California earthquakes

M1.9 earthquake 6 km W of Cobb, California

A magnitude 1.9 earthquake struck 6 km W of Cobb, California on Sat, Jan 30, 1988, 10:19 PM PST (06:19 UTC), 1 km (0 mi) below the surface.

A larger quake followed: M2.1 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
1.9 (md), micro
Local time
UTC
1988-01-31 06:19:10 UTC
Depth
0.7 km (0.4 mi), shallow
Epicenter
38.829° N, 122.800° 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, 0.5 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
65°
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: 166 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 2.16 km W of Cobb, California · 14110 days ago · 3 km deep · 1 km away
  2. 1.78 km W of Cobb, California · 14110 days ago · 0 km deep · 1 km away
  3. 1.77 km ENE of Geyserville, California · 14109 days ago · 5 km deep · 11 km away
  4. 1.66 km W of Cobb, California · 14108 days ago · 2 km deep · 1 km away
  5. 2.66 km W of Cobb, California · 14108 days ago · 3 km deep · 1 km away
  6. 1.64 km WSW of Cobb, California · 14106 days ago · -1 km deep · 3 km away
  7. 2.75 km WSW of Cobb, California · 14106 days ago · 0 km deep · 3 km away
  8. 1.67 km WSW of Cobb, California · 14106 days ago · 1 km deep · 3 km away
  9. 1.79 km W of Cobb, California · 14106 days ago · 1 km deep · 3 km away
  10. 1.66 km SW of Cobb, California · 14106 days ago · 3 km deep · 5 km away
  11. 2.59 km W of Cobb, California · 14105 days ago · 0 km deep · 3 km away
  12. 1.68 km E of Potter Valley, California · 14105 days ago · 0 km deep · 57 km away
  13. 1.65 km WSW of Cobb, California · 14105 days ago · 2 km deep · 3 km away
  14. 2.18 km E of Potter Valley, California · 14105 days ago · 4 km deep · 57 km away
  15. 1.9Northern California · 14104 days ago · 3 km deep · 2 km away
  16. 2.68 km W of Cobb, California · 14104 days ago · 1 km deep · 2 km away
  17. 3.18 km W of Cobb, California · 14104 days ago · 1 km deep · 2 km away
  18. 1.98 km W of Cobb, California · 14104 days ago · 1 km deep · 2 km away
  19. 1.68 km W of Cobb, California · 14104 days ago · 2 km deep · 2 km away
  20. 2.68 km W of Cobb, California · 14104 days ago · 1 km deep · 2 km away
  21. 1.88 km W of Cobb, California · 14104 days ago · 0 km deep · 2 km away
  22. 2.29 km W of Cobb, California · 14104 days ago · 1 km deep · 3 km away
  23. 1.75 km E of Hopland, California · 14104 days ago · 1 km deep · 28 km away
  24. 2.15 km SSW of Cobb, California · 14103 days ago · 1 km deep · 7 km away
  25. 1.93 km SSW of Cobb, California · 14103 days ago · 1 km deep · 6 km away
  26. 1.9Northern California · 14102 days ago · 4 km deep · 2 km away
  27. 1.69 km NE of Cloverdale, California · 14101 days ago · 3 km deep · 14 km away
  28. 1.917 km NE of Potter Valley, California · 14101 days ago · 6 km deep · 66 km away
  29. 1.95 km W of Cobb, California · 14100 days ago · 0 km deep · 1 km away
  30. 1.922 km NNE of Potter Valley, California · 14100 days ago · 3 km deep · 78 km away
  31. 1.823 km NNE of Potter Valley, California · 14100 days ago · 4 km deep · 78 km away
  32. 1.59 km SSW of Lakeport, California · 14100 days ago · 1 km deep · 20 km away
  33. 1.67 km S of Cobb, California · 14100 days ago · 2 km deep · 12 km away
  34. 1.77 km WSW of Cobb, California · 14100 days ago · 0 km deep · 3 km away
  35. 1.86 km W of Cobb, California · 14100 days ago · 3 km deep · 2 km away
  36. 2.16 km W of Cobb, California · 14100 days ago · 3 km deep · 1 km away
  37. 2.07 km WSW of Cobb, California · 14099 days ago · 3 km deep · 3 km away
  38. 2.021 km ENE of Potter Valley, California · 14099 days ago · 4 km deep · 67 km away
  39. 1.66 km ENE of Boonville, California · 14099 days ago · 1 km deep · 48 km away
  40. 1.56 km E of Boonville, California · 14099 days ago · 5 km deep · 48 km away
  41. 2.17 km WSW of Cobb, California · 14099 days ago · 2 km deep · 3 km away
  42. 1.66 km SW of Cobb, California · 14099 days ago · 1 km deep · 7 km away
  43. 1.66 km WSW of Cobb, California · 14099 days ago · 4 km deep · 3 km away
  44. 1.64 km WSW of Cobb, California · 14099 days ago · -1 km deep · 3 km away
  45. 1.56 km SW of Cobb, California · 14098 days ago · 1 km deep · 5 km away
  46. 2.34 km SW of Cobb, California · 14098 days ago · 1 km deep · 5 km away
  47. 2.18 km NE of Windsor, California · 14096 days ago · 2 km deep · 27 km away
  48. 1.66 km WNW of Cobb, California · 14095 days ago · -1 km deep · 1 km away
  49. 2.425 km SE of Covelo, California · 14095 days ago · 5 km deep · 90 km away
  50. 1.925 km SE of Covelo, California · 14095 days ago · 4 km deep · 89 km away
  51. 1.87 km WSW of Cobb, California · 14095 days ago · 2 km deep · 3 km away
  52. 1.56 km W of Cobb, California · 14095 days ago · 3 km deep · 1 km away
  53. 2.37 km W of Cobb, California · 14095 days ago · -1 km deep · 1 km away
  54. 1.66 km W of Cobb, California · 14094 days ago · 3 km deep · 1 km away
  55. 1.96 km WSW of Cobb, California · 14093 days ago · 1 km deep · 3 km away
  56. 1.76 km WNW of Cobb, California · 14093 days ago · 1 km deep · 1 km away
  57. 1.67 km WSW of Cobb, California · 14092 days ago · 3 km deep · 3 km away
  58. 3.47 km W of Cobb, California · 14092 days ago · 1 km deep · 1 km away
  59. 2.37 km W of Cobb, California · 14092 days ago · -1 km deep · 1 km away
  60. 2.67 km W of Cobb, California · 14092 days ago · 1 km deep · 1 km away

The first 60 of 166.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc111664. Read Tue, Sep 22, 2026, 10:34 PM UTC.