California earthquakes

M1.5 earthquake 6 km W of Cobb, California

A magnitude 1.5 earthquake struck 6 km W of Cobb, California on Sat, Jan 20, 1990, 3:09 AM PST (11:09 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.8 4 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.

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The earthquake

Magnitude
1.5 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1990-01-20 11:09:56 UTC
Depth
2.6 km (1.6 mi), shallow
Epicenter
38.817° N, 122.797° 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, 0.6 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
49°
Stations used
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 182 in the 60 days after this one and 125 in the 30 days before it.

After

  1. 1.77 km WSW of Cobb, California · 13407 days ago · 1 km deep · 2 km away
  2. 1.66 km WNW of Cobb, California · 13406 days ago · 0 km deep · 3 km away
  3. 2.211 km NNE of Angwin, California · 13406 days ago · 6 km deep · 39 km away
  4. 2.07 km N of Hopland, California · 13406 days ago · -1 km deep · 37 km away
  5. 1.69 km NNE of Brooktrails, California · 13405 days ago · 8 km deep · 91 km away
  6. 1.66 km S of Green Valley, California · 13405 days ago · 5 km deep · 88 km away
  7. 1.5Northern California · 13404 days ago · 0 km deep · 3 km away
  8. 1.87 km W of Cobb, California · 13402 days ago · 0 km deep · 2 km away
  9. 2.55 km SW of Cobb, California · 13402 days ago · -1 km deep · 4 km away
  10. 1.813 km W of Cobb, CA · 13402 days ago · 2 km deep · 7 km away
  11. 2.15 km S of Cobb, California · 13402 days ago · 2 km deep · 8 km away
  12. 1.56 km SSE of Moskowite Corner, California · 13402 days ago · 8 km deep · 73 km away
  13. 1.66 km WSW of Cobb, California · 13402 days ago · 0 km deep · 3 km away
  14. 1.66 km W of Cobb, California · 13402 days ago · 0 km deep · 2 km away
  15. 1.65 km SSW of Cobb, California · 13401 days ago · -1 km deep · 5 km away
  16. 2.55 km SW of Cobb, California · 13400 days ago · -1 km deep · 5 km away
  17. 1.94 km SW of Cobb, California · 13400 days ago · 0 km deep · 4 km away
  18. 3.84 km SW of Cobb, California · 13400 days ago · 2 km deep · 4 km away
  19. 1.96 km SW of Cobb, California · 13400 days ago · 0 km deep · 4 km away
  20. 2.05 km W of Cobb, California · 13400 days ago · 0 km deep · 1 km away
  21. 1.64 km W of Cobb, California · 13400 days ago · 1 km deep · 2 km away
  22. 1.611 km NE of Upper Lake, California · 13399 days ago · 4 km deep · 48 km away
  23. 2.75 km W of Cobb, California · 13399 days ago · 1 km deep · 2 km away
  24. 2.15 km W of Cobb, California · 13399 days ago · 1 km deep · 1 km away
  25. 2.74 km S of Cobb, California · 13399 days ago · 1 km deep · 7 km away
  26. 1.88 km W of Cobb, California · 13398 days ago · -1 km deep · 2 km away
  27. 2.021 km NE of Potter Valley, California · 13398 days ago · 6 km deep · 70 km away
  28. 1.77 km S of Cobb, California · 13398 days ago · 2 km deep · 10 km away
  29. 1.912 km ENE of Cloverdale, California · 13397 days ago · 0 km deep · 7 km away
  30. 1.55 km WSW of Cobb, California · 13397 days ago · 0 km deep · 3 km away
  31. 2.19 km W of Cobb, California · 13397 days ago · 0 km deep · 3 km away
  32. 1.8near the coast of Northern California · 13397 days ago · 4 km deep · 35 km away
  33. 1.624 km NE of Potter Valley, California · 13396 days ago · 10 km deep · 77 km away
  34. 1.74 km W of Cobb, California · 13395 days ago · 1 km deep · 2 km away
  35. 1.69 km W of Cobb, California · 13395 days ago · 0 km deep · 3 km away
  36. 2.35 km NE of Ukiah, California · 13395 days ago · 1 km deep · 52 km away
  37. 1.66 km W of Cobb, California · 13394 days ago · 3 km deep · 0 km away
  38. 1.69 km W of Cobb, California · 13393 days ago · 1 km deep · 3 km away
  39. 2.57 km E of Willits, California · 13393 days ago · 6 km deep · 77 km away
  40. 1.85 km W of Cobb, California · 13393 days ago · 1 km deep · 2 km away
  41. 1.85 km W of Cobb, California · 13392 days ago · 2 km deep · 1 km away
  42. 1.85 km WSW of Cobb, California · 13391 days ago · 0 km deep · 2 km away
  43. 3.17 km WSW of Cobb, California · 13391 days ago · 3 km deep · 2 km away
  44. 1.98 km N of Hopland, California · 13389 days ago · -1 km deep · 37 km away
  45. 2.27 km WSW of Cobb, California · 13389 days ago · 1 km deep · 2 km away
  46. 2.36 km NNW of The Geysers, CA · 13389 days ago · 1 km deep · 1 km away
  47. 1.612 km W of Cobb, California · 13389 days ago · 0 km deep · 7 km away
  48. 1.713 km W of Cobb, California · 13389 days ago · 0 km deep · 7 km away
  49. 2.36 km W of Cobb, California · 13389 days ago · 4 km deep · 0 km away
  50. 1.64 km W of Cobb, California · 13389 days ago · 2 km deep · 2 km away
  51. 1.67 km W of Cobb, California · 13388 days ago · 1 km deep · 1 km away
  52. 1.86 km W of Cobb, California · 13388 days ago · 0 km deep · 0 km away
  53. 1.612 km ENE of Cloverdale, California · 13388 days ago · 1 km deep · 7 km away
  54. 2.56 km W of Cobb, California · 13387 days ago · 1 km deep · 1 km away
  55. 1.66 km W of Cobb, California · 13387 days ago · 0 km deep · 1 km away
  56. 1.86 km W of Cobb, California · 13387 days ago · 1 km deep · 1 km away
  57. 1.76 km S of Cobb, California · 13386 days ago · 2 km deep · 9 km away
  58. 1.74 km W of Cobb, California · 13386 days ago · 1 km deep · 2 km away
  59. 1.513 km N of Brooktrails, California · 13385 days ago · 5 km deep · 98 km away
  60. 1.512 km ESE of Hidden Valley Lake, California · 13385 days ago · 4 km deep · 32 km away

