California earthquakes

M1.5 earthquake 3km W of Cobb, CA

A magnitude 1.5 earthquake struck 3km W of Cobb, CA on Mon, Mar 8, 2021, 6:23 AM PST (14:23 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M4.0 21km SSW of Willits, CA. 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
1.5 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2021-03-08 14:23:57 UTC
Depth
1.7 km (1.1 mi), shallow
Epicenter
38.819° N, 122.762° 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, 0.2 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
50°
Stations used
39

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 195 in the 60 days after this one and 90 in the 30 days before it.

After

  1. 2.06km NW of The Geysers, CA · 2035 days ago · 3 km deep · 3 km away
  2. 1.72km NW of The Geysers, CA · 2034 days ago · 2 km deep · 4 km away
  3. 1.76km NW of The Geysers, CA · 2034 days ago · 3 km deep · 3 km away
  4. 1.65km WNW of Cobb, CA · 2034 days ago · 2 km deep · 2 km away
  5. 2.13km W of Cobb, CA · 2033 days ago · 2 km deep · 0 km away
  6. 1.86km NW of The Geysers, CA · 2032 days ago · 3 km deep · 3 km away
  7. 2.018km NE of Upper Lake, CA · 2032 days ago · 2 km deep · 50 km away
  8. 1.818km SE of Lake Pillsbury, CA · 2032 days ago · 7 km deep · 54 km away
  9. 1.910km NNW of Redwood Valley, CA · 2031 days ago · 6 km deep · 72 km away
  10. 1.88km NW of The Geysers, CA · 2031 days ago · 2 km deep · 5 km away
  11. 1.822km SE of Covelo, CA · 2031 days ago · 5 km deep · 95 km away
  12. 1.810km ESE of Willits, CA · 2031 days ago · 6 km deep · 74 km away
  13. 1.76km SSW of Yountville, CA · 2030 days ago · 7 km deep · 62 km away · felt by 1
  14. 1.62km E of Vallejo, CA · 2030 days ago · 7 km deep · 92 km away
  15. 1.910km ESE of Willits, CA · 2028 days ago · 6 km deep · 74 km away
  16. 2.710km WNW of American Canyon, CA · 2026 days ago · 9 km deep · 76 km away · felt by 20
  17. 1.613km NW of The Geysers, CA · 2026 days ago · 3 km deep · 10 km away
  18. 2.27km NW of The Geysers, CA · 2026 days ago · 3 km deep · 4 km away
  19. 2.713km W of Lake Pillsbury, CA · 2026 days ago · 1 km deep · 74 km away · felt by 6
  20. 1.911km N of Healdsburg, CA · 2025 days ago · 6 km deep · 15 km away
  21. 1.89km WNW of The Geysers, CA · 2025 days ago · 2 km deep · 7 km away
  22. 1.81km NNE of The Geysers, CA · 2023 days ago · 2 km deep · 4 km away
  23. 1.95km NW of The Geysers, CA · 2023 days ago · 3 km deep · 3 km away
  24. 2.013km WNW of Lake Pillsbury, CA · 2023 days ago · 1 km deep · 75 km away
  25. 1.65km S of Yountville, CA · 2023 days ago · 5 km deep · 62 km away
  26. 1.522km E of Navarro Head, CA · 2023 days ago · 1 km deep · 78 km away
  27. 1.97km W of Cobb, CA · 2023 days ago · 3 km deep · 4 km away
  28. 2.73km SSW of Anderson Springs, CA · 2022 days ago · 2 km deep · 9 km away · felt by 1
  29. 1.63km ENE of The Geysers, CA · 2022 days ago · 1 km deep · 5 km away
  30. 2.39km WNW of The Geysers, CA · 2021 days ago · 2 km deep · 7 km away
  31. 2.24km W of Cobb, CA · 2021 days ago · 2 km deep · 1 km away
  32. 2.24km W of Cobb, CA · 2021 days ago · 2 km deep · 1 km away
  33. 2.24km SSW of Anderson Springs, CA · 2021 days ago · 2 km deep · 9 km away
  34. 1.84km SSW of Anderson Springs, CA · 2021 days ago · 1 km deep · 10 km away
  35. 2.810km ENE of Yountville, CA · 2021 days ago · 11 km deep · 62 km away · felt by 42
  36. 1.811km ENE of Yountville, CA · 2021 days ago · 7 km deep · 63 km away · felt by 1
  37. 1.75km NW of The Geysers, CA · 2021 days ago · 1 km deep · 4 km away
  38. 1.86km WNW of The Geysers, CA · 2021 days ago · 3 km deep · 5 km away
  39. 2.27km SW of Arbuckle, CA · 2020 days ago · 15 km deep · 58 km away · felt by 1
  40. 4.021km SSW of Willits, CA · 2020 days ago · 8 km deep · 78 km away · felt by 126
  41. 2.821km SSW of Willits, CA · 2020 days ago · 7 km deep · 78 km away · felt by 13
  42. 1.620km SSW of Willits, CA · 2020 days ago · 8 km deep · 78 km away
  43. 1.94km SW of Anderson Springs, CA · 2020 days ago · 2 km deep · 9 km away
  44. 2.410km SE of Willits, CA · 2019 days ago · 6 km deep · 73 km away · felt by 2
  45. 2.26km WNW of Cobb, CA · 2019 days ago · 2 km deep · 3 km away
  46. 1.76km WNW of Cobb, CA · 2019 days ago · 2 km deep · 3 km away
  47. 1.54km WNW of The Geysers, CA · 2018 days ago · 0 km deep · 4 km away
  48. 1.96km NW of The Geysers, CA · 2018 days ago · 3 km deep · 3 km away
  49. 2.813km SE of Talmage, CA · 2018 days ago · 2 km deep · 37 km away · felt by 4
  50. 2.813km SE of Talmage, CA · 2018 days ago · -1 km deep · 37 km away · felt by 17
  51. 2.04km SSW of Anderson Springs, CA · 2017 days ago · 1 km deep · 10 km away
  52. 1.913km SE of Talmage, CA · 2017 days ago · 2 km deep · 36 km away
  53. 1.77km E of Willits, CA · 2016 days ago · 7 km deep · 79 km away
  54. 2.04km NW of The Geysers, CA · 2015 days ago · 1 km deep · 3 km away · felt by 1
  55. 1.820km NNW of Boonville, CA · 2014 days ago · 5 km deep · 73 km away
  56. 3.15km W of Cobb, CA · 2014 days ago · 1 km deep · 2 km away · felt by 12
  57. 1.93km NNW of The Geysers, CA · 2014 days ago · 0 km deep · 2 km away
  58. 1.83km NNW of The Geysers, CA · 2014 days ago · 0 km deep · 2 km away
  59. 1.75km W of Cobb, CA · 2014 days ago · 2 km deep · 2 km away
  60. 1.51km WNW of The Geysers, CA · 2013 days ago · 1 km deep · 4 km away

