California earthquakes

M1.6 earthquake 7 km W of Cobb, California

A magnitude 1.6 earthquake struck 7 km W of Cobb, California on Wed, Feb 15, 1984, 1:26 AM PST (09:26 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.2 4 km N of Redwood Valley, 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
1984-02-15 09:26:14 UTC
Depth
2.7 km (1.7 mi), shallow
Epicenter
38.813° N, 122.806° 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, 0.4 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
86°
Stations used
13

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 114 in the 30 days before it.

After

  1. 1.77 km WSW of Cobb, California · 15572 days ago · 2 km deep · 1 km away
  2. 1.87 km W of Cobb, California · 15572 days ago · 3 km deep · 0 km away
  3. 3.05 km WSW of Cobb, California · 15572 days ago · 0 km deep · 2 km away
  4. 2.05 km WSW of Cobb, California · 15572 days ago · 1 km deep · 2 km away
  5. 1.55 km W of Cobb, California · 15572 days ago · 1 km deep · 2 km away
  6. 1.96 km W of Cobb, California · 15572 days ago · 3 km deep · 1 km away
  7. 1.56 km WSW of Cobb, California · 15572 days ago · 0 km deep · 1 km away
  8. 1.67 km WSW of Cobb, California · 15572 days ago · 1 km deep · 1 km away
  9. 1.75 km WSW of Glen Ellen, California · 15571 days ago · 0 km deep · 56 km away
  10. 2.4Northern California · 15571 days ago · 2 km deep · 1 km away
  11. 1.86 km W of Cobb, California · 15571 days ago · 3 km deep · 1 km away
  12. 1.63 km NW of Lakeport, California · 15570 days ago · 1 km deep · 30 km away
  13. 1.66 km WSW of Cobb, California · 15570 days ago · 0 km deep · 1 km away
  14. 1.66 km SSW of Cobb, California · 15569 days ago · 4 km deep · 7 km away
  15. 2.26 km S of Albion, California · 15569 days ago · 0 km deep · 92 km away
  16. 1.66 km W of Cobb, California · 15569 days ago · 3 km deep · 1 km away
  17. 1.74 km E of Saint Helena, California · 15569 days ago · 11 km deep · 47 km away
  18. 2.17 km W of Cobb, California · 15567 days ago · 3 km deep · 0 km away
  19. 1.76 km WSW of Cobb, California · 15566 days ago · 1 km deep · 1 km away
  20. 1.74 km NNE of Kenwood, California · 15566 days ago · 7 km deep · 47 km away
  21. 2.36 km W of Cobb, California · 15565 days ago · 2 km deep · 0 km away
  22. 1.97 km WSW of Cobb, California · 15564 days ago · 0 km deep · 1 km away
  23. 1.96 km WSW of Cobb, California · 15564 days ago · 3 km deep · 1 km away
  24. 2.66 km W of Cobb, California · 15563 days ago · 3 km deep · 1 km away
  25. 1.822 km N of Potter Valley, California · 15563 days ago · 0 km deep · 83 km away
  26. 1.58 km WSW of Cobb, California · 15563 days ago · 2 km deep · 2 km away
  27. 2.55 km SW of Cobb, California · 15562 days ago · 1 km deep · 4 km away
  28. 1.65 km SW of Cobb, California · 15562 days ago · 0 km deep · 4 km away
  29. 2.19 km WSW of Cobb, California · 15562 days ago · 1 km deep · 2 km away
  30. 2.39 km WSW of Cobb, California · 15562 days ago · 2 km deep · 2 km away
  31. 1.97 km W of Cobb, California · 15562 days ago · 3 km deep · 1 km away
  32. 2.26 km SSE of Willows, California · 15561 days ago · 22 km deep · 91 km away
  33. 2.37 km ESE of Willits, California · 15561 days ago · 3 km deep · 75 km away
  34. 1.56 km W of Cobb, California · 15561 days ago · 3 km deep · 1 km away
  35. 1.83 km E of Calpella, California · 15561 days ago · 2 km deep · 56 km away
  36. 1.86 km WSW of Cobb, California · 15561 days ago · 1 km deep · 1 km away
  37. 1.65 km WSW of Cobb, California · 15560 days ago · 1 km deep · 2 km away
  38. 1.78 km WSW of Cobb, California · 15560 days ago · 3 km deep · 1 km away
  39. 1.67 km W of Cobb, California · 15560 days ago · 3 km deep · 1 km away
  40. 2.77 km W of Cobb, California · 15559 days ago · 3 km deep · 1 km away
  41. 1.917 km ENE of Potter Valley, California · 15559 days ago · 7 km deep · 66 km away
  42. 1.75 km E of Brooktrails, California · 15559 days ago · 5 km deep · 84 km away
  43. 2.26 km W of Cobb, California · 15558 days ago · 3 km deep · 1 km away
  44. 2.16 km W of Cobb, California · 15558 days ago · 0 km deep · 1 km away
  45. 2.69 km WSW of Cobb, California · 15558 days ago · 2 km deep · 2 km away
  46. 2.19 km WSW of Cobb, California · 15558 days ago · 2 km deep · 2 km away
  47. 2.05 km SW of Cobb, California · 15557 days ago · 0 km deep · 3 km away
  48. 3.06 km WSW of Cobb, California · 15557 days ago · 3 km deep · 1 km away
  49. 2.07 km WSW of Cobb, California · 15557 days ago · 3 km deep · 2 km away
  50. 2.05 km SW of Cobb, California · 15557 days ago · 0 km deep · 4 km away
  51. 2.05 km SW of Cobb, California · 15557 days ago · 0 km deep · 4 km away
  52. 1.85 km SW of Cobb, California · 15557 days ago · 0 km deep · 4 km away
  53. 1.911 km N of Cazadero, California · 15556 days ago · 13 km deep · 31 km away
  54. 1.68 km WSW of Cobb, California · 15556 days ago · 3 km deep · 1 km away
  55. 1.74 km ESE of Santa Rosa, California · 15556 days ago · 9 km deep · 45 km away
  56. 1.95 km SW of Cobb, California · 15556 days ago · 1 km deep · 4 km away
  57. 1.74 km ESE of Santa Rosa, California · 15555 days ago · 7 km deep · 45 km away
  58. 1.85 km WSW of Cobb, California · 15555 days ago · 0 km deep · 2 km away
  59. 1.66 km WSW of Cobb, California · 15555 days ago · 0 km deep · 1 km away
  60. 1.510 km WSW of Cobb, California · 15555 days ago · 12 km deep · 3 km away

