California earthquakes

M1.6 earthquake 5 km SW of Cobb, California

A magnitude 1.6 earthquake struck 5 km SW of Cobb, California on Mon, Feb 25, 1991, 9:29 PM PST (05:29 UTC), -1 km (0 mi) below the surface.

A larger quake followed: M3.3 7 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
1991-02-26 05:29:01 UTC
Depth
-0.6 km (-0.4 mi), shallow
Epicenter
38.791° N, 122.767° 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, 0.6 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
72°
Stations used
14

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 168 in the 60 days after this one and 97 in the 30 days before it.

After

  1. 1.54 km NNE of Kenwood, California · 13005 days ago · 7 km deep · 43 km away
  2. 2.14 km W of Cobb, California · 13004 days ago · 2 km deep · 3 km away
  3. 2.110 km W of Cobb, California · 13004 days ago · 0 km deep · 7 km away
  4. 1.76 km W of Cobb, California · 13003 days ago · 2 km deep · 5 km away
  5. 1.75 km SSW of Cobb, California · 13002 days ago · 2 km deep · 2 km away
  6. 2.38 km W of Cobb, California · 13002 days ago · 0 km deep · 6 km away
  7. 1.511 km S of Kelseyville, California · 13001 days ago · 1 km deep · 12 km away
  8. 1.85 km W of Cobb, California · 13001 days ago · 0 km deep · 3 km away
  9. 2.09 km W of Cobb, California · 13001 days ago · 0 km deep · 6 km away
  10. 1.76 km W of Cobb, California · 13001 days ago · -1 km deep · 5 km away
  11. 1.89 km W of Cobb, California · 13000 days ago · 1 km deep · 7 km away
  12. 1.68 km WNW of Cobb, California · 13000 days ago · -1 km deep · 7 km away
  13. 2.38 km W of Cobb, California · 12999 days ago · 2 km deep · 7 km away
  14. 2.21 km SSW of Redwood Valley, California · 12999 days ago · 6 km deep · 64 km away
  15. 2.02 km SSW of Cobb, California · 12998 days ago · 1 km deep · 3 km away
  16. 2.03 km WNW of Clearlake, California · 12998 days ago · 2 km deep · 22 km away
  17. 2.13 km WNW of Clearlake, California · 12998 days ago · 3 km deep · 22 km away
  18. 2.06 km ENE of Windsor, California · 12998 days ago · 2 km deep · 25 km away
  19. 1.66 km SW of Calistoga, California · 12998 days ago · 6 km deep · 30 km away
  20. 1.67 km NE of Rohnert Park, California · 12997 days ago · 6 km deep · 47 km away
  21. 1.74 km WSW of Cobb, California · 12997 days ago · 1 km deep · 2 km away
  22. 2.58 km W of Cobb, California · 12996 days ago · 0 km deep · 5 km away
  23. 1.75 km E of Rohnert Park, California · 12996 days ago · 4 km deep · 50 km away
  24. 1.813 km NNE of Angwin, California · 12996 days ago · 0 km deep · 34 km away
  25. 1.67 km WSW of Hopland, California · 12996 days ago · 5 km deep · 41 km away
  26. 2.99 km W of Cobb, California · 12996 days ago · 0 km deep · 7 km away
  27. 2.39 km W of Cobb, California · 12996 days ago · -1 km deep · 7 km away
  28. 1.810 km W of Cobb, California · 12996 days ago · -1 km deep · 7 km away
  29. 1.710 km NW of Cobb, California · 12995 days ago · 1 km deep · 11 km away
  30. 1.97 km ENE of Clearlake, California · 12995 days ago · 4 km deep · 29 km away
  31. 2.99 km W of Cobb, California · 12995 days ago · 1 km deep · 7 km away
  32. 1.74 km SW of Cobb, California · 12994 days ago · 0 km deep · 0 km away
  33. 1.74 km SW of Cobb, California · 12994 days ago · 0 km deep · 1 km away
  34. 1.94 km SW of Cobb, California · 12993 days ago · 0 km deep · 1 km away
  35. 1.73 km SW of Moskowite Corner, California · 12993 days ago · 7 km deep · 63 km away
  36. 1.77 km WSW of Cobb, California · 12993 days ago · 4 km deep · 4 km away
  37. 1.96 km W of Cobb, California · 12992 days ago · 2 km deep · 4 km away
  38. 1.64 km WSW of Cobb, California · 12992 days ago · 1 km deep · 2 km away
  39. 2.05 km E of Redwood Valley, California · 12992 days ago · 7 km deep · 62 km away
  40. 1.57 km E of Clearlake Oaks, California · 12992 days ago · 2 km deep · 30 km away
  41. 1.58 km W of Middletown, California · 12991 days ago · 2 km deep · 7 km away
  42. 1.76 km WSW of Calistoga, California · 12991 days ago · -1 km deep · 27 km away
  43. 1.76 km NW of Moskowite Corner, California · 12991 days ago · 1 km deep · 57 km away
  44. 2.15 km WSW of Cobb, California · 12990 days ago · 0 km deep · 1 km away
  45. 2.16 km NE of Santa Rosa, California · 12990 days ago · 1 km deep · 36 km away
  46. 2.64 km WSW of Cobb, California · 12990 days ago · 2 km deep · 1 km away
  47. 1.87 km W of Cobb, California · 12989 days ago · 0 km deep · 6 km away
  48. 1.814 km NNW of Moskowite Corner, California · 12989 days ago · 1 km deep · 50 km away
  49. 1.94 km W of Cobb, California · 12989 days ago · 1 km deep · 4 km away
  50. 2.913 km NW of Moskowite Corner, California · 12989 days ago · -1 km deep · 50 km away
  51. 2.013 km NW of Moskowite Corner, California · 12989 days ago · 1 km deep · 51 km away
  52. 1.55 km W of Cobb, California · 12988 days ago · 0 km deep · 3 km away
  53. 1.68 km W of Cobb, California · 12988 days ago · 1 km deep · 7 km away
  54. 1.516 km NE of Lucerne, California · 12988 days ago · 10 km deep · 48 km away
  55. 2.616 km NNE of Lucerne, California · 12988 days ago · 9 km deep · 48 km away
  56. 1.720 km NNE of Upper Lake, California · 12987 days ago · 4 km deep · 60 km away
  57. 1.95 km WSW of Cobb, California · 12987 days ago · 1 km deep · 3 km away
  58. 1.63 km NE of Clear Lake Riviera, California · 12986 days ago · -1 km deep · 22 km away
  59. 1.814 km E of Angwin, California · 12986 days ago · 0 km deep · 49 km away
  60. 1.59 km W of Cobb, California · 12986 days ago · 1 km deep · 7 km away

