California earthquakes

M1.7 earthquake 5 km NNE of Windsor, California

A magnitude 1.7 earthquake struck 5 km NNE of Windsor, California on Fri, Dec 14, 1984, 5:06 AM PST (13:06 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M3.5 6 km W of Cobb, California. This one was a foreshock.

Windsor 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
1.7 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1984-12-14 13:06:57 UTC
Depth
2.1 km (1.3 mi), shallow
Epicenter
38.595° N, 122.803° 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, 2.3 km in depth
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
99°
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: 191 in the 60 days after this one and 104 in the 30 days before it.

After

  1. 1.74 km WSW of Cobb, California · 15266 days ago · 1 km deep · 23 km away
  2. 2.16 km W of Cobb, California · 15266 days ago · 3 km deep · 25 km away
  3. 2.13 km SW of Cobb, California · 15265 days ago · 1 km deep · 23 km away
  4. 1.65 km WSW of Cobb, California · 15265 days ago · 1 km deep · 23 km away
  5. 1.93 km SW of Cobb, California · 15265 days ago · 1 km deep · 23 km away
  6. 1.58 km W of Cobb, California · 15264 days ago · 0 km deep · 25 km away
  7. 2.14 km W of Cobb, California · 15264 days ago · 0 km deep · 25 km away
  8. 1.84 km W of Cobb, California · 15264 days ago · 1 km deep · 25 km away
  9. 2.05 km SW of Cobb, California · 15264 days ago · 1 km deep · 22 km away
  10. 1.89 km W of Cobb, California · 15263 days ago · 1 km deep · 25 km away
  11. 2.1Northern California · 15263 days ago · 2 km deep · 24 km away
  12. 2.17 km WSW of Cobb, California · 15263 days ago · 1 km deep · 23 km away
  13. 1.97 km WSW of Cobb, California · 15262 days ago · 1 km deep · 23 km away
  14. 1.67 km W of Calistoga, California · 15262 days ago · 2 km deep · 12 km away
  15. 1.77 km SSE of Kelseyville, California · 15262 days ago · 6 km deep · 35 km away
  16. 1.87 km W of Cobb, California · 15262 days ago · 0 km deep · 25 km away
  17. 2.24 km WSW of Cobb, California · 15262 days ago · 1 km deep · 23 km away
  18. 1.99 km W of Hopland, California · 15262 days ago · 4 km deep · 56 km away
  19. 3.05 km SW of Cobb, California · 15262 days ago · 1 km deep · 22 km away
  20. 2.014km E of Angwin, CA · 15262 days ago · 11 km deep · 45 km away
  21. 2.18 km W of Cobb, California · 15261 days ago · 1 km deep · 25 km away
  22. 3.08 km W of Cobb, California · 15261 days ago · 1 km deep · 25 km away
  23. 1.58 km W of Cobb, California · 15261 days ago · 1 km deep · 25 km away
  24. 1.88 km W of Cobb, California · 15261 days ago · 1 km deep · 25 km away
  25. 1.58 km W of Cobb, California · 15261 days ago · 1 km deep · 26 km away
  26. 2.17 km W of Cobb, California · 15261 days ago · 0 km deep · 26 km away
  27. 1.616 km WSW of Cloverdale, California · 15260 days ago · 9 km deep · 38 km away
  28. 2.05 km N of Sea Ranch, California · 15260 days ago · 22 km deep · 59 km away
  29. 1.74 km W of Glen Ellen, California · 15260 days ago · 9 km deep · 32 km away
  30. 2.55 km WSW of Cobb, California · 15260 days ago · 1 km deep · 24 km away
  31. 1.67 km W of Cobb, California · 15259 days ago · 1 km deep · 26 km away
  32. 1.817 km ENE of Potter Valley, California · 15259 days ago · 7 km deep · 90 km away
  33. 1.65 km W of Cobb, California · 15259 days ago · 1 km deep · 25 km away
  34. 1.98 km W of Cobb, California · 15259 days ago · 1 km deep · 26 km away
  35. 3.45 km SW of Cobb, California · 15258 days ago · 0 km deep · 22 km away
  36. 3.05 km SW of Cobb, California · 15258 days ago · 0 km deep · 21 km away
  37. 1.55 km SW of Cobb, California · 15258 days ago · 1 km deep · 21 km away
  38. 1.85 km SW of Cobb, California · 15258 days ago · 0 km deep · 22 km away
  39. 2.7Northern California · 15258 days ago · 0 km deep · 23 km away
  40. 1.8Northern California · 15258 days ago · 1 km deep · 21 km away
  41. 1.56 km SW of Cobb, California · 15258 days ago · 0 km deep · 21 km away
  42. 2.111 km NE of Talmage, California · 15258 days ago · 7 km deep · 71 km away
  43. 1.67 km WSW of Cobb, California · 15258 days ago · 1 km deep · 23 km away
  44. 1.53 km WSW of Calistoga, California · 15258 days ago · 4 km deep · 17 km away
  45. 1.55 km WSW of Cobb, California · 15258 days ago · 0 km deep · 23 km away
  46. 2.26 km W of Cobb, California · 15258 days ago · 3 km deep · 25 km away
  47. 2.56 km W of Cobb, California · 15257 days ago · 4 km deep · 25 km away
  48. 1.56 km W of Cobb, California · 15257 days ago · 3 km deep · 25 km away
  49. 1.87 km W of Cobb, California · 15257 days ago · 3 km deep · 25 km away
  50. 1.68 km W of Cobb, California · 15256 days ago · 0 km deep · 25 km away
  51. 1.67 km W of Cobb, California · 15256 days ago · 1 km deep · 26 km away
  52. 1.53 km SW of Cobb, California · 15256 days ago · 12 km deep · 22 km away
  53. 1.56 km ESE of Hopland, California · 15256 days ago · 5 km deep · 45 km away
  54. 1.95 km W of Cobb, California · 15255 days ago · 0 km deep · 25 km away
  55. 1.87 km WSW of Cobb, California · 15255 days ago · 0 km deep · 24 km away
  56. 1.93 km NE of Point Arena, California · 15255 days ago · -1 km deep · 83 km away
  57. 2.05 km WNW of Cobb, California · 15254 days ago · 1 km deep · 26 km away
  58. 1.86 km W of Cobb, California · 15254 days ago · 3 km deep · 26 km away
  59. 1.54 km WSW of Cobb, California · 15254 days ago · 1 km deep · 23 km away
  60. 1.96 km WSW of Cobb, California · 15253 days ago · 3 km deep · 23 km away

