
  45. 1.614 km E of Seven Trees, California · 15679 days ago · 2 km deep · 81 km away
  46. 1.84 km SE of North Gate, California · 15678 days ago · 11 km deep · 24 km away
  47. 1.75 km NE of Black Point-Green Point, California · 15676 days ago · 6 km deep · 37 km away
  48. 2.44 km ESE of Sonoma, California · 15676 days ago · 8 km deep · 48 km away
  49. 2.61 km NNE of San Pablo, California · 15675 days ago · 5 km deep · 14 km away
  50. 1.52 km S of Concord, California · 15673 days ago · 11 km deep · 21 km away
  51. 2.07 km SW of Calistoga, California · 15672 days ago · 7 km deep · 82 km away
  52. 1.61 km W of Visitacion Valley, California · 15670 days ago · 10 km deep · 23 km away
  53. 1.82 km N of Blackhawk, California · 15670 days ago · 9 km deep · 28 km away
  54. 1.53 km ESE of Roseland, California · 15669 days ago · 6 km deep · 72 km away
  55. 2.216 km SSW of Point Reyes Station, California · 15668 days ago · 5 km deep · 59 km away
  56. 1.94 km N of Benicia, California · 15668 days ago · 4 km deep · 26 km away
  57. 1.79 km ENE of Milpitas, California · 15668 days ago · 7 km deep · 58 km away
  58. 2.012 km ESE of East Foothills, California · 15667 days ago · 7 km deep · 77 km away
  59. 2.16 km ENE of Santa Rosa, California · 15666 days ago · 4 km deep · 76 km away
  60. 1.59 km NNE of East Foothills, California · 15665 days ago · 7 km deep · 61 km away

The first 60 of 66.

Before

  1. 2.513 km E of Seven Trees, California · 15717 days ago · 3 km deep · 80 km away
  2. 2.76 km N of San Leandro, California · 15717 days ago · 10 km deep · 11 km away
  3. 2.612 km SE of Suisun, California · 15718 days ago · 19 km deep · 41 km away
  4. 2.09 km SE of Suisun, California · 15718 days ago · 5 km deep · 42 km away
  5. 1.813 km ESE of Hidden Valley Lake, California · 15718 days ago · -1 km deep · 98 km away
  6. 1.810 km ENE of Blackhawk, California · 15718 days ago · 3 km deep · 38 km away
  7. 2.04 km ESE of Vallejo, California · 15719 days ago · 5 km deep · 25 km away
  8. 1.82 km SSW of Fairview, California · 15720 days ago · 5 km deep · 29 km away
  9. 2.311 km ESE of Hidden Valley Lake, California · 15720 days ago · 4 km deep · 100 km away
  10. 2.36 km SW of Loyola, California · 15720 days ago · 7 km deep · 64 km away
  11. 2.314 km W of Rio Vista, California · 15723 days ago · 15 km deep · 46 km away
  12. 1.73 km W of Livermore, California · 15724 days ago · 14 km deep · 43 km away
  13. 2.31 km NW of Concord, California · 15725 days ago · 15 km deep · 21 km away
  14. 1.81 km SW of Hillsborough, California · 15726 days ago · 7 km deep · 37 km away
  15. 1.90 km N of Kensington, California · 15726 days ago · 6 km deep · 7 km away
  16. 1.89 km S of Moskowite Corner, California · 15727 days ago · 7 km deep · 55 km away
  17. 3.216 km N of Morgan Hill, California · 15728 days ago · 9 km deep · 84 km away
  18. 1.63 km NNW of Clyde, California · 15728 days ago · 2 km deep · 26 km away
  19. 3.03 km W of Livermore, California · 15729 days ago · 16 km deep · 43 km away
  20. 2.110 km E of Blackhawk, California · 15732 days ago · 5 km deep · 39 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1103251. Read Thu, Oct 1, 2026, 1:04 PM UTC.