California earthquakes

M1.8 earthquake 5 km W of Cobb, California

A magnitude 1.8 earthquake struck 5 km W of Cobb, California on Fri, Jun 8, 1990, 5:10 PM PDT (00:10 UTC), 1 km (0 mi) below the surface.

A larger quake followed: M3.5 7 km WSW 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
1.8 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1990-06-09 00:10:37 UTC
Depth
0.5 km (0.3 mi), shallow
Epicenter
38.818° N, 122.786° 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
±0.16
Depth from
From location
Station coverage gap
47°
Stations used
19

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 178 in the 60 days after this one and 91 in the 30 days before it.

After

  1. 1.65 km W of Cobb, California · 13266 days ago · 0 km deep · 0 km away
  2. 1.65 km WSW of Cobb, California · 13266 days ago · 1 km deep · 1 km away
  3. 1.97 km WSW of Cobb, California · 13265 days ago · 2 km deep · 3 km away
  4. 2.86 km W of Cobb, California · 13265 days ago · 3 km deep · 1 km away
  5. 3.55 km SW of Yountville, California · 13264 days ago · 10 km deep · 60 km away
  6. 1.67 km W of Cobb, California · 13263 days ago · 3 km deep · 2 km away
  7. 1.63 km SSW of Cobb, California · 13262 days ago · 1 km deep · 5 km away
  8. 1.74 km W of Cobb, California · 13262 days ago · 2 km deep · 1 km away
  9. 2.16 km W of Cobb, California · 13262 days ago · 0 km deep · 1 km away
  10. 1.54 km SSW of Cobb, California · 13261 days ago · 0 km deep · 5 km away
  11. 1.93 km SW of Moskowite Corner, California · 13261 days ago · 8 km deep · 66 km away
  12. 2.45 km SW of Cobb, California · 13260 days ago · 1 km deep · 3 km away
  13. 1.92 km SW of Cobb, California · 13260 days ago · 1 km deep · 4 km away
  14. 1.819 km ENE of Potter Valley, California · 13259 days ago · 8 km deep · 63 km away
  15. 2.07 km W of Cobb, California · 13259 days ago · 3 km deep · 3 km away
  16. 1.913 km NNW of Moskowite Corner, California · 13257 days ago · 3 km deep · 55 km away
  17. 1.58 km W of Cobb, California · 13257 days ago · 0 km deep · 3 km away
  18. 2.010 km NNE of Larkfield-Wikiup, California · 13257 days ago · 5 km deep · 26 km away
  19. 2.38 km W of Cobb, California · 13257 days ago · 0 km deep · 3 km away
  20. 2.85 km WSW of Cobb, California · 13256 days ago · 2 km deep · 3 km away
  21. 2.08 km ENE of Potter Valley, California · 13256 days ago · 5 km deep · 61 km away
  22. 1.78 km E of Potter Valley, California · 13256 days ago · 2 km deep · 61 km away
  23. 1.64 km N of Larkfield-Wikiup, California · 13255 days ago · 5 km deep · 30 km away
  24. 1.9Northern California · 13255 days ago · 4 km deep · 2 km away
  25. 1.73 km WNW of Cobb, California · 13255 days ago · 1 km deep · 3 km away
  26. 2.112 km SSW of Kelseyville, California · 13254 days ago · 2 km deep · 11 km away
  27. 1.75 km SW of Cobb, California · 13254 days ago · -1 km deep · 4 km away
  28. 1.76 km SW of Cobb, California · 13254 days ago · 1 km deep · 5 km away
  29. 1.87 km W of Cobb, California · 13254 days ago · 3 km deep · 2 km away
  30. 2.925 km NE of Potter Valley, CA · 13254 days ago · 9 km deep · 78 km away
  31. 1.68 km W of Cobb, CA · 13254 days ago · -1 km deep · 3 km away
  32. 1.76 km SW of Cobb, California · 13254 days ago · 0 km deep · 4 km away
  33. 1.74 km SW of Cobb, California · 13253 days ago · -1 km deep · 4 km away
  34. 1.64 km SW of Cobb, California · 13253 days ago · 0 km deep · 4 km away
  35. 1.55 km ESE of Boonville, California · 13253 days ago · 9 km deep · 49 km away
  36. 1.58 km NNE of Geyserville, California · 13253 days ago · 15 km deep · 7 km away
  37. 2.17 km W of Cobb, California · 13252 days ago · 4 km deep · 2 km away
  38. 1.64 km S of Cobb, California · 13252 days ago · 2 km deep · 7 km away
  39. 2.06 km SW of Cobb, California · 13251 days ago · 0 km deep · 4 km away
  40. 2.09 km SE of Willits, California · 13251 days ago · 1 km deep · 73 km away
  41. 1.68 km W of Cobb, California · 13251 days ago · 0 km deep · 3 km away
  42. 1.910 km ESE of Willits, California · 13251 days ago · 4 km deep · 73 km away
  43. 1.911 km NE of Angwin, California · 13251 days ago · 6 km deep · 43 km away
  44. 2.07 km E of Clearlake Oaks, California · 13250 days ago · -1 km deep · 29 km away
  45. 2.17 km WSW of Cobb, California · 13250 days ago · 4 km deep · 3 km away
  46. 1.97 km E of Clearlake Oaks, California · 13249 days ago · -1 km deep · 28 km away
  47. 1.66 km E of Clearlake Oaks, California · 13249 days ago · -1 km deep · 29 km away
  48. 1.67 km NE of Clearlake, California · 13249 days ago · 2 km deep · 28 km away
  49. 2.56 km W of Cobb, California · 13249 days ago · 3 km deep · 1 km away
  50. 1.512 km ENE of Cloverdale, California · 13249 days ago · 1 km deep · 11 km away
  51. 2.812 km ENE of Cloverdale, California · 13249 days ago · 1 km deep · 11 km away
  52. 2.06 km SW of Cobb, California · 13249 days ago · 0 km deep · 5 km away
  53. 2.64 km SSW of Cobb, California · 13248 days ago · 0 km deep · 5 km away
  54. 1.66 km WSW of Cobb, California · 13248 days ago · 0 km deep · 2 km away
  55. 1.73 km E of Sonoma, California · 13247 days ago · 4 km deep · 67 km away
  56. 1.66 km NE of Hopland, California · 13247 days ago · 3 km deep · 32 km away
  57. 1.87 km W of Cobb, California · 13247 days ago · 3 km deep · 2 km away
  58. 1.54 km NNE of Talmage, California · 13247 days ago · 7 km deep · 50 km away
  59. 1.93 km SW of Cobb, California · 13246 days ago · 2 km deep · 4 km away
  60. 2.59 km W of Cobb, California · 13246 days ago · 1 km deep · 4 km away

