California earthquakes

M1.8 earthquake 7 km W of Cobb, California

A magnitude 1.8 earthquake struck 7 km W of Cobb, California on Mon, Aug 19, 1985, 1:45 PM PDT (20:45 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M1.9 22 km WSW of Williams, 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
1.8 (md), micro
Local time
UTC
1985-08-19 20:45:22 UTC
Depth
3.0 km (1.9 mi), shallow
Epicenter
38.821° N, 122.806° 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
±0.13
Depth from
From location
Station coverage gap
49°
Stations used
21

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 180 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 1.89 km ESE of Willits, California · 14995 days ago · 8 km deep · 74 km away
  2. 1.922 km WSW of Williams, California · 14995 days ago · 2 km deep · 47 km away
  3. 2.33 km SW of Cobb, California · 14995 days ago · 1 km deep · 6 km away
  4. 1.78 km WSW of Cobb, California · 14995 days ago · 3 km deep · 2 km away
  5. 1.95 km SW of Cobb, California · 14995 days ago · 0 km deep · 6 km away
  6. 1.614 km ENE of Clearlake Oaks, California · 14995 days ago · 10 km deep · 37 km away
  7. 1.56 km W of Cobb, California · 14995 days ago · 3 km deep · 1 km away
  8. 2.55 km SSW of Cobb, California · 14994 days ago · 1 km deep · 6 km away
  9. 1.68 km WSW of Cobb, California · 14994 days ago · 4 km deep · 3 km away
  10. 3.214 km NW of Moskowite Corner, California · 14994 days ago · 4 km deep · 55 km away
  11. 1.913 km NNW of Moskowite Corner, California · 14993 days ago · 1 km deep · 56 km away
  12. 1.913 km NW of Moskowite Corner, California · 14993 days ago · 0 km deep · 55 km away
  13. 1.65 km SW of Cobb, California · 14992 days ago · 0 km deep · 5 km away
  14. 1.56 km W of Cobb, California · 14992 days ago · 3 km deep · 1 km away
  15. 2.913 km NW of Moskowite Corner, California · 14992 days ago · 4 km deep · 55 km away
  16. 2.713 km NW of Moskowite Corner, California · 14992 days ago · 3 km deep · 55 km away
  17. 1.710 km SSE of Moskowite Corner, California · 14992 days ago · 5 km deep · 78 km away
  18. 2.13 km NNW of Larkfield-Wikiup, California · 14992 days ago · 4 km deep · 31 km away
  19. 1.78 km W of Cobb, California · 14992 days ago · 0 km deep · 1 km away
  20. 2.313 km NNW of Moskowite Corner, California · 14992 days ago · 0 km deep · 56 km away
  21. 2.413 km NW of Moskowite Corner, California · 14992 days ago · 0 km deep · 55 km away
  22. 2.114 km NNW of Moskowite Corner, California · 14992 days ago · 2 km deep · 55 km away
  23. 1.56 km W of Cobb, California · 14991 days ago · 1 km deep · 1 km away
  24. 1.98 km WSW of Cobb, California · 14991 days ago · 0 km deep · 3 km away
  25. 1.56 km W of Cobb, California · 14991 days ago · 3 km deep · 0 km away
  26. 2.36 km SW of Cobb, California · 14991 days ago · 0 km deep · 5 km away
  27. 1.66 km SW of Cobb, California · 14991 days ago · 0 km deep · 5 km away
  28. 2.713 km NNW of Moskowite Corner, California · 14991 days ago · 2 km deep · 55 km away
  29. 1.96 km WSW of Cobb, California · 14991 days ago · 3 km deep · 2 km away
  30. 1.68 km NW of Moskowite Corner, California · 14991 days ago · 2 km deep · 59 km away
  31. 1.77 km WNW of Cobb, California · 14991 days ago · -1 km deep · 2 km away
  32. 1.64 km N of Cobb, California · 14991 days ago · 2 km deep · 8 km away
  33. 2.54 km WSW of Cobb, California · 14991 days ago · 2 km deep · 4 km away
  34. 1.69 km W of Cobb, California · 14991 days ago · 2 km deep · 2 km away
  35. 2.36 km W of Cobb, California · 14991 days ago · 3 km deep · 1 km away
  36. 2.58 km W of Cobb, California · 14990 days ago · 0 km deep · 1 km away
  37. 1.87 km W of Cobb, California · 14990 days ago · 0 km deep · 1 km away
  38. 2.16 km W of Cobb, California · 14990 days ago · 2 km deep · 1 km away
  39. 1.65 km WSW of Cobb, California · 14990 days ago · 1 km deep · 3 km away
  40. 2.74 km WSW of Cobb, California · 14990 days ago · 2 km deep · 3 km away
  41. 1.85 km SW of Cobb, California · 14990 days ago · 0 km deep · 5 km away
  42. 3.49 km NNW of Princeton, California · 14990 days ago · 19 km deep · 98 km away
  43. 2.012 km NNW of Moskowite Corner, California · 14990 days ago · 0 km deep · 57 km away
  44. 1.74 km SSW of Cobb, California · 14990 days ago · 2 km deep · 7 km away
  45. 1.98 km W of Cobb, California · 14988 days ago · 1 km deep · 1 km away
  46. 1.59 km ESE of Hidden Valley Lake, California · 14988 days ago · 4 km deep · 30 km away
  47. 1.89 km W of Cobb, California · 14988 days ago · 1 km deep · 2 km away
  48. 1.78 km W of Cobb, California · 14988 days ago · 0 km deep · 2 km away
  49. 1.99 km NW of Cobb, California · 14988 days ago · 1 km deep · 6 km away
  50. 1.63 km SW of Cobb, California · 14987 days ago · 0 km deep · 6 km away
  51. 2.010 km NW of Cobb, California · 14987 days ago · 0 km deep · 6 km away
  52. 2.06 km W of Cobb, California · 14987 days ago · 1 km deep · 1 km away
  53. 1.920 km NE of Upper Lake, California · 14987 days ago · -1 km deep · 55 km away
  54. 1.58 km WSW of Cobb, California · 14986 days ago · 0 km deep · 3 km away
  55. 1.96 km W of Cobb, California · 14986 days ago · 4 km deep · 1 km away
  56. 1.98 km W of Cobb, California · 14985 days ago · 1 km deep · 1 km away
  57. 1.812 km NE of Upper Lake, California · 14985 days ago · 2 km deep · 46 km away
  58. 2.13 km W of Glen Ellen, California · 14985 days ago · 8 km deep · 55 km away
  59. 1.93 km WSW of Glen Ellen, California · 14985 days ago · 8 km deep · 56 km away
  60. 2.16 km NE of Windsor, California · 14985 days ago · 5 km deep · 26 km away

The first 60 of 180.

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc53261. Read Tue, Sep 22, 2026, 7:45 PM UTC.