California earthquakes

M1.6 earthquake 6 km WSW of Cobb, California

A magnitude 1.6 earthquake struck 6 km WSW of Cobb, California on Thu, Dec 31, 1981, 11:41 PM PST (07:41 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M3.5 16 km E of Lower Lake, 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
1982-01-01 07:41:44 UTC
Depth
0.2 km (0.1 mi), shallow
Epicenter
38.803° N, 122.791° 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 0.7 km horizontally, 0.4 km in depth
Magnitude uncertainty
±0.64
Depth from
From location
Station coverage gap
113°
Stations used
8

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 149 in the 60 days after this one and 108 in the 30 days before it.

After

  1. 2.16 km ENE of Willits, California · 16341 days ago · 3 km deep · 82 km away
  2. 1.87 km W of Cobb, California · 16341 days ago · 2 km deep · 3 km away
  3. 1.69 km WSW of Cobb, California · 16341 days ago · 2 km deep · 3 km away
  4. 2.07 km W of Cobb, California · 16341 days ago · 1 km deep · 2 km away
  5. 2.09 km W of Healdsburg, California · 16340 days ago · 0 km deep · 25 km away
  6. 1.56 km W of Cobb, California · 16339 days ago · 1 km deep · 1 km away
  7. 1.912 km NE of Lucerne, California · 16339 days ago · 0 km deep · 41 km away
  8. 1.67 km WSW of Cobb, California · 16338 days ago · 0 km deep · 2 km away
  9. 2.65 km WSW of Cobb, California · 16338 days ago · -1 km deep · 1 km away
  10. 2.47 km WSW of Cobb, California · 16337 days ago · 3 km deep · 2 km away
  11. 2.04 km E of Penngrove, California · 16336 days ago · 5 km deep · 58 km away
  12. 2.44 km WSW of Cobb, California · 16336 days ago · 1 km deep · 2 km away
  13. 2.54 km SW of Rutherford, California · 16336 days ago · 8 km deep · 50 km away
  14. 2.013 km NE of Angwin, California · 16336 days ago · 11 km deep · 40 km away
  15. 2.35 km E of Penngrove, California · 16336 days ago · 6 km deep · 58 km away
  16. 2.47 km W of Cobb, California · 16336 days ago · 4 km deep · 2 km away
  17. 1.87 km E of Willits, California · 16335 days ago · 7 km deep · 79 km away
  18. 2.65 km WSW of Cobb, California · 16335 days ago · 0 km deep · 1 km away
  19. 1.84 km E of Penngrove, California · 16333 days ago · 0 km deep · 58 km away
  20. 1.96 km W of Cobb, California · 16333 days ago · 3 km deep · 2 km away
  21. 1.610 km NW of Cobb, California · 16333 days ago · -1 km deep · 8 km away
  22. 2.54 km E of Penngrove, California · 16333 days ago · 6 km deep · 58 km away
  23. 1.75 km E of Penngrove, California · 16333 days ago · 5 km deep · 58 km away
  24. 2.45 km E of Penngrove, California · 16332 days ago · 6 km deep · 58 km away
  25. 1.72 km SE of Talmage, California · 16332 days ago · 5 km deep · 47 km away
  26. 3.516 km E of Lower Lake, California · 16332 days ago · 70 km deep · 35 km away
  27. 2.24 km NNW of Kelseyville, California · 16332 days ago · 63 km deep · 24 km away
  28. 1.58 km WSW of Cobb, California · 16332 days ago · 2 km deep · 2 km away
  29. 1.84 km WSW of Cobb, California · 16331 days ago · 1 km deep · 2 km away
  30. 3.16 km W of Cobb, California · 16331 days ago · 1 km deep · 1 km away
  31. 2.09 km WSW of Cobb, California · 16331 days ago · 1 km deep · 3 km away
  32. 1.717 km NNE of Upper Lake, California · 16331 days ago · 0 km deep · 56 km away
  33. 1.86 km W of Cobb, California · 16330 days ago · 3 km deep · 2 km away
  34. 1.66 km WSW of Cobb, California · 16330 days ago · 0 km deep · 0 km away
  35. 1.69 km W of Cobb, California · 16330 days ago · 1 km deep · 4 km away
  36. 1.86 km WSW of Cobb, California · 16329 days ago · 2 km deep · 1 km away
  37. 1.74 km W of Cobb, California · 16329 days ago · 0 km deep · 2 km away
  38. 2.02 km SSE of Kelseyville, California · 16328 days ago · 14 km deep · 18 km away
  39. 3.07 km W of Cobb, California · 16328 days ago · -1 km deep · 3 km away
  40. 2.78 km W of Cobb, California · 16328 days ago · -1 km deep · 3 km away
  41. 2.026 km W of Elk Creek, California · 16328 days ago · 3 km deep · 94 km away
  42. 2.63 km WNW of Clearlake Oaks, California · 16328 days ago · 4 km deep · 28 km away
  43. 1.67 km W of Cobb, California · 16328 days ago · 1 km deep · 3 km away
  44. 1.96 km W of Cobb, California · 16328 days ago · 4 km deep · 2 km away
  45. 2.04 km E of Geyserville, California · 16328 days ago · 5 km deep · 11 km away
  46. 1.86 km ESE of Roseland, California · 16328 days ago · 9 km deep · 46 km away
  47. 2.33 km ENE of Lower Lake, California · 16328 days ago · 4 km deep · 23 km away
  48. 2.95 km WNW of Philo, California · 16327 days ago · 18 km deep · 69 km away
  49. 3.04 km WSW of Cobb, California · 16327 days ago · 4 km deep · 2 km away
  50. 1.97 km WSW of Cobb, California · 16326 days ago · 2 km deep · 2 km away
  51. 1.69 km WSW of Cobb, California · 16326 days ago · 2 km deep · 3 km away
  52. 1.58 km WSW of Cobb, California · 16325 days ago · 1 km deep · 3 km away
  53. 1.66 km W of Cobb, California · 16325 days ago · 3 km deep · 2 km away
  54. 1.76 km W of Cobb, California · 16325 days ago · 3 km deep · 2 km away
  55. 1.59 km WSW of Cobb, California · 16325 days ago · 1 km deep · 3 km away
  56. 1.625 km SE of Covelo, California · 16325 days ago · 9 km deep · 94 km away
  57. 1.924 km SE of Covelo, California · 16324 days ago · 3 km deep · 94 km away
  58. 2.025 km SE of Covelo, California · 16324 days ago · 9 km deep · 93 km away
  59. 2.47 km WSW of Cobb, California · 16324 days ago · 3 km deep · 2 km away
  60. 1.57 km E of Willits, California · 16323 days ago · 7 km deep · 79 km away