The first 60 of 191.

Before

  1. 1.57 km W of Cobb, California · 15267 days ago · 0 km deep · 25 km away
  2. 2.07 km W of Cobb, California · 15267 days ago · 1 km deep · 24 km away
  3. 1.65 km SW of Cobb, California · 15269 days ago · 1 km deep · 22 km away
  4. 2.312 km S of Comptche, California · 15269 days ago · -1 km deep · 92 km away
  5. 2.112 km S of Comptche, California · 15269 days ago · -1 km deep · 92 km away
  6. 1.68 km ENE of Clearlake, California · 15269 days ago · 1 km deep · 49 km away
  7. 1.88 km W of Cobb, California · 15269 days ago · 0 km deep · 25 km away
  8. 1.65 km WSW of Cobb, California · 15270 days ago · 1 km deep · 22 km away
  9. 2.38 km W of Cobb, California · 15270 days ago · 0 km deep · 24 km away
  10. 1.58 km W of Cobb, California · 15270 days ago · -1 km deep · 26 km away
  11. 2.18 km W of Cobb, California · 15270 days ago · 0 km deep · 25 km away
  12. 2.38 km W of Cobb, California · 15270 days ago · 1 km deep · 25 km away
  13. 2.35 km WSW of Cobb, California · 15271 days ago · 1 km deep · 24 km away
  14. 1.93 km SW of Green Valley, California · 15271 days ago · 6 km deep · 66 km away
  15. 1.57 km WSW of Cobb, California · 15271 days ago · 1 km deep · 23 km away
  16. 1.66 km WSW of Cobb, California · 15272 days ago · 3 km deep · 24 km away
  17. 1.87 km W of Cobb, California · 15272 days ago · 3 km deep · 24 km away
  18. 1.95 km SW of Cobb, California · 15273 days ago · 1 km deep · 22 km away
  19. 1.86 km WSW of Cobb, California · 15273 days ago · 4 km deep · 23 km away
  20. 1.57 km WSW of Cobb, California · 15273 days ago · 3 km deep · 22 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1124040. Read Thu, Oct 1, 2026, 11:48 PM UTC.