California earthquakes

M2.3 earthquake 3 km E of Berkeley, California

A magnitude 2.3 earthquake struck 3 km E of Berkeley, California on Tue, Aug 22, 1978, 6:31 PM PDT (01:31 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.1 26 km WNW of Diablo Grande, 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
2.3 (md), micro
Local time
UTC
1978-08-23 01:31:23 UTC
Depth
10.3 km (6.4 mi), shallow
Epicenter
37.866° N, 122.232° 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
±0.16
Depth from
From location
Station coverage gap
34°
Stations used
40

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 69 in the 60 days after this one and 22 in the 30 days before it.

After

  1. 2.08 km WSW of Saratoga, California · 17563 days ago · 10 km deep · 73 km away
  2. 3.126 km WNW of Diablo Grande, California · 17562 days ago · 5 km deep · 73 km away
  3. 2.63 km WSW of Moskowite Corner, California · 17560 days ago · 5 km deep · 64 km away
  4. 2.43 km W of Moskowite Corner, California · 17560 days ago · 8 km deep · 64 km away
  5. 3.26 km SE of Sunol, California · 17559 days ago · 10 km deep · 49 km away
  6. 3.20 km WSW of Monument Hills, California · 17559 days ago · 8 km deep · 94 km away
  7. 2.115 km SE of Livermore, California · 17558 days ago · 2 km deep · 59 km away
  8. 2.39 km ESE of East Foothills, California · 17558 days ago · 7 km deep · 73 km away
  9. 1.79 km ESE of East Foothills, California · 17558 days ago · 8 km deep · 73 km away
  10. 4.19 km ESE of East Foothills, California · 17558 days ago · 8 km deep · 73 km away
  11. 2.010 km ESE of East Foothills, California · 17558 days ago · 8 km deep · 74 km away
  12. 1.89 km ESE of East Foothills, California · 17558 days ago · 8 km deep · 73 km away
  13. 3.810 km ESE of East Foothills, California · 17558 days ago · 8 km deep · 75 km away
  14. 1.59 km ESE of East Foothills, California · 17558 days ago · 7 km deep · 74 km away
  15. 2.210 km ESE of East Foothills, California · 17558 days ago · 7 km deep · 74 km away
  16. 2.69 km ESE of East Foothills, California · 17558 days ago · 8 km deep · 73 km away
  17. 2.59 km ESE of East Foothills, California · 17558 days ago · 5 km deep · 72 km away
  18. 1.510 km ESE of East Foothills, California · 17558 days ago · 8 km deep · 75 km away
  19. 2.110 km ESE of East Foothills, California · 17558 days ago · 7 km deep · 74 km away
  20. 1.810 km ESE of East Foothills, California · 17558 days ago · 7 km deep · 74 km away
  21. 1.610 km ESE of East Foothills, California · 17558 days ago · 7 km deep · 74 km away
  22. 2.010 km ESE of East Foothills, California · 17558 days ago · 8 km deep · 74 km away
  23. 2.410 km ESE of East Foothills, California · 17557 days ago · 8 km deep · 74 km away
  24. 2.22 km SSE of Monument Hills, California · 17557 days ago · 9 km deep · 92 km away
  25. 1.510 km ESE of East Foothills, California · 17557 days ago · 8 km deep · 74 km away
  26. 1.716 km NE of East Foothills, California · 17556 days ago · 6 km deep · 64 km away
  27. 1.710 km ESE of East Foothills, California · 17556 days ago · 7 km deep · 74 km away
  28. 2.02 km N of San Ramon, California · 17555 days ago · 8 km deep · 23 km away
  29. 2.46 km ENE of Seven Trees, California · 17555 days ago · 5 km deep · 73 km away
  30. 2.46 km ENE of Seven Trees, California · 17555 days ago · 6 km deep · 73 km away
  31. 3.36 km ENE of Seven Trees, California · 17555 days ago · 5 km deep · 73 km away
  32. 2.09 km NE of Inverness, California · 17554 days ago · 4 km deep · 57 km away
  33. 1.713 km E of Seven Trees, California · 17553 days ago · 1 km deep · 80 km away
  34. 2.66 km ENE of Seven Trees, California · 17550 days ago · 5 km deep · 73 km away
  35. 2.24 km SE of Cottonwood, California · 17550 days ago · 11 km deep · 89 km away
  36. 2.21 km SW of Monument Hills, California · 17550 days ago · 10 km deep · 92 km away
  37. 1.94 km SSW of Monument Hills, California · 17550 days ago · 16 km deep · 89 km away
  38. 1.92 km S of Monument Hills, California · 17549 days ago · 10 km deep · 92 km away
  39. 1.81 km SE of East Foothills, California · 17548 days ago · 5 km deep · 67 km away
  40. 4.24 km SSW of Monument Hills, California · 17547 days ago · 10 km deep · 90 km away
  41. 2.02 km S of Monument Hills, California · 17547 days ago · 9 km deep · 92 km away
  42. 3.32 km SW of Monument Hills, California · 17547 days ago · 12 km deep · 91 km away
  43. 2.33 km SSE of Cottonwood, California · 17546 days ago · 11 km deep · 88 km away
  44. 2.46 km ENE of Seven Trees, California · 17545 days ago · 5 km deep · 73 km away
  45. 2.26 km E of East Foothills, California · 17544 days ago · 7 km deep · 69 km away
  46. 2.13 km WNW of Monument Hills, California · 17544 days ago · 1 km deep · 94 km away
  47. 2.412 km SW of Esparto, California · 17544 days ago · 11 km deep · 82 km away
  48. 2.36 km E of East Foothills, California · 17540 days ago · 7 km deep · 69 km away
  49. 2.25 km SE of Alum Rock, California · 17540 days ago · 3 km deep · 71 km away
  50. 4.237km SSW of Half Moon Bay, CA · 17538 days ago · 6 km deep · 85 km away
  51. 2.88 km NW of Broadmoor, California · 17536 days ago · 6 km deep · 32 km away
  52. 2.39 km NE of San Martin, California · 17536 days ago · 7 km deep · 100 km away
  53. 1.96 km ESE of Santa Rosa, California · 17535 days ago · 8 km deep · 71 km away
  54. 2.93 km ENE of East Foothills, California · 17529 days ago · 1 km deep · 66 km away
  55. 2.06 km WSW of Kenwood, California · 17528 days ago · 7 km deep · 68 km away
  56. 1.61 km SSW of Monument Hills, California · 17527 days ago · 9 km deep · 92 km away
  57. 1.64 km NE of Day Valley, California · 17526 days ago · 12 km deep · 97 km away
  58. 2.016 km E of Seven Trees, California · 17526 days ago · 7 km deep · 82 km away
  59. 2.48 km ESE of East Foothills, California · 17525 days ago · 1 km deep · 72 km away
  60. 2.03 km NW of Bayview, California · 17523 days ago · 7 km deep · 21 km away

