California earthquakes

M1.5 earthquake 5 km N of Windsor, California

A magnitude 1.5 earthquake struck 5 km N of Windsor, California on Tue, May 22, 1984, 2:47 PM PDT (21:47 UTC), 7 km (5 mi) below the surface.

A larger quake followed: M3.2 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
1.5 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1984-05-22 21:47:53 UTC
Depth
7.3 km (4.5 mi), shallow
Epicenter
38.596° N, 122.808° 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 0.4 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
81°
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: 168 in the 60 days after this one and 88 in the 30 days before it.

After

  1. 2.47 km WSW of Cobb, California · 15473 days ago · -1 km deep · 23 km away
  2. 2.37 km W of Cobb, California · 15472 days ago · 2 km deep · 24 km away
  3. 2.014 km N of Pittsburg, California · 15472 days ago · 21 km deep · 95 km away
  4. 2.07 km W of Cobb, California · 15472 days ago · 1 km deep · 26 km away
  5. 1.56 km WSW of Cobb, California · 15471 days ago · 1 km deep · 24 km away
  6. 1.8Northern California · 15471 days ago · 3 km deep · 23 km away
  7. 1.98 km WSW of Cobb, California · 15471 days ago · 3 km deep · 23 km away
  8. 2.38 km WSW of Cobb, California · 15471 days ago · 2 km deep · 22 km away
  9. 1.77 km W of Cobb, California · 15471 days ago · 3 km deep · 24 km away
  10. 1.66 km NE of Lower Lake, California · 15470 days ago · 1 km deep · 45 km away
  11. 1.67 km SSW of Willits, California · 15470 days ago · 1 km deep · 98 km away
  12. 2.621 km NE of Potter Valley, California · 15470 days ago · 5 km deep · 97 km away
  13. 1.88 km E of Lower Lake, California · 15469 days ago · 3 km deep · 44 km away
  14. 1.56 km W of Cobb, California · 15469 days ago · 0 km deep · 26 km away
  15. 2.56 km W of Cobb, California · 15469 days ago · 0 km deep · 26 km away
  16. 1.77 km W of Cobb, California · 15469 days ago · 0 km deep · 26 km away
  17. 1.65 km WSW of Cobb, California · 15469 days ago · 1 km deep · 23 km away
  18. 1.616 km ENE of Potter Valley, California · 15469 days ago · 7 km deep · 90 km away
  19. 1.92 km WSW of Cobb, California · 15468 days ago · -1 km deep · 25 km away
  20. 1.73 km SW of Cobb, California · 15468 days ago · 1 km deep · 23 km away
  21. 1.57 km W of Potter Valley, California · 15468 days ago · 8 km deep · 89 km away
  22. 1.76 km W of Cobb, California · 15468 days ago · 3 km deep · 25 km away
  23. 1.68 km W of Cobb, California · 15468 days ago · -1 km deep · 24 km away
  24. 2.28 km SW of Cobb, California · 15468 days ago · -1 km deep · 20 km away
  25. 3.08 km W of Cobb, California · 15467 days ago · -1 km deep · 26 km away
  26. 2.67 km WSW of Cobb, California · 15467 days ago · 3 km deep · 23 km away
  27. 3.17 km WSW of Cobb, California · 15467 days ago · 1 km deep · 23 km away
  28. 1.77 km WSW of Cobb, California · 15467 days ago · 4 km deep · 22 km away
  29. 2.15 km SW of Cobb, California · 15466 days ago · 1 km deep · 22 km away
  30. 1.521 km NE of Potter Valley, California · 15465 days ago · 4 km deep · 99 km away
  31. 1.517 km NE of Potter Valley, California · 15465 days ago · 3 km deep · 95 km away
  32. 1.83 km W of Cobb, California · 15465 days ago · -1 km deep · 25 km away
  33. 1.65 km SW of Moskowite Corner, California · 15465 days ago · 11 km deep · 54 km away
  34. 1.86 km W of Cobb, California · 15465 days ago · 2 km deep · 25 km away
  35. 1.85 km W of Cobb, California · 15464 days ago · 1 km deep · 25 km away
  36. 1.66 km W of Cobb, California · 15464 days ago · 3 km deep · 25 km away
  37. 1.65 km W of Cobb, California · 15464 days ago · 0 km deep · 26 km away
  38. 1.55 km W of Cobb, California · 15464 days ago · 0 km deep · 26 km away
  39. 1.8Northern California · 15464 days ago · 1 km deep · 26 km away
  40. 1.96 km E of Hidden Valley Lake, California · 15463 days ago · 7 km deep · 37 km away
  41. 1.85 km WSW of Cobb, California · 15463 days ago · 1 km deep · 23 km away
  42. 1.66 km W of Cobb, California · 15463 days ago · 3 km deep · 25 km away
  43. 1.84 km WSW of Cobb, California · 15463 days ago · 1 km deep · 24 km away
  44. 1.77 km W of Cobb, California · 15463 days ago · 3 km deep · 24 km away
  45. 1.619 km ENE of Clearlake, California · 15462 days ago · 5 km deep · 59 km away
  46. 1.92 km SSW of Dixon, California · 15462 days ago · 23 km deep · 87 km away
  47. 2.713 km N of Upper Lake, California · 15462 days ago · 0 km deep · 77 km away
  48. 1.66 km W of Cobb, California · 15462 days ago · 3 km deep · 25 km away
  49. 3.08 km SSW of Suisun, California · 15461 days ago · 5 km deep · 80 km away
  50. 2.29 km SSW of Suisun, California · 15461 days ago · 5 km deep · 79 km away
  51. 1.67 km WSW of Cobb, California · 15461 days ago · 2 km deep · 22 km away
  52. 2.33 km WNW of Soda Bay, California · 15461 days ago · 5 km deep · 47 km away
  53. 1.84 km NW of Soda Bay, California · 15461 days ago · 5 km deep · 47 km away
  54. 1.57 km W of Cobb, California · 15458 days ago · 3 km deep · 25 km away
  55. 1.63 km WNW of Cobb, California · 15457 days ago · -1 km deep · 26 km away
  56. 1.65 km WSW of Cobb, California · 15457 days ago · 1 km deep · 24 km away
  57. 1.511 km SSW of Kelseyville, California · 15457 days ago · 19 km deep · 32 km away
  58. 1.93 km WNW of Clearlake Oaks, California · 15456 days ago · 19 km deep · 50 km away
  59. 2.06 km W of Cobb, California · 15456 days ago · 3 km deep · 25 km away
  60. 1.87 km W of Cobb, California · 15456 days ago · 1 km deep · 25 km away

