California earthquakes

M1.8 earthquake 8 km W of Cobb, California

A magnitude 1.8 earthquake struck 8 km W of Cobb, California on Thu, Nov 22, 1984, 12:03 AM PST (08:03 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M3.4 5 km SW 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, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1984-11-22 08:03:51 UTC
Depth
0.1 km (0.1 mi), shallow
Epicenter
38.823° N, 122.817° 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 0.3 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
100°
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 192 in the 60 days after this one and 81 in the 30 days before it.

After

  1. 1.57 km WSW of Cobb, California · 15289 days ago · 0 km deep · 2 km away
  2. 1.66 km SW of Cobb, California · 15289 days ago · 1 km deep · 7 km away
  3. 2.15 km NNW of Cobb, California · 15289 days ago · 10 km deep · 7 km away
  4. 1.75 km WSW of Cobb, California · 15288 days ago · 2 km deep · 4 km away
  5. 1.8Northern California · 15288 days ago · 1 km deep · 4 km away
  6. 2.5Northern California · 15288 days ago · 0 km deep · 2 km away
  7. 3.13 km SE of Point Arena, California · 15288 days ago · 8 km deep · 74 km away
  8. 1.87 km WSW of Cobb, California · 15288 days ago · 3 km deep · 3 km away
  9. 2.05 km SW of Cobb, California · 15288 days ago · 1 km deep · 5 km away
  10. 1.63 km SW of Cobb, California · 15288 days ago · -1 km deep · 7 km away
  11. 1.65 km WSW of Cobb, California · 15287 days ago · 1 km deep · 4 km away
  12. 2.49 km ENE of Hidden Valley Lake, California · 15287 days ago · 7 km deep · 31 km away
  13. 2.06 km WSW of Cobb, California · 15287 days ago · 0 km deep · 3 km away
  14. 2.06 km WSW of Cobb, California · 15287 days ago · 0 km deep · 3 km away
  15. 1.86 km WSW of Cobb, California · 15286 days ago · 3 km deep · 3 km away
  16. 2.46 km W of Cobb, California · 15286 days ago · 3 km deep · 1 km away
  17. 1.62 km ENE of Willits, California · 15286 days ago · 4 km deep · 80 km away
  18. 1.6Northern California · 15285 days ago · 1 km deep · 5 km away
  19. 1.54 km WSW of Cobb, California · 15285 days ago · 1 km deep · 5 km away
  20. 1.63 km SW of Forestville, California · 15285 days ago · 2 km deep · 42 km away
  21. 1.69 km W of Cobb, California · 15285 days ago · 0 km deep · 2 km away
  22. 1.77 km WSW of Cobb, California · 15284 days ago · 1 km deep · 3 km away
  23. 1.86 km WSW of Cobb, California · 15284 days ago · 0 km deep · 3 km away
  24. 1.57 km WSW of Cobb, California · 15284 days ago · 0 km deep · 2 km away
  25. 1.85 km N of Cobb, California · 15284 days ago · -1 km deep · 9 km away
  26. 3.36 km WSW of Cobb, California · 15283 days ago · 3 km deep · 3 km away
  27. 1.76 km WSW of Cobb, California · 15283 days ago · 0 km deep · 3 km away
  28. 1.69 km W of Cobb, California · 15283 days ago · 1 km deep · 1 km away
  29. 1.67 km NNE of Geyserville, California · 15282 days ago · 0 km deep · 8 km away
  30. 1.96 km WSW of Cobb, California · 15282 days ago · 3 km deep · 2 km away
  31. 1.722 km W of Elk Creek, California · 15281 days ago · 7 km deep · 91 km away
  32. 1.77 km NE of Willits, California · 15281 days ago · 7 km deep · 81 km away
  33. 1.95 km SW of Cobb, California · 15280 days ago · -1 km deep · 6 km away
  34. 1.74 km W of Cobb, California · 15280 days ago · -1 km deep · 3 km away
  35. 1.812 km ENE of Rutherford, California · 15280 days ago · 7 km deep · 56 km away
  36. 2.26 km W of Cobb, California · 15280 days ago · 2 km deep · 2 km away
  37. 1.95 km SW of Cobb, California · 15280 days ago · 1 km deep · 5 km away
  38. 1.52 km W of Cobb, California · 15279 days ago · -1 km deep · 6 km away
  39. 1.66 km W of Cobb, California · 15279 days ago · 3 km deep · 2 km away
  40. 1.75 km WSW of Glen Ellen, California · 15278 days ago · 11 km deep · 57 km away
  41. 1.75 km SW of Cobb, California · 15277 days ago · 0 km deep · 5 km away
  42. 1.816 km NNE of Upper Lake, California · 15277 days ago · 10 km deep · 52 km away
  43. 1.65 km NNE of Windsor, California · 15277 days ago · 4 km deep · 25 km away
  44. 1.86 km WSW of Cobb, California · 15277 days ago · 0 km deep · 3 km away
  45. 1.73 km SW of Cobb, California · 15277 days ago · 1 km deep · 7 km away
  46. 1.67 km WSW of Cobb, California · 15277 days ago · 4 km deep · 4 km away
  47. 1.67 km WSW of Cobb, California · 15276 days ago · 0 km deep · 2 km away
  48. 2.75 km SW of Cobb, California · 15276 days ago · 0 km deep · 6 km away
  49. 2.05 km SW of Cobb, California · 15276 days ago · -1 km deep · 5 km away
  50. 1.76 km SW of Cobb, California · 15275 days ago · 1 km deep · 6 km away
  51. 1.620 km ENE of Potter Valley, California · 15275 days ago · 5 km deep · 63 km away
  52. 2.95 km WSW of Cobb, California · 15274 days ago · 1 km deep · 3 km away
  53. 2.95 km WSW of Cobb, California · 15274 days ago · 0 km deep · 3 km away
  54. 1.85 km WSW of Cobb, California · 15274 days ago · 0 km deep · 4 km away
  55. 2.34 km SW of Rutherford, California · 15274 days ago · 7 km deep · 54 km away
  56. 1.97 km WSW of Cobb, California · 15274 days ago · 2 km deep · 3 km away
  57. 1.57 km WSW of Cobb, California · 15273 days ago · 3 km deep · 3 km away
  58. 1.86 km WSW of Cobb, California · 15273 days ago · 4 km deep · 3 km away
  59. 1.95 km SW of Cobb, California · 15273 days ago · 1 km deep · 5 km away
  60. 1.87 km W of Cobb, California · 15273 days ago · 3 km deep · 1 km away

