California earthquakes

M1.5 earthquake 14km E of Boonville, CA

A magnitude 1.5 earthquake struck 14km E of Boonville, CA on Thu, Dec 9, 2021, 2:08 AM PST (10:08 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M3.4 1km NE of The Geysers, CA. This one was a foreshock.

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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
2021-12-09 10:08:03 UTC
Depth
6.6 km (4.1 mi), shallow
Epicenter
39.007° N, 123.204° 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, 0.5 km in depth
Magnitude uncertainty
±0.26
Depth from
From location
Station coverage gap
47°
Stations used
22

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 70 in the 30 days before it.

After

  1. 2.04km WNW of The Geysers, CA · 1759 days ago · 1 km deep · 43 km away
  2. 1.72km W of Anderson Springs, CA · 1759 days ago · 2 km deep · 50 km away
  3. 1.59km WNW of Cobb, CA · 1759 days ago · 2 km deep · 38 km away
  4. 2.57km SW of Calistoga, CA · 1759 days ago · 7 km deep · 72 km away · felt by 30
  5. 1.712km N of Brooktrails, CA · 1758 days ago · 7 km deep · 63 km away
  6. 2.212km N of Brooktrails, CA · 1758 days ago · 8 km deep · 62 km away
  7. 2.18km SW of Calistoga, CA · 1758 days ago · 8 km deep · 72 km away
  8. 1.62km NW of The Geysers, CA · 1758 days ago · 3 km deep · 44 km away
  9. 1.74km NNW of Larkfield-Wikiup, CA · 1758 days ago · 9 km deep · 64 km away
  10. 1.97km W of Cobb, CA · 1758 days ago · 2 km deep · 39 km away
  11. 1.67km W of Cobb, CA · 1758 days ago · 2 km deep · 39 km away
  12. 1.95km NNE of Fort Bragg, CA · 1757 days ago · 8 km deep · 73 km away · felt by 3
  13. 1.63km NW of The Geysers, CA · 1756 days ago · 1 km deep · 43 km away
  14. 1.74km W of Cobb, CA · 1756 days ago · 2 km deep · 43 km away
  15. 1.510km NW of The Geysers, CA · 1756 days ago · 2 km deep · 36 km away
  16. 1.97km WSW of The Geysers, CA · 1756 days ago · 4 km deep · 44 km away
  17. 1.71km NE of The Geysers, CA · 1755 days ago · 2 km deep · 47 km away
  18. 1.55km NNE of Clearlake, CA · 1755 days ago · 5 km deep · 52 km away
  19. 1.55km NW of The Geysers, CA · 1755 days ago · 3 km deep · 41 km away
  20. 1.87km WNW of Cobb, CA · 1754 days ago · 2 km deep · 40 km away
  21. 2.68km WNW of Cobb, CA · 1754 days ago · 2 km deep · 39 km away · felt by 2
  22. 1.63km E of The Geysers, CA · 1754 days ago · 1 km deep · 48 km away
  23. 2.020km ESE of Navarro Head, CA · 1754 days ago · 3 km deep · 34 km away
  24. 1.73km W of Anderson Springs, CA · 1754 days ago · 1 km deep · 49 km away
  25. 1.516km E of Mendocino, CA · 1752 days ago · 8 km deep · 51 km away
  26. 2.05km W of Cobb, CA · 1751 days ago · 2 km deep · 41 km away
  27. 2.00km NE of The Geysers, CA · 1751 days ago · 1 km deep · 46 km away
  28. 1.57km W of Cobb, CA · 1751 days ago · 1 km deep · 40 km away
  29. 1.66km ESE of Redwood Valley, CA · 1751 days ago · 2 km deep · 28 km away
  30. 2.18km W of Cobb, CA · 1751 days ago · 3 km deep · 39 km away
  31. 1.61km NW of The Geysers, CA · 1751 days ago · 2 km deep · 45 km away
  32. 2.210km ESE of Willits, CA · 1750 days ago · 7 km deep · 41 km away · felt by 1
  33. 1.88km NW of The Geysers, CA · 1748 days ago · 2 km deep · 39 km away
  34. 1.51km NNW of The Geysers, CA · 1748 days ago · 1 km deep · 45 km away
  35. 3.13km E of Covelo, CA · 1747 days ago · -1 km deep · 88 km away · felt by 11
  36. 1.59km S of Boonville, CA · 1747 days ago · 0 km deep · 17 km away · felt by 1
  37. 2.14km E of Redwood Valley, CA · 1747 days ago · 3 km deep · 29 km away · felt by 1
  38. 1.74km E of Redwood Valley, CA · 1747 days ago · 4 km deep · 30 km away
  39. 1.720km ESE of Navarro Head, CA · 1746 days ago · 3 km deep · 34 km away
  40. 1.61km NW of The Geysers, CA · 1746 days ago · 2 km deep · 45 km away
  41. 1.71km N of The Geysers, CA · 1746 days ago · 3 km deep · 46 km away
  42. 2.513km SE of Talmage, CA · 1746 days ago · 3 km deep · 11 km away · felt by 8
  43. 1.86km NNW of The Geysers, CA · 1746 days ago · 1 km deep · 41 km away
  44. 2.55km NNW of The Geysers, CA · 1746 days ago · 1 km deep · 41 km away
  45. 1.54km SE of Clearlake Oaks, CA · 1745 days ago · 5 km deep · 49 km away
  46. 1.89km NNW of Redwood Valley, CA · 1745 days ago · 7 km deep · 38 km away
  47. 1.64km WNW of The Geysers, CA · 1745 days ago · 3 km deep · 42 km away
  48. 2.010km NNW of Redwood Valley, CA · 1745 days ago · 7 km deep · 38 km away · felt by 1
  49. 1.67km NE of Willits, CA · 1745 days ago · 7 km deep · 49 km away
  50. 2.19km NNW of Lake Pillsbury, CA · 1745 days ago · 7 km deep · 57 km away
  51. 2.23km SW of Anderson Springs, CA · 1744 days ago · 1 km deep · 51 km away
  52. 1.56km WNW of Cobb, CA · 1744 days ago · 2 km deep · 41 km away
  53. 2.46km WNW of North Lakeport, CA · 1742 days ago · 5 km deep · 24 km away · felt by 2
  54. 1.512km WNW of Cobb, CA · 1742 days ago · 1 km deep · 35 km away
  55. 1.55km NW of The Geysers, CA · 1742 days ago · 4 km deep · 41 km away
  56. 1.73km NNE of The Geysers, CA · 1741 days ago · 1 km deep · 46 km away
  57. 2.23km NW of The Geysers, CA · 1741 days ago · 1 km deep · 43 km away
  58. 1.63km SSE of The Geysers, CA · 1740 days ago · 1 km deep · 49 km away
  59. 1.52km W of Anderson Springs, CA · 1740 days ago · 2 km deep · 50 km away
  60. 2.57km NW of Cobb, CA · 1740 days ago · 3 km deep · 39 km away · felt by 4

