California earthquakes

M1.6 earthquake 5 km SW of Cobb, California

A magnitude 1.6 earthquake struck 5 km SW of Cobb, California on Wed, Nov 9, 1983, 12:03 PM PST (20:03 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M3.1 7 km W of Cobb, 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.

Open the live map with earthquakes

The earthquake

Magnitude
1.6 (md), micro
Local time
UTC
1983-11-09 20:03:06 UTC
Depth
-0.2 km (-0.1 mi), shallow
Epicenter
38.794° N, 122.772° 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
±0.18
Depth from
From location
Station coverage gap
57°
Stations used
12

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 183 in the 60 days after this one and 113 in the 30 days before it.

After

  1. 1.84 km S of Cobb, California · 15666 days ago · 1 km deep · 4 km away
  2. 1.97 km W of Cobb, California · 15665 days ago · 1 km deep · 5 km away
  3. 2.16 km ENE of Santa Rosa, California · 15665 days ago · 4 km deep · 37 km away
  4. 3.116 km NE of Brooktrails, California · 15664 days ago · -1 km deep · 91 km away
  5. 1.65 km SW of Cobb, California · 15664 days ago · -1 km deep · 0 km away
  6. 1.64 km WSW of Cobb, California · 15664 days ago · 1 km deep · 1 km away
  7. 1.87 km W of Cobb, California · 15664 days ago · 4 km deep · 4 km away
  8. 1.56 km W of Cobb, California · 15664 days ago · 2 km deep · 3 km away
  9. 1.7Northern California · 15664 days ago · -1 km deep · 4 km away
  10. 1.7Northern California · 15664 days ago · 1 km deep · 3 km away
  11. 2.76 km N of Cobb, California · 15663 days ago · 1 km deep · 11 km away
  12. 1.96 km NNE of Cobb, California · 15663 days ago · 2 km deep · 11 km away
  13. 2.37 km WSW of Cobb, California · 15662 days ago · 3 km deep · 4 km away
  14. 1.65 km SW of Cobb, California · 15662 days ago · 1 km deep · 2 km away
  15. 1.76 km W of Cobb, California · 15662 days ago · 3 km deep · 3 km away
  16. 2.56 km WSW of Cobb, California · 15662 days ago · 0 km deep · 2 km away
  17. 1.97 km W of Cobb, California · 15661 days ago · 0 km deep · 4 km away
  18. 1.69 km WSW of Cobb, California · 15661 days ago · 3 km deep · 5 km away
  19. 1.85 km SW of Cobb, California · 15660 days ago · 0 km deep · 0 km away
  20. 2.9Northern California · 15660 days ago · 2 km deep · 12 km away
  21. 1.86 km WNW of Cobb, California · 15660 days ago · 1 km deep · 5 km away
  22. 1.81 km NNW of Point Reyes Station, California · 15660 days ago · 2 km deep · 79 km away
  23. 2.26 km WSW of Cobb, California · 15659 days ago · 1 km deep · 2 km away
  24. 2.05 km SW of Cobb, California · 15658 days ago · 0 km deep · 0 km away
  25. 1.73 km E of Lower Lake, California · 15657 days ago · 3 km deep · 21 km away
  26. 1.916 km ENE of Potter Valley, California · 15657 days ago · 7 km deep · 67 km away
  27. 1.68 km ESE of Hidden Valley Lake, California · 15656 days ago · 8 km deep · 27 km away
  28. 1.55 km SW of Cobb, California · 15656 days ago · 0 km deep · 1 km away
  29. 1.96 km W of Cobb, California · 15656 days ago · -1 km deep · 3 km away
  30. 1.74 km W of Cobb, California · 15656 days ago · 0 km deep · 4 km away
  31. 2.15 km SW of Cobb, California · 15656 days ago · 0 km deep · 1 km away
  32. 1.86 km W of Cobb, California · 15656 days ago · 3 km deep · 3 km away
  33. 1.57 km WSW of Cobb, California · 15656 days ago · 2 km deep · 3 km away
  34. 2.319 km NNE of Upper Lake, California · 15655 days ago · 7 km deep · 57 km away
  35. 1.76 km W of Cobb, California · 15655 days ago · 3 km deep · 4 km away
  36. 1.67 km WSW of Cobb, California · 15655 days ago · 0 km deep · 3 km away
  37. 2.36 km W of Cobb, California · 15655 days ago · 3 km deep · 4 km away
  38. 2.45 km W of Glen Ellen, California · 15653 days ago · 6 km deep · 50 km away
  39. 1.67 km W of Cobb, California · 15653 days ago · 1 km deep · 3 km away
  40. 1.84 km ENE of Brooktrails, California · 15653 days ago · 9 km deep · 88 km away
  41. 1.616 km ENE of Potter Valley, California · 15653 days ago · 11 km deep · 67 km away
  42. 1.64 km NNW of Cobb, California · 15652 days ago · 1 km deep · 7 km away
  43. 1.66 km NNE of Cobb, California · 15652 days ago · 0 km deep · 12 km away
  44. 1.75 km WSW of Cobb, California · 15652 days ago · 1 km deep · 1 km away
  45. 1.75 km W of Glen Ellen, California · 15651 days ago · 4 km deep · 50 km away
  46. 1.67 km WSW of Cobb, California · 15651 days ago · 2 km deep · 4 km away
  47. 2.96 km W of Cobb, California · 15651 days ago · 3 km deep · 4 km away
  48. 1.77 km W of Cobb, California · 15650 days ago · 3 km deep · 4 km away
  49. 1.65 km WSW of Cobb, California · 15650 days ago · 1 km deep · 1 km away
  50. 2.16 km WSW of Cobb, California · 15649 days ago · 3 km deep · 2 km away
  51. 1.66 km W of Cobb, California · 15649 days ago · 1 km deep · 4 km away
  52. 2.018 km NE of Upper Lake, California · 15649 days ago · 7 km deep · 56 km away
  53. 2.57 km WSW of Cobb, California · 15649 days ago · 1 km deep · 3 km away
  54. 1.78 km W of Cobb, California · 15649 days ago · -1 km deep · 4 km away
  55. 1.67 km WSW of Cobb, California · 15649 days ago · 1 km deep · 3 km away
  56. 2.013 km NNE of Brooktrails, California · 15649 days ago · 2 km deep · 99 km away
  57. 1.67 km W of Cobb, California · 15649 days ago · 1 km deep · 4 km away
  58. 2.4Northern California · 15649 days ago · 1 km deep · 5 km away
  59. 1.78 km W of Cobb, California · 15649 days ago · 1 km deep · 5 km away
  60. 1.88 km W of Cobb, California · 15649 days ago · -1 km deep · 5 km away