The first 60 of 69.

Before

  1. 2.31 km SW of Los Altos Hills, California · 17564 days ago · 4 km deep · 55 km away
  2. 1.68 km N of Morgan Hill, California · 17565 days ago · 4 km deep · 90 km away
  3. 2.814 km E of Angwin, California · 17567 days ago · 7 km deep · 79 km away
  4. 2.715 km E of Angwin, California · 17569 days ago · 0 km deep · 79 km away
  5. 1.67 km NNE of Corralitos, California · 17570 days ago · 13 km deep · 99 km away
  6. 1.810 km SE of Sunol, California · 17572 days ago · 5 km deep · 53 km away
  7. 1.91 km ENE of Alamo, California · 17572 days ago · 7 km deep · 19 km away
  8. 2.46 km NE of East Foothills, California · 17575 days ago · 8 km deep · 65 km away
  9. 2.32 km NE of East Foothills, California · 17576 days ago · 0 km deep · 64 km away
  10. 1.85 km NNE of Crockett, California · 17577 days ago · 1 km deep · 26 km away
  11. 2.08 km NE of Inverness, California · 17578 days ago · 0 km deep · 58 km away
  12. 2.05 km SSE of Sunol, California · 17578 days ago · 8 km deep · 48 km away
  13. 1.512 km SE of Livermore, California · 17581 days ago · 4 km deep · 57 km away
  14. 2.03 km E of San Leandro, California · 17584 days ago · 9 km deep · 18 km away
  15. 2.02 km E of San Leandro, California · 17587 days ago · 10 km deep · 18 km away
  16. 2.13 km E of San Leandro, California · 17587 days ago · 9 km deep · 18 km away
  17. 3.03 km E of San Leandro, California · 17587 days ago · 10 km deep · 18 km away
  18. 2.11 km NNE of Diablo, California · 17589 days ago · 7 km deep · 25 km away
  19. 1.81 km NNE of Inverness, California · 17589 days ago · 5 km deep · 61 km away
  20. 2.13 km NNE of Castro Valley, California · 17591 days ago · 10 km deep · 21 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1041818. Read Thu, Sep 24, 2026, 12:13 AM UTC.