The first 60 of 192.

Before

  1. 1.88 km W of Cobb, California · 15290 days ago · 1 km deep · 0 km away
  2. 1.510 km NE of Cloverdale, California · 15290 days ago · 1 km deep · 10 km away
  3. 1.75 km SW of Cobb, California · 15290 days ago · 0 km deep · 6 km away
  4. 2.15 km SW of Cobb, California · 15290 days ago · 0 km deep · 6 km away
  5. 1.97 km W of Cobb, California · 15290 days ago · 1 km deep · 1 km away
  6. 1.85 km SW of Cobb, California · 15290 days ago · 1 km deep · 7 km away
  7. 1.66 km W of Cobb, California · 15290 days ago · 3 km deep · 2 km away
  8. 2.06 km WSW of Cobb, California · 15290 days ago · 0 km deep · 3 km away
  9. 2.16 km W of Cobb, California · 15291 days ago · 3 km deep · 2 km away
  10. 1.77 km W of Cobb, California · 15291 days ago · -1 km deep · 2 km away
  11. 2.45 km SW of Cobb, California · 15293 days ago · 1 km deep · 6 km away
  12. 1.94 km WSW of Cobb, California · 15293 days ago · 1 km deep · 5 km away
  13. 1.58 km ENE of Santa Rosa, California · 15294 days ago · 12 km deep · 43 km away
  14. 1.76 km W of Cobb, California · 15294 days ago · 3 km deep · 2 km away
  15. 1.85 km W of Lower Lake, California · 15295 days ago · 4 km deep · 16 km away
  16. 1.63 km SW of Cobb, California · 15295 days ago · 1 km deep · 7 km away
  17. 2.1Northern California · 15295 days ago · 10 km deep · 49 km away
  18. 1.75 km SW of Cobb, California · 15295 days ago · 1 km deep · 5 km away
  19. 1.618 km NE of Nice, California · 15296 days ago · 7 km deep · 48 km away
  20. 1.919 km NNE of Upper Lake, California · 15296 days ago · 0 km deep · 55 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc32318. Read Fri, Oct 2, 2026, 10:13 PM UTC.