California earthquakes

M1.6 earthquake 8 km W of Cobb, California

A magnitude 1.6 earthquake struck 8 km W of Cobb, California on Sat, Jun 23, 1990, 5:33 PM PDT (00:33 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M4.2 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
1.6 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1990-06-24 00:33:40 UTC
Depth
0.4 km (0.2 mi), shallow
Epicenter
38.823° N, 122.819° 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 0.4 km horizontally, 0.7 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
96°
Stations used
7

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 165 in the 60 days after this one and 81 in the 30 days before it.

After

  1. 1.910 km ESE of Willits, California · 13252 days ago · 4 km deep · 71 km away
  2. 1.911 km NE of Angwin, California · 13251 days ago · 6 km deep · 46 km away
  3. 2.07 km E of Clearlake Oaks, California · 13250 days ago · -1 km deep · 30 km away
  4. 2.17 km WSW of Cobb, California · 13250 days ago · 4 km deep · 3 km away
  5. 1.97 km E of Clearlake Oaks, California · 13250 days ago · -1 km deep · 30 km away
  6. 1.66 km E of Clearlake Oaks, California · 13250 days ago · -1 km deep · 30 km away
  7. 1.67 km NE of Clearlake, California · 13250 days ago · 2 km deep · 30 km away
  8. 2.56 km W of Cobb, California · 13249 days ago · 3 km deep · 1 km away
  9. 1.512 km ENE of Cloverdale, California · 13249 days ago · 1 km deep · 8 km away
  10. 2.812 km ENE of Cloverdale, California · 13249 days ago · 1 km deep · 8 km away
  11. 2.06 km SW of Cobb, California · 13249 days ago · 0 km deep · 7 km away
  12. 2.64 km SSW of Cobb, California · 13249 days ago · 0 km deep · 8 km away
  13. 1.66 km WSW of Cobb, California · 13249 days ago · 0 km deep · 4 km away
  14. 1.73 km E of Sonoma, California · 13248 days ago · 4 km deep · 69 km away
  15. 1.66 km NE of Hopland, California · 13247 days ago · 3 km deep · 29 km away
  16. 1.87 km W of Cobb, California · 13247 days ago · 3 km deep · 1 km away
  17. 1.54 km NNE of Talmage, California · 13247 days ago · 7 km deep · 47 km away
  18. 1.93 km SW of Cobb, California · 13246 days ago · 2 km deep · 7 km away
  19. 2.59 km W of Cobb, California · 13246 days ago · 1 km deep · 1 km away
  20. 1.810 km W of Cobb, California · 13246 days ago · -1 km deep · 2 km away
  21. 1.910 km W of Cobb, California · 13246 days ago · 0 km deep · 2 km away
  22. 2.47 km WSW of Cobb, California · 13245 days ago · 2 km deep · 3 km away
  23. 2.46 km SW of Cobb, California · 13245 days ago · -1 km deep · 5 km away
  24. 1.69 km W of Cobb, California · 13245 days ago · 2 km deep · 2 km away
  25. 2.05 km W of Cobb, California · 13244 days ago · 2 km deep · 2 km away
  26. 2.83 km SSW of Cobb, California · 13244 days ago · 1 km deep · 7 km away
  27. 1.88 km W of Cobb, California · 13244 days ago · 0 km deep · 0 km away
  28. 2.09 km SSE of Potter Valley, California · 13244 days ago · 4 km deep · 52 km away
  29. 2.29 km WNW of Cobb, California · 13244 days ago · 2 km deep · 2 km away
  30. 1.95 km WSW of Cobb, California · 13244 days ago · 0 km deep · 4 km away
  31. 1.78 km WSW of Cobb, California · 13243 days ago · 0 km deep · 2 km away
  32. 2.96 km W of Allendale, California · 13243 days ago · 2 km deep · 81 km away
  33. 1.88 km W of Cobb, California · 13242 days ago · 1 km deep · 1 km away
  34. 3.08 km W of Cobb, California · 13242 days ago · 0 km deep · 2 km away
  35. 1.58 km WNW of Cobb, California · 13242 days ago · 2 km deep · 2 km away
  36. 1.88 km W of Cobb, California · 13242 days ago · 1 km deep · 1 km away
  37. 1.54 km W of Cobb, California · 13241 days ago · 0 km deep · 4 km away
  38. 1.810 km W of Cobb, California · 13240 days ago · 1 km deep · 2 km away
  39. 2.05 km WSW of Cobb, California · 13239 days ago · 3 km deep · 3 km away
  40. 2.55 km W of Cobb, California · 13238 days ago · 2 km deep · 2 km away
  41. 1.95 km W of Cobb, California · 13238 days ago · 0 km deep · 2 km away
  42. 1.99 km E of Hidden Valley Lake, California · 13237 days ago · 7 km deep · 32 km away
  43. 2.04 km WNW of Potter Valley, California · 13237 days ago · 2 km deep · 65 km away
  44. 1.97 km WSW of Cobb, California · 13236 days ago · 3 km deep · 3 km away
  45. 1.615 km N of Upper Lake, California · 13236 days ago · 7 km deep · 55 km away
  46. 1.77 km W of Cobb, California · 13236 days ago · 0 km deep · 1 km away
  47. 1.79 km ESE of Hopland, California · 13235 days ago · 2 km deep · 22 km away
  48. 2.310 km N of Cloverdale, California · 13235 days ago · 2 km deep · 18 km away
  49. 1.66 km WNW of Cobb, California · 13234 days ago · 1 km deep · 2 km away
  50. 1.66 km W of Cobb, California · 13234 days ago · 1 km deep · 2 km away
  51. 1.73 km W of Cobb, California · 13234 days ago · 0 km deep · 5 km away
  52. 1.77 km W of Cobb, California · 13234 days ago · 3 km deep · 1 km away
  53. 1.66 km WSW of Kenwood, California · 13234 days ago · 7 km deep · 51 km away
  54. 1.59 km S of Cobb, California · 13234 days ago · 4 km deep · 11 km away
  55. 1.98 km W of Cobb, California · 13234 days ago · 0 km deep · 0 km away
  56. 3.57 km WSW of Cobb, California · 13234 days ago · 0 km deep · 2 km away
  57. 1.88 km S of Cobb, California · 13234 days ago · 4 km deep · 11 km away
  58. 3.06 km WSW of Kenwood, California · 13234 days ago · 8 km deep · 51 km away
  59. 2.221 km NE of Potter Valley, California · 13233 days ago · 7 km deep · 71 km away
  60. 1.722 km NE of Potter Valley, California · 13233 days ago · 6 km deep · 70 km away

