California earthquakes

M1.7 earthquake 7 km WSW of Cobb, California

A magnitude 1.7 earthquake struck 7 km WSW of Cobb, California on Sat, Jan 19, 1985, 11:39 PM PST (07:39 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M4.1 11 km NNE of Cloverdale, 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
1.7 (md), micro
Local time
UTC
1985-01-20 07:39:12 UTC
Depth
2.7 km (1.7 mi), shallow
Epicenter
38.808° 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, 0.4 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
59°
Stations used
20

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 194 in the 60 days after this one and 118 in the 30 days before it.

After

  1. 1.614 km SSW of Hopland, California · 15227 days ago · 12 km deep · 36 km away
  2. 1.74 km WSW of Cobb, California · 15227 days ago · 1 km deep · 3 km away
  3. 1.62 km SE of Hopland, California · 15227 days ago · 10 km deep · 30 km away
  4. 1.65 km SSW of Hopland, California · 15226 days ago · 2 km deep · 31 km away
  5. 1.912 km W of Cobb, California · 15226 days ago · -1 km deep · 6 km away
  6. 1.76 km W of Cobb, California · 15226 days ago · 0 km deep · 2 km away
  7. 3.56 km W of Cobb, California · 15226 days ago · 1 km deep · 1 km away
  8. 2.66 km W of Cobb, California · 15226 days ago · 1 km deep · 1 km away
  9. 1.76 km W of Cobb, California · 15226 days ago · 0 km deep · 1 km away
  10. 1.96 km W of Cobb, California · 15226 days ago · 2 km deep · 1 km away
  11. 1.58 km WSW of Cobb, California · 15225 days ago · 4 km deep · 2 km away
  12. 1.87 km W of Cobb, California · 15225 days ago · 3 km deep · 1 km away
  13. 1.85 km SW of Cobb, California · 15225 days ago · 1 km deep · 5 km away
  14. 3.16 km WSW of Cobb, California · 15225 days ago · 0 km deep · 1 km away
  15. 1.57 km WSW of Cobb, California · 15225 days ago · 1 km deep · 1 km away
  16. 1.98 km ENE of Hopland, California · 15225 days ago · 22 km deep · 30 km away
  17. 2.37 km WSW of Cobb, California · 15225 days ago · 0 km deep · 0 km away
  18. 2.57 km WSW of Cobb, California · 15225 days ago · 0 km deep · 1 km away
  19. 1.67 km WSW of Cobb, California · 15225 days ago · 1 km deep · 1 km away
  20. 2.07 km WSW of Cobb, California · 15225 days ago · 1 km deep · 1 km away
  21. 1.76 km W of Cobb, California · 15225 days ago · 3 km deep · 1 km away
  22. 1.67 km W of Cobb, California · 15225 days ago · 3 km deep · 1 km away
  23. 1.66 km W of Cobb, California · 15225 days ago · 3 km deep · 1 km away
  24. 2.77 km W of Cobb, California · 15225 days ago · 1 km deep · 2 km away
  25. 1.86 km W of Cobb, California · 15225 days ago · 3 km deep · 1 km away
  26. 1.920 km NNE of Potter Valley, California · 15224 days ago · 7 km deep · 78 km away
  27. 2.07 km WSW of Cobb, California · 15224 days ago · 1 km deep · 1 km away
  28. 1.511 km NNE of Angwin, California · 15223 days ago · 1 km deep · 37 km away
  29. 1.56 km W of Cobb, California · 15223 days ago · 3 km deep · 2 km away
  30. 2.86 km W of Cobb, California · 15223 days ago · 3 km deep · 2 km away
  31. 1.97 km WSW of Cobb, California · 15223 days ago · 2 km deep · 1 km away
  32. 1.97 km NNE of Geyserville, California · 15222 days ago · 2 km deep · 8 km away
  33. 1.86 km W of Cobb, California · 15222 days ago · 0 km deep · 2 km away
  34. 1.67 km W of Cobb, California · 15222 days ago · 1 km deep · 2 km away
  35. 2.07 km W of Cobb, California · 15221 days ago · 3 km deep · 2 km away
  36. 1.76 km W of Cobb, California · 15221 days ago · 1 km deep · 3 km away
  37. 1.67 km W of Cobb, California · 15221 days ago · 4 km deep · 1 km away
  38. 3.25 km NNW of Geyserville, California · 15221 days ago · 4 km deep · 13 km away
  39. 2.86 km WNW of Cobb, California · 15221 days ago · 0 km deep · 3 km away
  40. 1.53 km ENE of Willits, California · 15221 days ago · 7 km deep · 82 km away
  41. 1.87 km W of Cobb, California · 15221 days ago · 4 km deep · 1 km away
  42. 1.66 km W of Cobb, California · 15220 days ago · 3 km deep · 1 km away
  43. 1.59 km W of Cobb, California · 15220 days ago · 2 km deep · 2 km away
  44. 1.84 km WSW of Cobb, California · 15219 days ago · 1 km deep · 3 km away
  45. 2.67 km WSW of Cobb, California · 15219 days ago · 4 km deep · 1 km away
  46. 1.75 km W of Calpella, California · 15219 days ago · 2 km deep · 61 km away
  47. 1.77 km WSW of Cobb, California · 15219 days ago · 2 km deep · 1 km away
  48. 1.67 km NNE of Geyserville, California · 15218 days ago · 2 km deep · 8 km away
  49. 1.64 km E of Hopland, California · 15218 days ago · 26 km deep · 30 km away
  50. 1.63 km E of Hopland, California · 15218 days ago · 23 km deep · 30 km away
  51. 2.46 km SW of Cobb, California · 15218 days ago · 2 km deep · 4 km away
  52. 1.76 km W of Cobb, California · 15218 days ago · 3 km deep · 1 km away
  53. 3.17 km W of Cobb, California · 15218 days ago · 4 km deep · 1 km away
  54. 2.47 km W of Cobb, California · 15218 days ago · 4 km deep · 2 km away
  55. 1.818 km ENE of Potter Valley, California · 15217 days ago · 9 km deep · 67 km away
  56. 2.55 km SW of Cobb, California · 15217 days ago · 1 km deep · 3 km away
  57. 1.86 km W of Cobb, California · 15217 days ago · 3 km deep · 2 km away
  58. 1.56 km SSW of Hopland, California · 15217 days ago · 0 km deep · 33 km away
  59. 2.13 km SW of Cobb, California · 15217 days ago · 1 km deep · 5 km away
  60. 1.67 km W of Cobb, California · 15215 days ago · 4 km deep · 1 km away

