California earthquakes

M1.5 earthquake 4 km WSW of Cobb, California

A magnitude 1.5 earthquake struck 4 km WSW of Cobb, California on Mon, Nov 26, 1984, 12:05 PM PST (20:05 UTC), 1 km (1 mi) below the surface.

A larger quake followed: M3.5 6 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.

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The earthquake

Magnitude
1.5 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1984-11-26 20:05:01 UTC
Depth
1.2 km (0.8 mi), shallow
Epicenter
38.801° N, 122.770° 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, 0.3 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
48°
Stations used
17

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 193 in the 60 days after this one and 90 in the 30 days before it.

After

  1. 1.63 km SW of Forestville, California · 15284 days ago · 2 km deep · 41 km away
  2. 1.69 km W of Cobb, California · 15284 days ago · 0 km deep · 5 km away
  3. 1.77 km WSW of Cobb, California · 15284 days ago · 1 km deep · 3 km away
  4. 1.86 km WSW of Cobb, California · 15284 days ago · 0 km deep · 2 km away
  5. 1.57 km WSW of Cobb, California · 15283 days ago · 0 km deep · 3 km away
  6. 1.85 km N of Cobb, California · 15283 days ago · -1 km deep · 9 km away
  7. 3.36 km WSW of Cobb, California · 15283 days ago · 3 km deep · 2 km away
  8. 1.76 km WSW of Cobb, California · 15282 days ago · 0 km deep · 2 km away
  9. 1.69 km W of Cobb, California · 15282 days ago · 1 km deep · 5 km away
  10. 1.67 km NNE of Geyserville, California · 15282 days ago · 0 km deep · 11 km away
  11. 1.96 km WSW of Cobb, California · 15281 days ago · 3 km deep · 2 km away
  12. 1.722 km W of Elk Creek, California · 15280 days ago · 7 km deep · 93 km away
  13. 1.77 km NE of Willits, California · 15280 days ago · 7 km deep · 85 km away
  14. 1.95 km SW of Cobb, California · 15280 days ago · -1 km deep · 2 km away
  15. 1.74 km W of Cobb, California · 15280 days ago · -1 km deep · 2 km away
  16. 1.812 km ENE of Rutherford, California · 15280 days ago · 7 km deep · 51 km away
  17. 2.26 km W of Cobb, California · 15280 days ago · 2 km deep · 3 km away
  18. 1.95 km SW of Cobb, California · 15279 days ago · 1 km deep · 1 km away
  19. 1.52 km W of Cobb, California · 15279 days ago · -1 km deep · 3 km away
  20. 1.66 km W of Cobb, California · 15278 days ago · 3 km deep · 3 km away
  21. 1.75 km WSW of Glen Ellen, California · 15277 days ago · 11 km deep · 53 km away
  22. 1.75 km SW of Cobb, California · 15277 days ago · 0 km deep · 1 km away
  23. 1.816 km NNE of Upper Lake, California · 15277 days ago · 10 km deep · 55 km away
  24. 1.65 km NNE of Windsor, California · 15277 days ago · 4 km deep · 23 km away
  25. 1.86 km WSW of Cobb, California · 15276 days ago · 0 km deep · 2 km away
  26. 1.73 km SW of Cobb, California · 15276 days ago · 1 km deep · 2 km away
  27. 1.67 km WSW of Cobb, California · 15276 days ago · 4 km deep · 3 km away
  28. 1.67 km WSW of Cobb, California · 15276 days ago · 0 km deep · 3 km away
  29. 2.75 km SW of Cobb, California · 15276 days ago · 0 km deep · 2 km away
  30. 2.05 km SW of Cobb, California · 15276 days ago · -1 km deep · 1 km away
  31. 1.76 km SW of Cobb, California · 15274 days ago · 1 km deep · 2 km away
  32. 1.620 km ENE of Potter Valley, California · 15274 days ago · 5 km deep · 66 km away
  33. 2.95 km WSW of Cobb, California · 15273 days ago · 1 km deep · 1 km away
  34. 2.95 km WSW of Cobb, California · 15273 days ago · 0 km deep · 1 km away
  35. 1.85 km WSW of Cobb, California · 15273 days ago · 0 km deep · 1 km away
  36. 2.34 km SW of Rutherford, California · 15273 days ago · 7 km deep · 50 km away
  37. 1.97 km WSW of Cobb, California · 15273 days ago · 2 km deep · 3 km away
  38. 1.57 km WSW of Cobb, California · 15273 days ago · 3 km deep · 3 km away
  39. 1.86 km WSW of Cobb, California · 15273 days ago · 4 km deep · 2 km away
  40. 1.95 km SW of Cobb, California · 15273 days ago · 1 km deep · 1 km away
  41. 1.87 km W of Cobb, California · 15272 days ago · 3 km deep · 3 km away
  42. 1.66 km WSW of Cobb, California · 15272 days ago · 3 km deep · 2 km away
  43. 1.57 km WSW of Cobb, California · 15272 days ago · 1 km deep · 3 km away
  44. 1.93 km SW of Green Valley, California · 15271 days ago · 6 km deep · 80 km away
  45. 2.35 km WSW of Cobb, California · 15271 days ago · 1 km deep · 1 km away
  46. 2.38 km W of Cobb, California · 15271 days ago · 1 km deep · 5 km away
  47. 2.18 km W of Cobb, California · 15271 days ago · 0 km deep · 5 km away
  48. 1.58 km W of Cobb, California · 15271 days ago · -1 km deep · 5 km away
  49. 2.38 km W of Cobb, California · 15270 days ago · 0 km deep · 5 km away
  50. 1.65 km WSW of Cobb, California · 15270 days ago · 1 km deep · 1 km away
  51. 1.88 km W of Cobb, California · 15270 days ago · 0 km deep · 5 km away
  52. 1.68 km ENE of Clearlake, California · 15269 days ago · 1 km deep · 29 km away
  53. 2.112 km S of Comptche, California · 15269 days ago · -1 km deep · 81 km away
  54. 2.312 km S of Comptche, California · 15269 days ago · -1 km deep · 81 km away
  55. 1.65 km SW of Cobb, California · 15269 days ago · 1 km deep · 1 km away
  56. 2.07 km W of Cobb, California · 15268 days ago · 1 km deep · 4 km away
  57. 1.57 km W of Cobb, California · 15268 days ago · 0 km deep · 4 km away
  58. 1.75 km NNE of Windsor, California · 15267 days ago · 2 km deep · 23 km away
  59. 1.74 km WSW of Cobb, California · 15267 days ago · 1 km deep · 0 km away
  60. 2.16 km W of Cobb, California · 15266 days ago · 3 km deep · 4 km away

