California earthquakes

M2.0 earthquake 3 km NW of Bayview, California

A magnitude 2.0 earthquake struck 3 km NW of Bayview, California on Mon, Oct 2, 1978, 4:28 PM PDT (23:28 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M2.7 Northern California. This one was a foreshock.

Bayview 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
2.0 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1978-10-02 23:28:39 UTC
Depth
6.6 km (4.1 mi), shallow
Epicenter
38.031° N, 122.347° 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, 0.4 km in depth
Magnitude uncertainty
±0.23
Depth from
From location
Station coverage gap
73°
Stations used
23

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 67 in the 60 days after this one and 31 in the 30 days before it.

After

  1. 2.14 km WSW of Cobb, California · 17531 days ago · 1 km deep · 94 km away
  2. 1.86 km N of Benicia, California · 17530 days ago · 1 km deep · 18 km away
  3. 2.68 km W of Cobb, California · 17528 days ago · 1 km deep · 97 km away
  4. 1.67 km NE of East Foothills, California · 17525 days ago · 11 km deep · 83 km away
  5. 2.7Northern California · 17521 days ago · 4 km deep · 95 km away
  6. 1.63 km SW of Oakville, California · 17521 days ago · 7 km deep · 43 km away
  7. 1.77 km WSW of Cobb, California · 17519 days ago · 1 km deep · 95 km away
  8. 2.42 km NE of Pacheco, California · 17518 days ago · 15 km deep · 26 km away
  9. 2.27 km W of Cobb, California · 17518 days ago · 0 km deep · 96 km away
  10. 1.57 km ESE of Geyserville, California · 17518 days ago · 6 km deep · 84 km away
  11. 1.98 km W of Cobb, California · 17517 days ago · 0 km deep · 96 km away
  12. 1.88 km W of Cobb, California · 17517 days ago · 1 km deep · 96 km away
  13. 1.75 km NE of East Foothills, California · 17515 days ago · 6 km deep · 85 km away
  14. 2.36 km W of Cobb, California · 17515 days ago · 4 km deep · 96 km away
  15. 1.87 km S of Sunol, California · 17515 days ago · 8 km deep · 69 km away
  16. 1.5Northern California · 17514 days ago · 4 km deep · 95 km away
  17. 1.96 km ENE of East Foothills, California · 17514 days ago · 8 km deep · 87 km away
  18. 2.17 km WSW of Cobb, California · 17514 days ago · 0 km deep · 95 km away
  19. 1.87 km W of Cobb, California · 17514 days ago · 3 km deep · 96 km away
  20. 2.09 km E of Moskowite Corner, California · 17513 days ago · 14 km deep · 50 km away
  21. 1.616 km ESE of Hidden Valley Lake, California · 17512 days ago · 5 km deep · 78 km away
  22. 1.716 km ESE of Hidden Valley Lake, California · 17509 days ago · 8 km deep · 78 km away
  23. 2.16 km WSW of Cobb, California · 17509 days ago · 0 km deep · 95 km away
  24. 1.87 km SW of Calistoga, California · 17508 days ago · 5 km deep · 60 km away
  25. 2.612 km ESE of Hidden Valley Lake, California · 17507 days ago · 7 km deep · 82 km away
  26. 1.64 km SSW of Alamo, California · 17506 days ago · 12 km deep · 35 km away
  27. 2.03 km N of East Foothills, California · 17503 days ago · 1 km deep · 83 km away
  28. 1.56 km SSE of Sunol, California · 17503 days ago · 8 km deep · 69 km away
  29. 2.16 km W of Cobb, California · 17502 days ago · 2 km deep · 97 km away
  30. 1.711 km ESE of East Foothills, California · 17502 days ago · 7 km deep · 96 km away
  31. 1.78 km ESE of Alum Rock, California · 17500 days ago · 3 km deep · 94 km away
  32. 1.810 km S of Muir Beach, California · 17500 days ago · 9 km deep · 35 km away
  33. 1.89 km N of Boulder Creek, California · 17498 days ago · 11 km deep · 93 km away
  34. 2.09 km ESE of East Foothills, California · 17498 days ago · 8 km deep · 94 km away
  35. 1.613 km SSE of Livermore, California · 17498 days ago · 2 km deep · 77 km away
  36. 1.62 km SSE of Concord, California · 17498 days ago · 10 km deep · 30 km away
  37. 2.21 km NNE of Montara, California · 17497 days ago · 7 km deep · 55 km away
  38. 1.57 km WSW of Cobb, California · 17497 days ago · 1 km deep · 95 km away
  39. 2.16 km NNE of Chinatown, California · 17496 days ago · 1 km deep · 20 km away
  40. 2.38 km WSW of Cobb, California · 17495 days ago · 4 km deep · 95 km away
  41. 1.77 km W of Cobb, California · 17494 days ago · 4 km deep · 96 km away
  42. 1.66 km W of Cobb, California · 17494 days ago · 3 km deep · 97 km away
  43. 2.017 km ENE of East Foothills, California · 17493 days ago · 5 km deep · 93 km away
  44. 1.616 km E of East Foothills, California · 17493 days ago · 4 km deep · 96 km away
  45. 1.65 km W of Cobb, California · 17492 days ago · 1 km deep · 96 km away
  46. 2.08 km ESE of East Foothills, California · 17490 days ago · 8 km deep · 93 km away
  47. 1.89 km ESE of East Foothills, California · 17490 days ago · 8 km deep · 93 km away
  48. 1.66 km W of Cobb, California · 17490 days ago · 3 km deep · 96 km away
  49. 1.916 km ENE of East Foothills, California · 17489 days ago · 6 km deep · 92 km away
  50. 1.85 km SSW of Saint Helena, California · 17488 days ago · 5 km deep · 49 km away
  51. 2.112 km SSW of Dillon Beach, California · 17487 days ago · 2 km deep · 59 km away
  52. 2.46 km WSW of Cobb, California · 17486 days ago · 3 km deep · 95 km away
  53. 1.810 km ESE of East Foothills, California · 17484 days ago · 8 km deep · 95 km away
  54. 1.510 km ESE of East Foothills, California · 17484 days ago · 8 km deep · 95 km away
  55. 1.610 km W of Cobb, California · 17483 days ago · 0 km deep · 98 km away
  56. 1.57 km WSW of Cobb, California · 17482 days ago · 4 km deep · 95 km away
  57. 1.74 km E of Livermore, California · 17482 days ago · 9 km deep · 68 km away
  58. 1.56 km W of Cobb, California · 17482 days ago · 4 km deep · 95 km away
  59. 1.98 km W of Cobb, California · 17480 days ago · 1 km deep · 96 km away
  60. 2.28 km W of Cobb, California · 17480 days ago · 0 km deep · 96 km away

