California earthquakes

M1.8 earthquake 4 km W of Cobb, California

A magnitude 1.8 earthquake struck 4 km W of Cobb, California on Tue, May 29, 1990, 4:20 PM PDT (23:20 UTC), 1 km (1 mi) below the surface.

A larger quake followed: M3.6 4 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
1.8 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1990-05-29 23:20:47 UTC
Depth
1.5 km (0.9 mi), shallow
Epicenter
38.821° N, 122.777° 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, 0.4 km in depth
Magnitude uncertainty
±0.34
Depth from
From location
Station coverage gap
75°
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: 172 in the 60 days after this one and 77 in the 30 days before it.

After

  1. 2.76 km W of Cobb, California · 13277 days ago · 0 km deep · 2 km away
  2. 1.87 km E of Hopland, California · 13276 days ago · 5 km deep · 28 km away
  3. 1.93 km SW of Bodega Bay, California · 13275 days ago · 10 km deep · 62 km away
  4. 1.94 km SW of Cobb, California · 13275 days ago · 3 km deep · 4 km away
  5. 2.212 km W of Cobb, California · 13275 days ago · 1 km deep · 8 km away
  6. 1.712 km W of Cobb, California · 13275 days ago · 1 km deep · 8 km away
  7. 2.77 km W of Cobb, California · 13275 days ago · 2 km deep · 3 km away
  8. 1.713 km ENE of Cloverdale, California · 13275 days ago · 0 km deep · 8 km away
  9. 2.05 km W of Cobb, California · 13275 days ago · 2 km deep · 1 km away
  10. 2.15 km SW of Cobb, California · 13274 days ago · 2 km deep · 4 km away
  11. 1.65 km W of Cobb, California · 13274 days ago · 0 km deep · 1 km away
  12. 2.210 km NNE of Brooktrails, California · 13273 days ago · 8 km deep · 93 km away
  13. 2.31 km SSE of Clear Lake Riviera, California · 13272 days ago · -1 km deep · 14 km away
  14. 2.09 km W of Cobb, California · 13272 days ago · 2 km deep · 5 km away
  15. 2.86 km W of Cobb, California · 13272 days ago · 2 km deep · 2 km away
  16. 1.65 km SSW of Cobb, California · 13272 days ago · -1 km deep · 5 km away
  17. 1.610 km ENE of Hidden Valley Lake, California · 13272 days ago · 4 km deep · 29 km away
  18. 1.92 km SSE of North Lakeport, California · 13270 days ago · 15 km deep · 29 km away
  19. 3.17 km WSW of Cobb, California · 13270 days ago · 2 km deep · 3 km away
  20. 1.65 km WSW of Cobb, California · 13270 days ago · 1 km deep · 1 km away
  21. 2.45 km W of Cobb, California · 13270 days ago · 1 km deep · 1 km away
  22. 1.5Northern California · 13269 days ago · 4 km deep · 19 km away
  23. 2.09 km W of Cobb, California · 13269 days ago · 1 km deep · 5 km away
  24. 2.59 km W of Cobb, California · 13269 days ago · -1 km deep · 5 km away
  25. 2.29 km W of Cobb, California · 13268 days ago · 1 km deep · 5 km away
  26. 1.97 km WSW of Cobb, California · 13268 days ago · 0 km deep · 3 km away
  27. 1.74 km W of Cobb, California · 13267 days ago · 0 km deep · 1 km away
  28. 2.04 km W of Cobb, California · 13267 days ago · 1 km deep · 1 km away
  29. 3.64 km W of Cobb, California · 13267 days ago · 2 km deep · 1 km away
  30. 2.05 km SW of Cobb, California · 13267 days ago · 1 km deep · 3 km away
  31. 1.84 km WNW of Cobb, California · 13267 days ago · 2 km deep · 1 km away
  32. 1.85 km W of Cobb, California · 13267 days ago · 1 km deep · 1 km away
  33. 1.65 km W of Cobb, California · 13267 days ago · 0 km deep · 1 km away
  34. 1.65 km WSW of Cobb, California · 13266 days ago · 1 km deep · 2 km away
  35. 1.97 km WSW of Cobb, California · 13266 days ago · 2 km deep · 4 km away
  36. 2.86 km W of Cobb, California · 13265 days ago · 3 km deep · 2 km away
  37. 3.55 km SW of Yountville, California · 13264 days ago · 10 km deep · 59 km away
  38. 1.67 km W of Cobb, California · 13263 days ago · 3 km deep · 3 km away
  39. 1.63 km SSW of Cobb, California · 13263 days ago · 1 km deep · 4 km away
  40. 1.74 km W of Cobb, California · 13262 days ago · 2 km deep · 0 km away
  41. 2.16 km W of Cobb, California · 13262 days ago · 0 km deep · 2 km away
  42. 1.54 km SSW of Cobb, California · 13261 days ago · 0 km deep · 5 km away
  43. 1.93 km SW of Moskowite Corner, California · 13261 days ago · 8 km deep · 66 km away
  44. 2.45 km SW of Cobb, California · 13261 days ago · 1 km deep · 4 km away
  45. 1.92 km SW of Cobb, California · 13261 days ago · 1 km deep · 4 km away
  46. 1.819 km ENE of Potter Valley, California · 13260 days ago · 8 km deep · 62 km away
  47. 2.07 km W of Cobb, California · 13259 days ago · 3 km deep · 3 km away
  48. 1.913 km NNW of Moskowite Corner, California · 13258 days ago · 3 km deep · 55 km away
  49. 1.58 km W of Cobb, California · 13258 days ago · 0 km deep · 4 km away
  50. 2.010 km NNE of Larkfield-Wikiup, California · 13257 days ago · 5 km deep · 26 km away
  51. 2.38 km W of Cobb, California · 13257 days ago · 0 km deep · 4 km away
  52. 2.85 km WSW of Cobb, California · 13257 days ago · 2 km deep · 3 km away
  53. 2.08 km ENE of Potter Valley, California · 13257 days ago · 5 km deep · 61 km away
  54. 1.78 km E of Potter Valley, California · 13256 days ago · 2 km deep · 61 km away
  55. 1.64 km N of Larkfield-Wikiup, California · 13255 days ago · 5 km deep · 30 km away
  56. 1.9Northern California · 13255 days ago · 4 km deep · 3 km away
  57. 1.73 km WNW of Cobb, California · 13255 days ago · 1 km deep · 2 km away
  58. 2.112 km SSW of Kelseyville, California · 13255 days ago · 2 km deep · 12 km away
  59. 1.75 km SW of Cobb, California · 13254 days ago · -1 km deep · 4 km away
  60. 1.76 km SW of Cobb, California · 13254 days ago · 1 km deep · 5 km away

