California earthquakes

M1.9 earthquake 7 km WSW of Cobb, California

A magnitude 1.9 earthquake struck 7 km WSW of Cobb, California on Tue, Oct 17, 1989, 4:09 PM PDT (23:09 UTC), 1 km (1 mi) below the surface.

A larger quake followed: M3.6 22 km NE of Potter Valley, 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
1989-10-17 23:09:06 UTC
Depth
1.2 km (0.7 mi), shallow
Epicenter
38.801° N, 122.803° 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
±0.09
Depth from
From location
Station coverage gap
40°
Stations used
18

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 146 in the 60 days after this one and 93 in the 30 days before it.

After

  1. 2.17 km WSW of Kenwood, California · 13501 days ago · 5 km deep · 49 km away
  2. 2.51 km E of Kenwood, California · 13501 days ago · 0 km deep · 50 km away
  3. 2.67 km W of Cobb, California · 13500 days ago · -1 km deep · 3 km away
  4. 2.08 km W of Cobb, California · 13500 days ago · 0 km deep · 4 km away
  5. 2.77 km NE of Hidden Valley Lake, California · 13500 days ago · 6 km deep · 28 km away
  6. 1.813 km ENE of Angwin, California · 13500 days ago · 4 km deep · 47 km away
  7. 2.48 km W of Cobb, California · 13500 days ago · 1 km deep · 2 km away
  8. 1.67 km NE of Rohnert Park, California · 13499 days ago · 5 km deep · 49 km away
  9. 1.615 km ENE of Angwin, California · 13499 days ago · 0 km deep · 47 km away
  10. 1.95 km W of Cobb, California · 13499 days ago · 1 km deep · 3 km away
  11. 1.921 km N of Upper Lake, California · 13499 days ago · 6 km deep · 61 km away
  12. 1.67 km WSW of Cobb, California · 13498 days ago · 1 km deep · 0 km away
  13. 1.67 km ENE of Lower Lake, California · 13497 days ago · 8 km deep · 28 km away
  14. 1.96 km ENE of Lower Lake, California · 13497 days ago · 7 km deep · 27 km away
  15. 1.512 km ENE of Cloverdale, California · 13497 days ago · 0 km deep · 7 km away
  16. 1.610 km ESE of Hopland, California · 13497 days ago · 6 km deep · 22 km away
  17. 2.014 km ENE of Angwin, California · 13497 days ago · 3 km deep · 47 km away
  18. 1.610 km ESE of Hidden Valley Lake, California · 13497 days ago · 6 km deep · 31 km away
  19. 3.121 km NNE of Upper Lake, California · 13496 days ago · 12 km deep · 61 km away
  20. 1.63 km NNW of Windsor, California · 13496 days ago · 6 km deep · 25 km away
  21. 1.89 km W of Cobb, California · 13494 days ago · 0 km deep · 3 km away
  22. 2.03 km SSW of Cobb, California · 13494 days ago · 1 km deep · 5 km away
  23. 1.913 km ENE of Angwin, California · 13494 days ago · 1 km deep · 46 km away
  24. 1.96 km W of Cobb, California · 13494 days ago · 0 km deep · 2 km away
  25. 1.65 km W of Cobb, California · 13494 days ago · 1 km deep · 3 km away
  26. 1.67 km ESE of Talmage, California · 13493 days ago · 8 km deep · 42 km away
  27. 2.55 km SW of Cobb, California · 13492 days ago · 1 km deep · 3 km away
  28. 2.06 km NE of Brooktrails, California · 13492 days ago · 8 km deep · 90 km away
  29. 2.63 km SSW of Cobb, California · 13491 days ago · 0 km deep · 5 km away
  30. 1.91 km ESE of Redwood Valley, California · 13491 days ago · 2 km deep · 61 km away
  31. 2.24 km WSW of Cobb, California · 13489 days ago · 2 km deep · 3 km away
  32. 2.021 km ENE of Potter Valley, California · 13488 days ago · 4 km deep · 69 km away
  33. 1.922 km SSE of Covelo, California · 13488 days ago · 4 km deep · 95 km away
  34. 1.94 km SE of Calpella, California · 13487 days ago · 4 km deep · 55 km away
  35. 1.66 km E of Willits, California · 13486 days ago · 2 km deep · 79 km away
  36. 2.07 km W of Cobb, California · 13485 days ago · 3 km deep · 2 km away
  37. 1.67 km WSW of Cobb, California · 13484 days ago · 4 km deep · 1 km away
  38. 1.97 km S of Cobb, California · 13484 days ago · 3 km deep · 10 km away
  39. 1.67 km W of Cobb, California · 13481 days ago · 4 km deep · 2 km away
  40. 1.86 km SW of Cobb, California · 13481 days ago · 0 km deep · 3 km away
  41. 1.510 km SE of Hidden Valley Lake, California · 13481 days ago · 5 km deep · 30 km away
  42. 1.79 km WNW of Cobb, California · 13481 days ago · 2 km deep · 5 km away
  43. 3.022 km NE of Potter Valley, California · 13480 days ago · 7 km deep · 74 km away
  44. 2.510 km NNE of Brooktrails, California · 13479 days ago · 9 km deep · 92 km away
  45. 2.115 km NNE of Angwin, California · 13479 days ago · 9 km deep · 37 km away
  46. 3.622 km NE of Potter Valley, California · 13479 days ago · 9 km deep · 74 km away
  47. 2.17 km W of Cobb, California · 13479 days ago · 1 km deep · 4 km away
  48. 2.122 km NE of Potter Valley, California · 13478 days ago · 7 km deep · 74 km away
  49. 1.64 km ENE of Penngrove, California · 13477 days ago · 0 km deep · 57 km away
  50. 1.68 km NNW of Redwood Valley, California · 13477 days ago · 8 km deep · 70 km away
  51. 2.15 km W of Cobb, California · 13476 days ago · 0 km deep · 3 km away
  52. 1.97 km WSW of Cobb, California · 13475 days ago · 1 km deep · 0 km away
  53. 1.95 km NNW of Redwood Valley, California · 13475 days ago · 5 km deep · 67 km away
  54. 2.27 km W of Cobb, California · 13473 days ago · 3 km deep · 1 km away
  55. 2.29 km E of Calpella, California · 13473 days ago · 6 km deep · 54 km away
  56. 1.83 km NW of Forestville, California · 13472 days ago · 4 km deep · 35 km away
  57. 1.66 km W of Cobb, California · 13472 days ago · 2 km deep · 4 km away
  58. 1.69 km W of Cobb, California · 13471 days ago · 0 km deep · 4 km away
  59. 1.7Northern California · 13471 days ago · -1 km deep · 3 km away
  60. 2.09 km W of Cobb, California · 13471 days ago · -1 km deep · 3 km away

