California earthquakes

M1.7 earthquake 6 km SW of Cobb, California

A magnitude 1.7 earthquake struck 6 km SW of Cobb, California on Thu, Mar 22, 1990, 10:22 PM PST (06:22 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M3.6 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
1.7 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1990-03-23 06:22:07 UTC
Depth
0.3 km (0.2 mi), shallow
Epicenter
38.784° N, 122.774° 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, 0.5 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
75°
Stations used
12

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 174 in the 60 days after this one and 113 in the 30 days before it.

After

  1. 1.58 km ENE of Healdsburg, California · 13344 days ago · 6 km deep · 16 km away
  2. 2.27 km W of Cobb, California · 13344 days ago · 1 km deep · 5 km away
  3. 1.93 km WSW of Forestville, California · 13344 days ago · 0 km deep · 38 km away
  4. 2.717 km NE of Nice, California · 13343 days ago · 10 km deep · 51 km away
  5. 2.117 km NE of Nice, California · 13343 days ago · 9 km deep · 51 km away
  6. 1.614 km E of Angwin, California · 13343 days ago · -1 km deep · 48 km away
  7. 3.27 km WSW of Cobb, California · 13342 days ago · 0 km deep · 3 km away
  8. 1.56 km E of Calpella, California · 13342 days ago · 2 km deep · 58 km away
  9. 1.65 km SW of Cobb, California · 13341 days ago · 2 km deep · 1 km away
  10. 2.08 km WNW of Cobb, California · 13341 days ago · 0 km deep · 7 km away
  11. 2.25 km SW of Cobb, California · 13341 days ago · 2 km deep · 1 km away
  12. 1.57 km WSW of Cobb, California · 13340 days ago · 3 km deep · 4 km away
  13. 1.85 km W of Cobb, California · 13340 days ago · 1 km deep · 5 km away
  14. 2.55 km WSW of Cobb, California · 13340 days ago · 0 km deep · 2 km away
  15. 2.018 km ENE of Sea Ranch, California · 13339 days ago · 4 km deep · 43 km away
  16. 1.69 km NNE of Nice, California · 13339 days ago · 9 km deep · 47 km away
  17. 3.06 km W of Cobb, California · 13339 days ago · 2 km deep · 5 km away
  18. 2.0Northern California · 13339 days ago · 3 km deep · 5 km away
  19. 1.619 km ENE of Potter Valley, California · 13338 days ago · 5 km deep · 66 km away
  20. 2.06 km W of Cobb, California · 13338 days ago · 4 km deep · 5 km away
  21. 1.77 km W of Cobb, California · 13338 days ago · 4 km deep · 5 km away
  22. 3.018 km ENE of Angwin, California · 13337 days ago · 0 km deep · 47 km away
  23. 2.04 km WSW of Cobb, California · 13337 days ago · 1 km deep · 3 km away
  24. 2.08 km W of Cobb, California · 13336 days ago · -1 km deep · 6 km away
  25. 1.67 km WSW of Cobb, California · 13336 days ago · 1 km deep · 3 km away
  26. 2.23 km SSW of Cobb, California · 13336 days ago · 1 km deep · 3 km away
  27. 2.06 km W of Cobb, California · 13335 days ago · 0 km deep · 6 km away
  28. 2.618 km ENE of Potter Valley, California · 13334 days ago · 7 km deep · 65 km away
  29. 1.86 km WSW of Cobb, California · 13333 days ago · 1 km deep · 3 km away
  30. 2.56 km W of Cobb, California · 13333 days ago · 1 km deep · 5 km away
  31. 3.66 km W of Cobb, California · 13333 days ago · 1 km deep · 5 km away
  32. 2.75 km W of Cobb, California · 13333 days ago · -1 km deep · 4 km away
  33. 2.19 km W of Cobb, California · 13333 days ago · 1 km deep · 6 km away
  34. 2.15 km SW of Cobb, California · 13333 days ago · 2 km deep · 0 km away
  35. 1.75 km SSW of Cobb, California · 13333 days ago · 1 km deep · 2 km away
  36. 1.65 km SSW of Cobb, California · 13333 days ago · -1 km deep · 2 km away
  37. 2.18 km ESE of Willits, California · 13332 days ago · 2 km deep · 78 km away
  38. 3.07 km WSW of Cobb, California · 13332 days ago · 1 km deep · 3 km away
  39. 1.57 km W of Cobb, California · 13332 days ago · 3 km deep · 5 km away
  40. 1.69 km NW of Cobb, California · 13331 days ago · 1 km deep · 11 km away
  41. 1.85 km WSW of Cobb, California · 13331 days ago · 2 km deep · 3 km away
  42. 2.15 km SE of Hopland, California · 13331 days ago · 4 km deep · 31 km away
  43. 2.08 km W of Cobb, California · 13330 days ago · 3 km deep · 7 km away
  44. 2.24 km WSW of Cobb, California · 13329 days ago · 3 km deep · 3 km away
  45. 1.65 km SW of Cobb, California · 13329 days ago · 0 km deep · 1 km away
  46. 1.93 km S of Cobb, California · 13328 days ago · 2 km deep · 5 km away
  47. 1.710 km NE of Clearlake, California · 13328 days ago · -1 km deep · 34 km away
  48. 1.66 km SW of Cobb, California · 13328 days ago · 0 km deep · 0 km away
  49. 1.710 km W of Cobb, California · 13327 days ago · 0 km deep · 7 km away
  50. 2.24 km SW of Cobb, California · 13327 days ago · 1 km deep · 2 km away
  51. 1.59 km W of Cobb, California · 13327 days ago · 1 km deep · 7 km away
  52. 1.62 km NE of Santa Rosa, California · 13327 days ago · 8 km deep · 37 km away
  53. 2.23 km NNE of Talmage, California · 13327 days ago · 6 km deep · 53 km away
  54. 1.75 km ENE of Sonoma, California · 13327 days ago · 9 km deep · 62 km away
  55. 1.65 km WSW of Cobb, California · 13327 days ago · 1 km deep · 2 km away
  56. 1.67 km W of Cobb, California · 13327 days ago · 3 km deep · 5 km away
  57. 2.3near the coast of Northern California · 13326 days ago · 2 km deep · 81 km away
  58. 1.86 km SW of Cobb, California · 13325 days ago · 3 km deep · 1 km away
  59. 1.66 km W of Cobb, California · 13324 days ago · 3 km deep · 5 km away
  60. 1.64 km ESE of Roseland, California · 13324 days ago · 7 km deep · 43 km away

