California earthquakes

M1.8 earthquake 6 km W of Cobb, California

A magnitude 1.8 earthquake struck 6 km W of Cobb, California on Wed, Jan 30, 1985, 7:23 PM PST (03:23 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M2.1 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
1.8 (md), micro
Local time
UTC
1985-01-31 03:23:01 UTC
Depth
3.0 km (1.9 mi), shallow
Epicenter
38.821° N, 122.796° 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
69°
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: 189 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 2.17 km W of Cobb, California · 15192 days ago · 4 km deep · 1 km away
  2. 1.88 km WSW of Cobb, California · 15191 days ago · 3 km deep · 3 km away
  3. 1.63 km ENE of Redwood Valley, California · 15191 days ago · 4 km deep · 60 km away
  4. 1.96 km W of Cobb, California · 15191 days ago · 4 km deep · 0 km away
  5. 1.66 km WSW of Cobb, California · 15190 days ago · 3 km deep · 2 km away
  6. 2.36 km WSW of Cobb, California · 15190 days ago · 3 km deep · 2 km away
  7. 1.75 km SW of Cobb, California · 15190 days ago · 1 km deep · 5 km away
  8. 2.08 km WSW of Cobb, California · 15190 days ago · 3 km deep · 3 km away
  9. 2.05 km E of Hopland, California · 15189 days ago · 0 km deep · 28 km away
  10. 1.65 km SW of Cobb, California · 15189 days ago · 1 km deep · 4 km away
  11. 2.113 km N of Upper Lake, California · 15189 days ago · 12 km deep · 53 km away
  12. 1.95 km SW of Cobb, California · 15189 days ago · 0 km deep · 3 km away
  13. 2.53 km SSW of Cobb, California · 15188 days ago · 1 km deep · 5 km away
  14. 1.68 km W of Cobb, California · 15188 days ago · 0 km deep · 2 km away
  15. 1.66 km WSW of Cobb, California · 15188 days ago · 1 km deep · 1 km away
  16. 1.9Northern California · 15188 days ago · 3 km deep · 12 km away
  17. 2.25 km W of Cobb, California · 15188 days ago · 0 km deep · 0 km away
  18. 2.03 km NNE of Cloverdale, California · 15188 days ago · 3 km deep · 18 km away
  19. 1.86 km W of Cobb, California · 15187 days ago · 2 km deep · 1 km away
  20. 2.04 km SW of Clear Lake Riviera, California · 15187 days ago · 2 km deep · 12 km away
  21. 1.56 km WSW of Cobb, California · 15186 days ago · 1 km deep · 3 km away
  22. 2.17 km WSW of Cobb, California · 15186 days ago · 4 km deep · 3 km away
  23. 1.67 km WSW of Cobb, California · 15186 days ago · 1 km deep · 2 km away
  24. 1.5Northern California · 15185 days ago · 1 km deep · 4 km away
  25. 2.16 km W of Cobb, California · 15185 days ago · 3 km deep · 0 km away
  26. 2.47 km W of Cobb, California · 15185 days ago · 3 km deep · 1 km away
  27. 1.76 km ENE of Santa Rosa, California · 15184 days ago · 10 km deep · 42 km away
  28. 2.03 km W of Forestville, California · 15184 days ago · 0 km deep · 41 km away
  29. 2.78 km W of Cobb, California · 15183 days ago · 0 km deep · 2 km away
  30. 1.87 km W of Cobb, California · 15183 days ago · -1 km deep · 1 km away
  31. 3.110 km NW of Cobb, California · 15183 days ago · 8 km deep · 7 km away
  32. 2.34 km WSW of Cobb, California · 15183 days ago · 1 km deep · 3 km away
  33. 2.24 km NNE of Clearlake, California · 15183 days ago · 1 km deep · 26 km away
  34. 2.04 km NNE of Clearlake, California · 15182 days ago · 1 km deep · 25 km away
  35. 1.79 km ESE of Black Point-Green Point, California · 15182 days ago · 14 km deep · 88 km away
  36. 1.66 km W of Cobb, California · 15182 days ago · 3 km deep · 0 km away
  37. 1.86 km NW of North Lakeport, California · 15182 days ago · 1 km deep · 37 km away
  38. 1.86 km W of Cobb, California · 15182 days ago · 3 km deep · 0 km away
  39. 1.87 km WSW of Cobb, California · 15182 days ago · 1 km deep · 2 km away
  40. 2.45 km SW of Cobb, California · 15181 days ago · 2 km deep · 4 km away
  41. 1.76 km NW of North Lakeport, California · 15180 days ago · 5 km deep · 37 km away
  42. 2.38 km W of Cobb, California · 15180 days ago · 0 km deep · 2 km away
  43. 1.98 km W of Cobb, California · 15180 days ago · 0 km deep · 3 km away
  44. 2.52 km SSE of Clear Lake Riviera, California · 15180 days ago · 1 km deep · 14 km away
  45. 1.90 km NNE of Clearlake, California · 15180 days ago · 4 km deep · 22 km away
  46. 1.5Northern California · 15180 days ago · -1 km deep · 13 km away
  47. 2.15 km SW of Cobb, California · 15180 days ago · 1 km deep · 5 km away
  48. 1.67 km W of Cobb, California · 15179 days ago · 3 km deep · 1 km away
  49. 1.64 km WSW of Cobb, California · 15179 days ago · 1 km deep · 3 km away
  50. 1.53 km ESE of Kenwood, California · 15179 days ago · 8 km deep · 53 km away
  51. 1.77 km W of Cobb, California · 15179 days ago · 3 km deep · 1 km away
  52. 2.02 km SE of Clear Lake Riviera, California · 15178 days ago · 2 km deep · 15 km away
  53. 2.77 km WSW of Cobb, California · 15178 days ago · 2 km deep · 2 km away
  54. 1.87 km WSW of Cobb, California · 15178 days ago · 2 km deep · 2 km away
  55. 3.1Northern California · 15177 days ago · 3 km deep · 0 km away
  56. 2.46 km NNE of Cloverdale, California · 15177 days ago · 18 km deep · 16 km away
  57. 1.56 km W of Cobb, California · 15176 days ago · 3 km deep · 1 km away
  58. 1.67 km W of Cobb, California · 15176 days ago · 4 km deep · 1 km away
  59. 1.7Northern California · 15176 days ago · 5 km deep · 13 km away
  60. 2.82 km SE of Clear Lake Riviera, California · 15175 days ago · 2 km deep · 15 km away

The first 60 of 189.

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc39378. Read Tue, Sep 22, 2026, 11:35 AM UTC.