The first 60 of 146.

Before

  1. 1.9near the coast of Northern California · 13502 days ago · 5 km deep · 55 km away
  2. 1.84 km WSW of Cobb, California · 13502 days ago · 2 km deep · 3 km away
  3. 2.08 km WSW of Cobb, California · 13503 days ago · 3 km deep · 1 km away
  4. 2.26 km NW of Anchor Bay, California · 13504 days ago · 2 km deep · 71 km away
  5. 1.65 km WSW of Cobb, California · 13504 days ago · 0 km deep · 2 km away
  6. 1.67 km W of Cobb, California · 13505 days ago · 0 km deep · 3 km away
  7. 1.95 km WSW of Cobb, California · 13505 days ago · 0 km deep · 2 km away
  8. 1.86 km W of Cobb, California · 13505 days ago · 1 km deep · 2 km away
  9. 1.66 km WNW of Cobb, California · 13506 days ago · 3 km deep · 4 km away
  10. 1.612 km ENE of Angwin, California · 13506 days ago · 3 km deep · 47 km away
  11. 1.58 km E of Hidden Valley Lake, California · 13506 days ago · 8 km deep · 29 km away
  12. 2.36 km W of Cobb, California · 13507 days ago · 4 km deep · 2 km away
  13. 2.55 km W of Cobb, California · 13508 days ago · -1 km deep · 3 km away
  14. 2.04 km WSW of Cobb, California · 13508 days ago · 2 km deep · 3 km away
  15. 2.06 km W of Cobb, California · 13508 days ago · 2 km deep · 3 km away
  16. 2.87 km W of Cobb, California · 13508 days ago · -1 km deep · 2 km away
  17. 3.26 km W of Cobb, California · 13508 days ago · 1 km deep · 3 km away
  18. 1.724 km NE of Potter Valley, California · 13509 days ago · 11 km deep · 79 km away
  19. 2.024 km NE of Potter Valley, California · 13509 days ago · 11 km deep · 79 km away
  20. 1.921 km NE of Potter Valley, California · 13510 days ago · 7 km deep · 73 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc145613. Read Mon, Oct 5, 2026, 9:52 AM UTC.