The first 60 of 174.

Before

  1. 1.65 km N of Windsor, California · 13345 days ago · -1 km deep · 21 km away
  2. 1.75 km SW of Cobb, California · 13345 days ago · 2 km deep · 1 km away
  3. 1.59 km SW of Napa, California · 13345 days ago · 9 km deep · 71 km away
  4. 2.07 km WSW of Cobb, California · 13346 days ago · 0 km deep · 3 km away
  5. 2.47 km WSW of Cobb, California · 13346 days ago · 4 km deep · 3 km away
  6. 1.73 km S of Cobb, California · 13347 days ago · 2 km deep · 5 km away
  7. 1.56 km W of Cobb, California · 13347 days ago · 1 km deep · 5 km away
  8. 2.85 km WSW of Cobb, California · 13348 days ago · 1 km deep · 2 km away
  9. 1.77 km SSW of Willits, California · 13348 days ago · 2 km deep · 81 km away
  10. 1.57 km WSW of Cobb, California · 13348 days ago · 1 km deep · 3 km away
  11. 2.17 km WSW of Cobb, California · 13348 days ago · 1 km deep · 3 km away
  12. 2.87 km WSW of Cobb, California · 13348 days ago · 1 km deep · 3 km away
  13. 2.27 km WSW of Cobb, California · 13348 days ago · 1 km deep · 3 km away
  14. 1.87 km W of Cobb, California · 13349 days ago · 3 km deep · 5 km away
  15. 1.97 km W of Cobb, California · 13349 days ago · 3 km deep · 5 km away
  16. 1.616 km ENE of Potter Valley, California · 13350 days ago · 0 km deep · 66 km away
  17. 1.98 km ESE of Hidden Valley Lake, California · 13350 days ago · 7 km deep · 27 km away
  18. 1.67 km W of Cobb, California · 13350 days ago · 4 km deep · 5 km away
  19. 1.61 km S of Clearlake, California · 13350 days ago · 5 km deep · 22 km away
  20. 1.89 km W of Cobb, California · 13350 days ago · 0 km deep · 6 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc154667. Read Sun, Oct 4, 2026, 3:58 PM UTC.