The first 60 of 193.

Before

  1. 1.6Northern California · 15285 days ago · 1 km deep · 1 km away
  2. 1.62 km ENE of Willits, California · 15285 days ago · 4 km deep · 84 km away
  3. 2.46 km W of Cobb, California · 15286 days ago · 3 km deep · 4 km away
  4. 1.86 km WSW of Cobb, California · 15286 days ago · 3 km deep · 2 km away
  5. 2.06 km WSW of Cobb, California · 15286 days ago · 0 km deep · 2 km away
  6. 2.06 km WSW of Cobb, California · 15286 days ago · 0 km deep · 2 km away
  7. 2.49 km ENE of Hidden Valley Lake, California · 15286 days ago · 7 km deep · 28 km away
  8. 1.65 km WSW of Cobb, California · 15287 days ago · 1 km deep · 1 km away
  9. 1.63 km SW of Cobb, California · 15287 days ago · -1 km deep · 2 km away
  10. 2.05 km SW of Cobb, California · 15287 days ago · 1 km deep · 1 km away
  11. 1.87 km WSW of Cobb, California · 15287 days ago · 3 km deep · 3 km away
  12. 3.13 km SE of Point Arena, California · 15288 days ago · 8 km deep · 78 km away
  13. 2.5Northern California · 15288 days ago · 0 km deep · 4 km away
  14. 1.8Northern California · 15288 days ago · 1 km deep · 0 km away
  15. 1.75 km WSW of Cobb, California · 15288 days ago · 2 km deep · 1 km away
  16. 2.15 km NNW of Cobb, California · 15289 days ago · 10 km deep · 8 km away
  17. 1.66 km SW of Cobb, California · 15289 days ago · 1 km deep · 3 km away
  18. 1.57 km WSW of Cobb, California · 15289 days ago · 0 km deep · 3 km away
  19. 1.88 km W of Cobb, California · 15289 days ago · 0 km deep · 5 km away
  20. 1.88 km W of Cobb, California · 15289 days ago · 1 km deep · 5 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc40334. Read Fri, Oct 2, 2026, 11:06 AM UTC.