The first 60 of 182.

Before

  1. 3.15 km WSW of Cobb, California · 13407 days ago · 2 km deep · 3 km away
  2. 1.84 km W of Cobb, California · 13407 days ago · 0 km deep · 1 km away
  3. 1.97 km WSW of Cobb, California · 13408 days ago · 1 km deep · 2 km away
  4. 2.05 km W of Cobb, California · 13409 days ago · 0 km deep · 1 km away
  5. 1.78 km W of Cobb, California · 13409 days ago · -1 km deep · 2 km away
  6. 1.75 km W of Cobb, California · 13409 days ago · -1 km deep · 2 km away
  7. 1.625 km NNE of Potter Valley, California · 13409 days ago · 0 km deep · 84 km away
  8. 1.75 km SSW of Green Valley, California · 13409 days ago · 8 km deep · 87 km away
  9. 2.55 km N of Upper Lake, California · 13410 days ago · 77 km deep · 45 km away
  10. 2.22 km SSE of Fulton, California · 13410 days ago · 7 km deep · 38 km away
  11. 1.99 km NNE of Brooktrails, California · 13410 days ago · 6 km deep · 90 km away
  12. 1.55 km WSW of Cobb, California · 13410 days ago · 0 km deep · 2 km away
  13. 1.83 km SSW of Cobb, California · 13410 days ago · 1 km deep · 5 km away
  14. 1.77 km E of Willits, California · 13411 days ago · 3 km deep · 76 km away
  15. 1.77 km E of Willits, California · 13412 days ago · 7 km deep · 76 km away
  16. 2.45 km SW of Cobb, California · 13412 days ago · 0 km deep · 4 km away
  17. 2.06 km W of Cobb, California · 13412 days ago · 1 km deep · 1 km away
  18. 1.92 km SSE of Larkfield-Wikiup, California · 13412 days ago · 6 km deep · 36 km away
  19. 1.713 km W of Cobb, California · 13413 days ago · -1 km deep · 7 km away
  20. 1.611 km WNW of Calistoga, California · 13413 days ago · 5 km deep · 23 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc150962. Read Mon, Oct 5, 2026, 12:03 PM UTC.