The first 60 of 67.

Before

  1. 2.48 km ESE of East Foothills, California · 17535 days ago · 1 km deep · 92 km away
  2. 2.48 km WSW of Cobb, California · 17535 days ago · 0 km deep · 95 km away
  3. 1.98 km W of Cobb, California · 17536 days ago · 1 km deep · 96 km away
  4. 1.61 km SSW of Monument Hills, California · 17537 days ago · 9 km deep · 80 km away
  5. 2.06 km WSW of Kenwood, California · 17538 days ago · 7 km deep · 47 km away
  6. 2.93 km ENE of East Foothills, California · 17540 days ago · 1 km deep · 86 km away
  7. 1.78 km W of Cobb, California · 17541 days ago · 1 km deep · 97 km away
  8. 2.77 km W of Cobb, California · 17545 days ago · 4 km deep · 96 km away
  9. 1.96 km ESE of Santa Rosa, California · 17546 days ago · 8 km deep · 50 km away
  10. 2.88 km NW of Broadmoor, California · 17547 days ago · 6 km deep · 38 km away
  11. 4.237km SSW of Half Moon Bay, CA · 17549 days ago · 6 km deep · 100 km away
  12. 2.25 km SE of Alum Rock, California · 17550 days ago · 3 km deep · 92 km away
  13. 2.36 km E of East Foothills, California · 17550 days ago · 7 km deep · 90 km away
  14. 2.17 km W of Cobb, California · 17553 days ago · 1 km deep · 97 km away
  15. 2.412 km SW of Esparto, California · 17554 days ago · 11 km deep · 67 km away
  16. 2.13 km WNW of Monument Hills, California · 17554 days ago · 1 km deep · 81 km away
  17. 2.26 km E of East Foothills, California · 17554 days ago · 7 km deep · 90 km away
  18. 2.46 km ENE of Seven Trees, California · 17556 days ago · 5 km deep · 94 km away
  19. 2.33 km SSE of Cottonwood, California · 17556 days ago · 11 km deep · 75 km away
  20. 1.77 km W of Cobb, California · 17557 days ago · 2 km deep · 97 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1042574. Read Sun, Oct 4, 2026, 7:45 AM UTC.