The first 60 of 168.

Before

  1. 2.08 km W of Cobb, California · 13005 days ago · 1 km deep · 6 km away
  2. 1.97 km S of Cobb, California · 13005 days ago · 1 km deep · 6 km away
  3. 1.98 km W of Cobb, California · 13006 days ago · 2 km deep · 6 km away
  4. 1.57 km WNW of Cobb, California · 13006 days ago · 0 km deep · 6 km away
  5. 2.08 km W of Cobb, California · 13006 days ago · 2 km deep · 6 km away
  6. 2.08 km W of Cobb, California · 13006 days ago · 1 km deep · 6 km away
  7. 3.08 km W of Cobb, California · 13006 days ago · 1 km deep · 6 km away
  8. 1.88 km W of Cobb, California · 13006 days ago · 0 km deep · 6 km away
  9. 1.68 km W of Cobb, California · 13006 days ago · 1 km deep · 7 km away
  10. 2.98 km W of Cobb, California · 13006 days ago · 1 km deep · 6 km away
  11. 2.46 km W of Cobb, California · 13006 days ago · 2 km deep · 4 km away
  12. 1.69 km W of Cobb, California · 13007 days ago · 0 km deep · 7 km away
  13. 1.77 km WNW of Cobb, California · 13007 days ago · 2 km deep · 6 km away
  14. 1.75 km W of Cobb, California · 13007 days ago · 2 km deep · 5 km away
  15. 1.910 km NNE of Hopland, California · 13008 days ago · 7 km deep · 38 km away
  16. 1.69 km W of Cobb, California · 13009 days ago · 2 km deep · 7 km away
  17. 1.610 km NNW of Princeton, California · 13009 days ago · 22 km deep · 98 km away
  18. 2.34 km SW of Cobb, California · 13009 days ago · 1 km deep · 1 km away
  19. 1.710 km W of Cobb, California · 13010 days ago · 0 km deep · 7 km away
  20. 1.96 km W of Cobb, California · 13012 days ago · 2 km deep · 4 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc207271. Read Mon, Oct 5, 2026, 3:11 AM UTC.