The first 60 of 172.

Before

  1. 1.812 km ENE of Cloverdale, California · 13278 days ago · 1 km deep · 8 km away
  2. 1.86 km W of Cobb, California · 13278 days ago · 4 km deep · 2 km away
  3. 1.6Northern California · 13278 days ago · -1 km deep · 3 km away
  4. 2.85 km WSW of Cobb, California · 13279 days ago · 0 km deep · 1 km away
  5. 2.17 km WSW of Cobb, California · 13279 days ago · 3 km deep · 3 km away
  6. 1.65 km W of Cobb, California · 13279 days ago · 0 km deep · 1 km away
  7. 1.612 km ENE of Cloverdale, California · 13279 days ago · 0 km deep · 9 km away
  8. 1.90 km W of Crockett, California · 13280 days ago · 10 km deep · 98 km away
  9. 1.87 km WSW of Cobb, California · 13280 days ago · 1 km deep · 3 km away
  10. 2.06 km SW of Cobb, California · 13282 days ago · 2 km deep · 3 km away
  11. 1.95 km W of Cobb, California · 13282 days ago · 0 km deep · 1 km away
  12. 2.74 km S of Cobb, California · 13282 days ago · 1 km deep · 6 km away
  13. 1.69 km W of Cobb, California · 13283 days ago · 0 km deep · 5 km away
  14. 2.19 km W of Cobb, California · 13283 days ago · 0 km deep · 4 km away
  15. 2.48 km W of Cobb, California · 13283 days ago · -1 km deep · 4 km away
  16. 3.19 km W of Cobb, California · 13283 days ago · -1 km deep · 5 km away
  17. 3.58 km W of Cobb, California · 13283 days ago · -1 km deep · 4 km away
  18. 1.69 km W of Cobb, California · 13283 days ago · 1 km deep · 5 km away
  19. 2.24 km W of Cobb, California · 13284 days ago · 2 km deep · 0 km away
  20. 2.25 km SW of Cobb, California · 13285 days ago · 2 km deep · 4 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc158545. Read Sun, Oct 4, 2026, 3:59 PM UTC.