The first 60 of 178.

Before

  1. 1.84 km WNW of Cobb, California · 13266 days ago · 2 km deep · 2 km away
  2. 2.05 km SW of Cobb, California · 13266 days ago · 1 km deep · 3 km away
  3. 3.64 km W of Cobb, California · 13266 days ago · 2 km deep · 1 km away
  4. 2.04 km W of Cobb, California · 13266 days ago · 1 km deep · 1 km away
  5. 1.74 km W of Cobb, California · 13266 days ago · 0 km deep · 1 km away
  6. 1.97 km WSW of Cobb, California · 13267 days ago · 0 km deep · 2 km away
  7. 2.29 km W of Cobb, California · 13268 days ago · 1 km deep · 4 km away
  8. 2.59 km W of Cobb, California · 13268 days ago · -1 km deep · 4 km away
  9. 2.09 km W of Cobb, California · 13268 days ago · 1 km deep · 4 km away
  10. 1.5Northern California · 13268 days ago · 4 km deep · 18 km away
  11. 2.45 km W of Cobb, California · 13270 days ago · 1 km deep · 1 km away
  12. 1.65 km WSW of Cobb, California · 13270 days ago · 1 km deep · 1 km away
  13. 3.17 km WSW of Cobb, California · 13270 days ago · 2 km deep · 2 km away
  14. 1.92 km SSE of North Lakeport, California · 13270 days ago · 15 km deep · 29 km away
  15. 1.610 km ENE of Hidden Valley Lake, California · 13271 days ago · 4 km deep · 30 km away
  16. 1.65 km SSW of Cobb, California · 13271 days ago · -1 km deep · 5 km away
  17. 2.86 km W of Cobb, California · 13272 days ago · 2 km deep · 1 km away
  18. 2.09 km W of Cobb, California · 13272 days ago · 2 km deep · 4 km away
  19. 2.31 km SSE of Clear Lake Riviera, California · 13272 days ago · -1 km deep · 15 km away
  20. 2.210 km NNE of Brooktrails, California · 13272 days ago · 8 km deep · 93 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc159047. Read Sun, Oct 4, 2026, 9:41 AM UTC.