California earthquakes

M1.9 earthquake 6 km W of Cobb, California

A magnitude 1.9 earthquake struck 6 km W of Cobb, California on Wed, May 12, 1976, 7:35 AM PDT (14:35 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.4 Northern California. This one was a foreshock.

Cobb 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
1.9 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1976-05-12 14:35:28 UTC
Depth
3.2 km (2.0 mi), shallow
Epicenter
38.816° N, 122.798° 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, 0.6 km in depth
Magnitude uncertainty
±0.40
Depth from
From location
Station coverage gap
52°
Stations used
17

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 84 in the 60 days after this one and 34 in the 30 days before it.

After

  1. 1.97 km W of Cobb, California · 18406 days ago · 4 km deep · 1 km away
  2. 1.87 km W of Cobb, California · 18405 days ago · 3 km deep · 1 km away
  3. 1.58 km WSW of Cobb, California · 18405 days ago · 0 km deep · 2 km away
  4. 1.917 km NNE of Angwin, California · 18401 days ago · 8 km deep · 38 km away
  5. 1.916 km NNE of Angwin, California · 18401 days ago · 7 km deep · 37 km away
  6. 1.917 km ESE of Hidden Valley Lake, California · 18401 days ago · 11 km deep · 38 km away
  7. 1.817 km NNE of Angwin, California · 18401 days ago · 9 km deep · 38 km away
  8. 2.38 km WSW of Cobb, California · 18401 days ago · 4 km deep · 2 km away
  9. 1.86 km WSW of Cobb, California · 18401 days ago · -1 km deep · 1 km away
  10. 2.26 km WSW of Cobb, California · 18401 days ago · 0 km deep · 1 km away
  11. 1.56 km WSW of Cobb, California · 18401 days ago · 0 km deep · 1 km away
  12. 1.88 km W of Cobb, California · 18400 days ago · 0 km deep · 2 km away
  13. 2.710 km W of Cobb, California · 18400 days ago · 2 km deep · 4 km away
  14. 2.16 km W of Cobb, California · 18400 days ago · 3 km deep · 0 km away
  15. 2.76 km W of Cobb, California · 18400 days ago · 3 km deep · 1 km away
  16. 1.77 km WSW of Cobb, California · 18399 days ago · 2 km deep · 1 km away
  17. 2.510 km W of Philo, California · 18399 days ago · 2 km deep · 73 km away
  18. 1.64 km WSW of Cobb, California · 18398 days ago · 4 km deep · 2 km away
  19. 1.83 km NNE of Larkfield-Wikiup, California · 18397 days ago · 7 km deep · 31 km away
  20. 1.67 km WSW of Cobb, California · 18396 days ago · 2 km deep · 2 km away
  21. 2.1Northern California · 18396 days ago · 7 km deep · 59 km away
  22. 2.010 km E of Hidden Valley Lake, California · 18393 days ago · 9 km deep · 31 km away
  23. 2.118 km NE of Upper Lake, California · 18393 days ago · 6 km deep · 53 km away
  24. 2.06 km WSW of Cobb, California · 18393 days ago · -1 km deep · 1 km away
  25. 1.82 km SE of Clear Lake Riviera, California · 18392 days ago · 1 km deep · 16 km away
  26. 2.02 km ESE of Clear Lake Riviera, California · 18392 days ago · 2 km deep · 17 km away
  27. 3.4Northern California · 18391 days ago · 8 km deep · 54 km away
  28. 1.98 km WSW of Cobb, California · 18391 days ago · 0 km deep · 2 km away
  29. 2.49 km ESE of Hidden Valley Lake, California · 18391 days ago · 8 km deep · 30 km away
  30. 2.27 km W of Cobb, California · 18390 days ago · 3 km deep · 1 km away
  31. 2.410 km E of Hidden Valley Lake, California · 18389 days ago · 9 km deep · 31 km away
  32. 2.427 km WNW of Stonyford, California · 18389 days ago · 4 km deep · 74 km away
  33. 2.12 km E of Geyserville, California · 18387 days ago · 5 km deep · 14 km away
  34. 1.68 km WSW of Cobb, California · 18387 days ago · 0 km deep · 3 km away
  35. 2.07 km W of Cobb, California · 18387 days ago · 3 km deep · 1 km away
  36. 2.26 km W of Cobb, California · 18386 days ago · 3 km deep · 0 km away
  37. 2.07 km WSW of Cobb, California · 18386 days ago · 4 km deep · 2 km away
  38. 1.810 km W of Cobb, California · 18384 days ago · 1 km deep · 4 km away
  39. 1.76 km WSW of Cobb, California · 18383 days ago · 1 km deep · 1 km away
  40. 2.26 km WSW of Cobb, California · 18383 days ago · 1 km deep · 1 km away
  41. 1.96 km W of Cobb, California · 18381 days ago · 3 km deep · 1 km away
  42. 1.87 km WSW of Cobb, California · 18381 days ago · 3 km deep · 2 km away
  43. 2.37 km WSW of Cobb, California · 18380 days ago · 2 km deep · 2 km away
  44. 1.85 km W of Healdsburg, California · 18378 days ago · 2 km deep · 26 km away
  45. 2.412 km WSW of Hopland, California · 18372 days ago · 0 km deep · 42 km away
  46. 2.36 km W of Cobb, California · 18372 days ago · 3 km deep · 1 km away
  47. 2.11 km ENE of Larkfield-Wikiup, California · 18371 days ago · 3 km deep · 34 km away
  48. 2.04 km WSW of Cobb, California · 18370 days ago · 1 km deep · 3 km away
  49. 1.96 km W of Cobb, California · 18370 days ago · 0 km deep · 0 km away
  50. 1.74 km WSW of Cobb, California · 18370 days ago · 4 km deep · 3 km away
  51. 2.36 km W of Cobb, California · 18369 days ago · 4 km deep · 1 km away
  52. 1.710 km ESE of Hopland, California · 18368 days ago · 4 km deep · 23 km away
  53. 1.97 km WSW of Cobb, California · 18367 days ago · 0 km deep · 2 km away
  54. 1.86 km WSW of Cobb, California · 18367 days ago · 0 km deep · 2 km away
  55. 2.019 km W of Stonyford, California · 18365 days ago · 1 km deep · 59 km away
  56. 2.08 km W of Cobb, California · 18364 days ago · -1 km deep · 2 km away
  57. 2.29 km NE of Cloverdale, California · 18364 days ago · 4 km deep · 15 km away
  58. 1.97 km E of Hopland, California · 18363 days ago · 4 km deep · 27 km away
  59. 1.95 km E of Redwood Valley, California · 18361 days ago · 2 km deep · 59 km away
  60. 1.67 km W of Cobb, California · 18360 days ago · 0 km deep · 1 km away