The first 60 of 183.

Before

  1. 2.05 km SSW of Cobb, California · 15666 days ago · -1 km deep · 4 km away
  2. 1.57 km WSW of Cobb, California · 15666 days ago · -1 km deep · 3 km away
  3. 1.86 km W of Cobb, California · 15666 days ago · 3 km deep · 4 km away
  4. 1.86 km W of Cobb, California · 15667 days ago · 3 km deep · 3 km away
  5. 1.79 km NE of Hidden Valley Lake, California · 15667 days ago · 2 km deep · 26 km away
  6. 1.94 km N of Benicia, California · 15667 days ago · 4 km deep · 95 km away
  7. 2.46 km SW of Cobb, California · 15667 days ago · 1 km deep · 1 km away
  8. 2.216 km SSW of Point Reyes Station, California · 15667 days ago · 5 km deep · 96 km away
  9. 1.85 km SW of Cobb, California · 15667 days ago · 1 km deep · 1 km away
  10. 2.413 km W of Jenner, California · 15667 days ago · 0 km deep · 57 km away
  11. 2.012 km WNW of Jenner, California · 15667 days ago · 1 km deep · 55 km away
  12. 2.213 km WNW of Jenner, California · 15668 days ago · 0 km deep · 56 km away
  13. 1.86 km W of Cobb, California · 15668 days ago · 3 km deep · 4 km away
  14. 1.53 km ESE of Roseland, California · 15668 days ago · 6 km deep · 43 km away
  15. 1.613 km W of Cloverdale, California · 15669 days ago · 15 km deep · 34 km away
  16. 1.95 km W of Cobb, California · 15669 days ago · 0 km deep · 4 km away
  17. 1.55 km SW of Cobb, California · 15669 days ago · 0 km deep · 0 km away
  18. 2.05 km SW of Cobb, California · 15669 days ago · -1 km deep · 0 km away
  19. 1.75 km SW of Cobb, California · 15669 days ago · 0 km deep · 1 km away
  20. 1.610 km SSW of Hopland, California · 15669 days ago · -1 km deep · 34 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1106552. Read Wed, Sep 30, 2026, 11:22 AM UTC.