California earthquakes

M1.9 earthquake 5 km W of Cobb, California

A magnitude 1.9 earthquake struck 5 km W of Cobb, California on Mon, Jan 18, 1988, 12:52 PM PST (20:52 UTC), 1 km (0 mi) below the surface.

A larger quake followed: M2.8 Northern 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
1988-01-18 20:52:24 UTC
Depth
0.6 km (0.4 mi), shallow
Epicenter
38.827° N, 122.788° 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 0.3 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.35
Depth from
From location
Station coverage gap
107°
Stations used
8

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. 2.8Northern California · 14126 days ago · 1 km deep · 4 km away
  2. 1.64 km SW of Cobb, California · 14126 days ago · 0 km deep · 4 km away
  3. 1.96 km W of Cobb, California · 14125 days ago · 0 km deep · 1 km away
  4. 1.68 km WNW of Cobb, California · 14124 days ago · 0 km deep · 4 km away
  5. 1.616 km SW of Cloverdale, California · 14124 days ago · 9 km deep · 35 km away
  6. 2.09 km E of Hidden Valley Lake, California · 14123 days ago · 6 km deep · 29 km away
  7. 1.811 km WNW of Redwood Valley, California · 14123 days ago · 6 km deep · 71 km away
  8. 2.6Northern California · 14122 days ago · 0 km deep · 5 km away
  9. 1.94 km SW of Napa, California · 14122 days ago · 4 km deep · 74 km away
  10. 2.06 km W of Cobb, California · 14122 days ago · 2 km deep · 0 km away
  11. 2.56 km W of Cobb, California · 14122 days ago · 1 km deep · 1 km away
  12. 2.09 km E of Hidden Valley Lake, California · 14122 days ago · 7 km deep · 29 km away
  13. 1.67 km W of Cobb, California · 14122 days ago · -1 km deep · 2 km away
  14. 2.16 km WSW of Cobb, California · 14121 days ago · 3 km deep · 2 km away
  15. 1.69 km E of Hidden Valley Lake, California · 14121 days ago · 5 km deep · 29 km away
  16. 1.67 km WSW of Cobb, California · 14120 days ago · 1 km deep · 2 km away
  17. 1.85 km WSW of Cobb, California · 14120 days ago · 1 km deep · 2 km away
  18. 3.06 km WSW of Cobb, California · 14119 days ago · 1 km deep · 2 km away
  19. 1.67 km WSW of Cobb, California · 14119 days ago · -1 km deep · 4 km away
  20. 1.54 km WSW of Cobb, California · 14119 days ago · 2 km deep · 3 km away
  21. 1.82 km NW of Calpella, California · 14119 days ago · 6 km deep · 60 km away
  22. 2.14 km WSW of Cobb, California · 14119 days ago · 0 km deep · 3 km away
  23. 2.07 km W of Cobb, California · 14118 days ago · 3 km deep · 2 km away
  24. 1.824 km NE of Potter Valley, California · 14117 days ago · 9 km deep · 77 km away
  25. 1.65 km SSW of Cobb, California · 14117 days ago · -1 km deep · 6 km away
  26. 1.67 km W of Cobb, California · 14117 days ago · 3 km deep · 2 km away
  27. 1.812 km E of Angwin, California · 14116 days ago · 0 km deep · 49 km away
  28. 2.77 km WSW of Cobb, California · 14115 days ago · 1 km deep · 3 km away
  29. 1.78 km SW of Cobb, California · 14115 days ago · -1 km deep · 6 km away
  30. 1.96 km W of Cobb, California · 14115 days ago · 3 km deep · 1 km away
  31. 1.96 km W of Cobb, California · 14115 days ago · 1 km deep · 1 km away
  32. 1.97 km W of Cobb, California · 14115 days ago · 4 km deep · 2 km away
  33. 2.48 km W of Cobb, California · 14115 days ago · -1 km deep · 3 km away
  34. 2.14 km SW of Hopland, California · 14113 days ago · 4 km deep · 34 km away
  35. 1.512 km SSW of Kelseyville, California · 14113 days ago · 4 km deep · 12 km away
  36. 1.94 km W of Cobb, California · 14113 days ago · 1 km deep · 2 km away
  37. 1.74 km WSW of Cobb, California · 14113 days ago · 1 km deep · 2 km away
  38. 1.95 km SSE of Calpella, California · 14111 days ago · 1 km deep · 52 km away
  39. 1.67 km WSW of Cobb, California · 14111 days ago · 0 km deep · 3 km away
  40. 1.78 km W of Cobb, California · 14111 days ago · 0 km deep · 3 km away
  41. 2.010 km ESE of Hopland, California · 14111 days ago · 5 km deep · 23 km away
  42. 2.17 km W of Cobb, California · 14110 days ago · -1 km deep · 2 km away
  43. 1.56 km ENE of Boonville, California · 14110 days ago · 0 km deep · 49 km away
  44. 2.16 km W of Cobb, California · 14110 days ago · 3 km deep · 1 km away
  45. 1.78 km W of Cobb, California · 14109 days ago · 0 km deep · 2 km away
  46. 1.77 km ENE of Geyserville, California · 14109 days ago · 5 km deep · 11 km away
  47. 1.66 km W of Cobb, California · 14108 days ago · 2 km deep · 1 km away
  48. 2.66 km W of Cobb, California · 14108 days ago · 3 km deep · 1 km away
  49. 1.64 km WSW of Cobb, California · 14106 days ago · -1 km deep · 2 km away
  50. 2.75 km WSW of Cobb, California · 14106 days ago · 0 km deep · 3 km away
  51. 1.67 km WSW of Cobb, California · 14106 days ago · 1 km deep · 3 km away
  52. 1.79 km W of Cobb, California · 14106 days ago · 1 km deep · 4 km away
  53. 1.66 km SW of Cobb, California · 14106 days ago · 3 km deep · 5 km away
  54. 2.59 km W of Cobb, California · 14105 days ago · 0 km deep · 4 km away
  55. 1.68 km E of Potter Valley, California · 14105 days ago · 0 km deep · 57 km away
  56. 1.65 km WSW of Cobb, California · 14105 days ago · 2 km deep · 2 km away
  57. 2.18 km E of Potter Valley, California · 14105 days ago · 4 km deep · 57 km away
  58. 1.9Northern California · 14104 days ago · 3 km deep · 2 km away
  59. 2.68 km W of Cobb, California · 14104 days ago · 1 km deep · 3 km away
  60. 3.18 km W of Cobb, California · 14104 days ago · 1 km deep · 3 km away

The first 60 of 166.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc111165. Read Tue, Sep 22, 2026, 9:43 PM UTC.