The first 60 of 84.

Before

  1. 3.17 km W of Cobb, California · 18406 days ago · 4 km deep · 1 km away
  2. 1.95 km NNE of Clearlake, California · 18408 days ago · 3 km deep · 27 km away
  3. 1.96 km W of Cobb, California · 18409 days ago · 3 km deep · 0 km away
  4. 1.78 km N of Cloverdale, California · 18410 days ago · 3 km deep · 19 km away
  5. 3.04 km ENE of Brooktrails, California · 18412 days ago · -1 km deep · 85 km away
  6. 1.96 km W of Cobb, California · 18413 days ago · 3 km deep · 0 km away
  7. 2.17 km WNW of Upper Lake, California · 18413 days ago · 15 km deep · 44 km away
  8. 1.96 km WSW of Cobb, California · 18415 days ago · 4 km deep · 1 km away
  9. 2.16 km E of Santa Rosa, California · 18415 days ago · 9 km deep · 45 km away
  10. 2.28 km WSW of Cobb, California · 18417 days ago · 4 km deep · 3 km away
  11. 2.66 km W of Cobb, California · 18417 days ago · 4 km deep · 0 km away
  12. 1.96 km SW of Lower Lake, California · 18418 days ago · 2 km deep · 13 km away
  13. 2.0near the coast of Northern California · 18420 days ago · -1 km deep · 33 km away
  14. 1.77 km W of Cobb, California · 18421 days ago · 3 km deep · 1 km away
  15. 2.17 km NNE of Hopland, California · 18422 days ago · 1 km deep · 34 km away
  16. 2.411 km ESE of Hidden Valley Lake, California · 18423 days ago · 7 km deep · 32 km away
  17. 1.96 km W of Cobb, California · 18424 days ago · 4 km deep · 0 km away
  18. 1.7Northern California · 18424 days ago · 2 km deep · 2 km away
  19. 1.95 km SW of Cobb, California · 18425 days ago · 5 km deep · 5 km away
  20. 2.87 km NE of Hopland, California · 18425 days ago · 3 km deep · 33 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1029673. Read Sat, Oct 3, 2026, 7:10 PM UTC.