The first 60 of 149.

Before

  1. 1.57 km N of Brooktrails, California · 16342 days ago · 8 km deep · 94 km away
  2. 1.86 km WSW of Cobb, California · 16342 days ago · 1 km deep · 1 km away
  3. 2.35 km SW of Cobb, California · 16342 days ago · 0 km deep · 2 km away
  4. 1.77 km WSW of Cobb, California · 16342 days ago · 3 km deep · 1 km away
  5. 1.96 km ESE of Talmage, California · 16343 days ago · 8 km deep · 43 km away
  6. 2.77 km W of Cobb, California · 16343 days ago · 0 km deep · 2 km away
  7. 3.2near the coast of Northern California · 16343 days ago · 8 km deep · 93 km away
  8. 3.57 km N of Brooktrails, California · 16344 days ago · 7 km deep · 93 km away
  9. 1.87 km WSW of Cobb, California · 16344 days ago · 1 km deep · 2 km away
  10. 1.68 km WSW of Cobb, California · 16344 days ago · 2 km deep · 3 km away
  11. 1.75 km SW of Cobb, California · 16344 days ago · 0 km deep · 2 km away
  12. 1.95 km W of Cobb, California · 16344 days ago · 1 km deep · 3 km away
  13. 2.06 km WSW of Cobb, California · 16344 days ago · -1 km deep · 1 km away
  14. 1.86 km WSW of Geyserville, California · 16344 days ago · 21 km deep · 21 km away
  15. 1.95 km NNE of Clearlake, California · 16345 days ago · -1 km deep · 28 km away
  16. 1.63 km NE of Willits, California · 16345 days ago · 5 km deep · 84 km away
  17. 1.83 km WSW of Moskowite Corner, California · 16345 days ago · 12 km deep · 64 km away
  18. 1.511 km N of Brooktrails, California · 16346 days ago · 6 km deep · 98 km away
  19. 1.64 km E of Penngrove, California · 16346 days ago · 0 km deep · 59 km away
  20. 1.74 km E of Penngrove, California · 16346 days ago · 2 km deep · 58 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1070867. Read Mon, Sep 28, 2026, 3:43 PM UTC.