The first 60 of 194.

Before

  1. 1.714 km NNE of Angwin, California · 15228 days ago · 13 km deep · 40 km away
  2. 2.26 km W of Cobb, California · 15228 days ago · 2 km deep · 1 km away
  3. 1.81 km S of Hopland, California · 15229 days ago · 21 km deep · 32 km away
  4. 1.97 km W of Cobb, California · 15230 days ago · 3 km deep · 1 km away
  5. 1.9Northern California · 15230 days ago · 1 km deep · 2 km away
  6. 1.75 km WSW of Cobb, California · 15231 days ago · 0 km deep · 1 km away
  7. 1.67 km WSW of Cobb, California · 15231 days ago · 1 km deep · 1 km away
  8. 1.64 km ENE of Willits, California · 15232 days ago · 2 km deep · 81 km away
  9. 1.56 km W of Cobb, California · 15232 days ago · 1 km deep · 2 km away
  10. 2.63 km NW of Cobb, California · 15233 days ago · 0 km deep · 6 km away
  11. 1.72 km W of Sea Ranch, California · 15233 days ago · 4 km deep · 60 km away
  12. 1.66 km WSW of Cobb, California · 15233 days ago · 0 km deep · 1 km away
  13. 2.36 km WSW of Cobb, California · 15233 days ago · 1 km deep · 1 km away
  14. 1.76 km WSW of Cobb, California · 15233 days ago · 1 km deep · 1 km away
  15. 1.77 km W of Cobb, California · 15233 days ago · 3 km deep · 1 km away
  16. 1.96 km W of Cobb, California · 15233 days ago · -1 km deep · 3 km away
  17. 1.96 km WSW of Cobb, California · 15233 days ago · 3 km deep · 1 km away
  18. 1.56 km W of Cobb, California · 15233 days ago · 1 km deep · 1 km away
  19. 1.85 km SW of Cobb, California · 15233 days ago · 0 km deep · 4 km away
  20. 3.06 km W of Cobb, California · 15234 days ago · 2 km deep · 1 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc38127. Read Wed, Sep 30, 2026, 1:54 AM UTC.