The first 60 of 195.

Before

  1. 1.810km ESE of Willits, CA · 2037 days ago · 5 km deep · 74 km away
  2. 1.66km NW of The Geysers, CA · 2037 days ago · 3 km deep · 4 km away
  3. 1.520km SSW of Willits, CA · 2037 days ago · 6 km deep · 76 km away
  4. 2.611km ESE of Willits, CA · 2037 days ago · 7 km deep · 73 km away · felt by 19
  5. 1.52km E of The Geysers, CA · 2038 days ago · 1 km deep · 6 km away
  6. 1.99km NNE of Brooktrails, CA · 2039 days ago · 9 km deep · 93 km away
  7. 1.75km WNW of Angwin, CA · 2039 days ago · 4 km deep · 34 km away
  8. 2.34km NW of The Geysers, CA · 2039 days ago · 2 km deep · 2 km away
  9. 2.74km NNW of The Geysers, CA · 2039 days ago · 1 km deep · 2 km away · felt by 2
  10. 1.64km NNW of The Geysers, CA · 2039 days ago · 1 km deep · 2 km away · felt by 3
  11. 2.013km W of Lake Pillsbury, CA · 2039 days ago · -1 km deep · 73 km away
  12. 1.75km NW of The Geysers, CA · 2039 days ago · 3 km deep · 3 km away
  13. 1.85km SSW of Redwood Valley, CA · 2040 days ago · 0 km deep · 61 km away
  14. 3.16km WSW of St. Helena, CA · 2040 days ago · 11 km deep · 43 km away · felt by 234
  15. 1.63km SSW of Cobb, CA · 2040 days ago · 2 km deep · 3 km away
  16. 2.08km W of Cobb, CA · 2041 days ago · 2 km deep · 4 km away · felt by 1
  17. 1.96km ESE of St. Helena, CA · 2042 days ago · 7 km deep · 49 km away
  18. 1.77km SW of Boonville, CA · 2042 days ago · 0 km deep · 60 km away
  19. 2.93km SE of The Geysers, CA · 2043 days ago · 1 km deep · 7 km away · felt by 7
  20. 2.52km SE of The Geysers, CA · 2043 days ago · 1 km deep · 7 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73532831. Read Sun, Oct 4, 2026, 7:58 PM UTC.