The first 60 of 165.

Before

  1. 2.09 km SE of Willits, California · 13252 days ago · 1 km deep · 71 km away
  2. 2.06 km SW of Cobb, California · 13252 days ago · 0 km deep · 6 km away
  3. 1.64 km S of Cobb, California · 13252 days ago · 2 km deep · 9 km away
  4. 2.17 km W of Cobb, California · 13253 days ago · 4 km deep · 1 km away
  5. 1.58 km NNE of Geyserville, California · 13253 days ago · 15 km deep · 6 km away
  6. 1.55 km ESE of Boonville, California · 13253 days ago · 9 km deep · 47 km away
  7. 1.64 km SW of Cobb, California · 13253 days ago · 0 km deep · 7 km away
  8. 1.74 km SW of Cobb, California · 13253 days ago · -1 km deep · 7 km away
  9. 1.76 km SW of Cobb, California · 13254 days ago · 0 km deep · 6 km away
  10. 1.68 km W of Cobb, CA · 13254 days ago · -1 km deep · 1 km away
  11. 2.925 km NE of Potter Valley, CA · 13254 days ago · 9 km deep · 77 km away
  12. 1.87 km W of Cobb, California · 13254 days ago · 3 km deep · 1 km away
  13. 1.76 km SW of Cobb, California · 13254 days ago · 1 km deep · 7 km away
  14. 1.75 km SW of Cobb, California · 13254 days ago · -1 km deep · 6 km away
  15. 2.112 km SSW of Kelseyville, California · 13254 days ago · 2 km deep · 8 km away
  16. 1.73 km WNW of Cobb, California · 13255 days ago · 1 km deep · 5 km away
  17. 1.9Northern California · 13255 days ago · 4 km deep · 1 km away
  18. 1.64 km N of Larkfield-Wikiup, California · 13255 days ago · 5 km deep · 31 km away
  19. 1.78 km E of Potter Valley, California · 13256 days ago · 2 km deep · 60 km away
  20. 2.08 km ENE of Potter Valley, California · 13256 days ago · 5 km deep · 60 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1178099. Read Sun, Oct 4, 2026, 3:08 PM UTC.