The first 60 of 168.

Before

  1. 2.44 km NNW of Lafayette, California · 15473 days ago · 15 km deep · 95 km away
  2. 2.112 km S of Comptche, California · 15473 days ago · 0 km deep · 92 km away
  3. 1.712 km S of Comptche, California · 15473 days ago · 3 km deep · 93 km away
  4. 2.47 km WSW of Cobb, California · 15474 days ago · 1 km deep · 23 km away
  5. 1.75 km ESE of Healdsburg, California · 15474 days ago · 4 km deep · 0 km away
  6. 1.57 km WSW of Cobb, California · 15474 days ago · 3 km deep · 22 km away
  7. 1.67 km WSW of Cobb, California · 15474 days ago · 4 km deep · 23 km away
  8. 2.16 km W of Cobb, California · 15474 days ago · 2 km deep · 24 km away
  9. 2.56 km W of Cobb, California · 15474 days ago · 2 km deep · 24 km away
  10. 1.87 km S of Calistoga, California · 15475 days ago · 1 km deep · 22 km away
  11. 1.6Northern California · 15475 days ago · 0 km deep · 19 km away
  12. 1.96 km W of Cobb, California · 15476 days ago · 3 km deep · 25 km away
  13. 3.05 km SW of Cobb, California · 15476 days ago · 0 km deep · 21 km away
  14. 1.8Northern California · 15477 days ago · 4 km deep · 37 km away
  15. 1.77 km WSW of Cobb, California · 15477 days ago · 0 km deep · 23 km away
  16. 1.67 km E of Hidden Valley Lake, California · 15477 days ago · 7 km deep · 39 km away
  17. 1.93 km SE of Calpella, California · 15477 days ago · 5 km deep · 76 km away
  18. 2.37 km WSW of Cobb, California · 15478 days ago · 0 km deep · 23 km away
  19. 1.96 km W of Cobb, California · 15478 days ago · 3 km deep · 24 km away
  20. 1.67 km WSW of Cobb, California · 15478 days ago · 2 km deep · 24 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc19187. Read Fri, Oct 2, 2026, 5:36 PM UTC.