The first 60 of 168.

Before

  1. 2.77 km WSW of Cobb, California · 15573 days ago · 3 km deep · 2 km away
  2. 1.66 km W of Cobb, California · 15573 days ago · 3 km deep · 1 km away
  3. 1.67 km W of Cobb, California · 15573 days ago · 2 km deep · 0 km away
  4. 1.84 km WSW of Cobb, California · 15574 days ago · 1 km deep · 3 km away
  5. 2.59 km N of Angwin, California · 15574 days ago · 9 km deep · 35 km away
  6. 1.96 km W of Cobb, California · 15574 days ago · 3 km deep · 1 km away
  7. 1.66 km W of Cobb, California · 15574 days ago · 3 km deep · 1 km away
  8. 1.79 km WNW of Calistoga, California · 15575 days ago · 2 km deep · 26 km away
  9. 2.55 km WSW of Cobb, California · 15575 days ago · 0 km deep · 3 km away
  10. 1.613 km NNW of Moskowite Corner, California · 15575 days ago · 1 km deep · 56 km away
  11. 1.65 km WSW of Cobb, California · 15575 days ago · 0 km deep · 3 km away
  12. 2.514 km NNW of Moskowite Corner, California · 15575 days ago · 5 km deep · 54 km away
  13. 1.65 km NNE of Geyserville, California · 15575 days ago · -1 km deep · 9 km away
  14. 2.15 km NNW of Moskowite Corner, California · 15575 days ago · 15 km deep · 64 km away
  15. 1.77 km W of Cobb, California · 15575 days ago · 3 km deep · 1 km away
  16. 1.87 km S of Clear Lake Riviera, California · 15576 days ago · 1 km deep · 11 km away
  17. 1.921 km N of Potter Valley, California · 15576 days ago · 0 km deep · 82 km away
  18. 1.54 km WNW of Potter Valley, California · 15577 days ago · 9 km deep · 66 km away
  19. 1.76 km WSW of Cobb, California · 15577 days ago · 1 km deep · 1 km away
  20. 2.66 km E of Willits, California · 15577 days ago · -1 km deep · 79 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc6277. Read Sun, Oct 4, 2026, 11:56 PM UTC.