The first 60 of at least 199.

Before

  1. 1.81km NE of The Geysers, CA · 1760 days ago · 0 km deep · 47 km away
  2. 1.61km ESE of The Geysers, CA · 1761 days ago · 1 km deep · 47 km away
  3. 1.53km ESE of The Geysers, CA · 1762 days ago · 1 km deep · 49 km away
  4. 1.66km WNW of Cobb, CA · 1762 days ago · 2 km deep · 40 km away
  5. 1.92km E of The Geysers, CA · 1762 days ago · 1 km deep · 48 km away
  6. 1.77km W of Cobb, CA · 1762 days ago · 3 km deep · 39 km away
  7. 1.62km NE of The Geysers, CA · 1763 days ago · 2 km deep · 47 km away
  8. 1.82km ESE of The Geysers, CA · 1764 days ago · 3 km deep · 48 km away
  9. 2.23km NNW of The Geysers, CA · 1764 days ago · 1 km deep · 44 km away
  10. 2.51km NW of The Geysers, CA · 1764 days ago · 1 km deep · 45 km away · felt by 1
  11. 1.85km NW of Point Arena, CA · 1764 days ago · 3 km deep · 47 km away
  12. 1.816km W of Ukiah, CA · 1765 days ago · 4 km deep · 24 km away
  13. 1.88km NW of The Geysers, CA · 1766 days ago · 2 km deep · 39 km away
  14. 2.41km NNW of The Geysers, CA · 1768 days ago · 2 km deep · 45 km away
  15. 1.53km SSW of Cobb, CA · 1768 days ago · 1 km deep · 47 km away
  16. 2.53km ENE of The Geysers, CA · 1768 days ago · 2 km deep · 48 km away · felt by 6
  17. 1.76km NW of The Geysers, CA · 1768 days ago · 3 km deep · 41 km away
  18. 1.68km NW of The Geysers, CA · 1769 days ago · 2 km deep · 39 km away
  19. 1.612km N of Brooktrails, CA · 1769 days ago · 7 km deep · 62 km away
  20. 1.64km SSE of Redwood Valley, CA · 1769 days ago · 6 km deep · 25 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73661701. Read Sun, Oct 4, 2026, 6:46 AM UTC.