California earthquakes

M1.8 earthquake 10km NE of Napa, CA

A magnitude 1.8 earthquake struck 10km NE of Napa, CA on Wed, Aug 11, 2021, 7:03 AM PDT (14:03 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M3.4 3km N of San Leandro, CA. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.8 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2021-08-11 14:03:14 UTC
Depth
13.0 km (8.1 mi), shallow
Epicenter
38.350° N, 122.198° 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
±0.13
Depth from
From location
Station coverage gap
112°
Stations used
32

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 155 in the 60 days after this one and 81 in the 30 days before it.

After

  1. 1.84km NNW of The Geysers, CA · 1879 days ago · 2 km deep · 72 km away
  2. 1.73km E of The Geysers, CA · 1879 days ago · 1 km deep · 66 km away
  3. 1.612km ESE of Hidden Valley Lake, CA · 1879 days ago · 8 km deep · 50 km away
  4. 2.32km WNW of Tomales, CA · 1879 days ago · 4 km deep · 64 km away · felt by 17
  5. 1.61km NE of Berkeley, CA · 1878 days ago · 6 km deep · 53 km away
  6. 1.67km NW of The Geysers, CA · 1878 days ago · 2 km deep · 75 km away · felt by 2
  7. 1.55km E of Fremont, CA · 1877 days ago · 7 km deep · 93 km away
  8. 1.66km NW of The Geysers, CA · 1877 days ago · 3 km deep · 74 km away
  9. 1.58km SW of Calistoga, CA · 1876 days ago · 9 km deep · 44 km away
  10. 1.75km WNW of Dublin, CA · 1876 days ago · 6 km deep · 72 km away
  11. 2.46km N of Cobb, CA · 1875 days ago · 3 km deep · 74 km away · felt by 10
  12. 1.78km NW of The Geysers, CA · 1875 days ago · 2 km deep · 76 km away
  13. 2.413km NE of Yountville, CA · 1875 days ago · 5 km deep · 17 km away · felt by 1
  14. 1.81km ENE of Alamo, CA · 1874 days ago · 13 km deep · 57 km away
  15. 1.513km E of Angwin, CA · 1874 days ago · 3 km deep · 25 km away
  16. 2.512km ESE of Angwin, CA · 1874 days ago · 0 km deep · 24 km away · felt by 5
  17. 1.75km NW of The Geysers, CA · 1874 days ago · 3 km deep · 73 km away
  18. 1.62km NNE of The Geysers, CA · 1872 days ago · 1 km deep · 69 km away
  19. 1.82km SSW of Bodega Bay, CA · 1872 days ago · 11 km deep · 75 km away
  20. 1.82km SSW of Bodega Bay, CA · 1872 days ago · 10 km deep · 75 km away
  21. 2.12km SSW of Bodega Bay, CA · 1872 days ago · 10 km deep · 75 km away
  22. 1.74km SSE of The Geysers, CA · 1871 days ago · 1 km deep · 65 km away · felt by 1
  23. 2.41km ESE of The Geysers, CA · 1871 days ago · 2 km deep · 67 km away
  24. 1.911km SW of The Geysers, CA · 1871 days ago · 6 km deep · 70 km away
  25. 1.511km SW of The Geysers, CA · 1870 days ago · 6 km deep · 70 km away
  26. 1.86km WNW of The Geysers, CA · 1870 days ago · 3 km deep · 73 km away
  27. 2.28km WNW of Cobb, CA · 1868 days ago · 2 km deep · 76 km away
  28. 1.64km SW of Colma, CA · 1867 days ago · 7 km deep · 82 km away
  29. 1.82km NW of Pacifica, CA · 1867 days ago · 8 km deep · 85 km away · felt by 2
  30. 2.07km W of Calistoga, CA · 1867 days ago · 8 km deep · 47 km away · felt by 8
  31. 1.77km WSW of St. Helena, CA · 1866 days ago · 8 km deep · 34 km away
  32. 1.611km NE of Napa, CA · 1866 days ago · 10 km deep · 2 km away
  33. 2.43km W of Anderson Springs, CA · 1865 days ago · 2 km deep · 66 km away
  34. 2.510km NW of The Geysers, CA · 1864 days ago · 2 km deep · 78 km away
  35. 1.83km SW of Alamo, CA · 1864 days ago · 12 km deep · 59 km away
  36. 1.65km W of Cobb, CA · 1863 days ago · 1 km deep · 73 km away
  37. 2.53km ESE of Larkfield-Wikiup, CA · 1863 days ago · 7 km deep · 49 km away · felt by 122
  38. 1.57km WSW of St. Helena, CA · 1863 days ago · 9 km deep · 33 km away
  39. 2.14km S of Larkfield-Wikiup, CA · 1863 days ago · 7 km deep · 50 km away · felt by 5
  40. 1.91km WNW of The Geysers, CA · 1863 days ago · 1 km deep · 69 km away
  41. 1.66km NW of The Geysers, CA · 1862 days ago · 3 km deep · 74 km away
  42. 1.59km WNW of Cobb, CA · 1862 days ago · 2 km deep · 77 km away
  43. 1.78km SSW of Livermore, CA · 1862 days ago · 10 km deep · 90 km away
  44. 1.97km NW of The Geysers, CA · 1862 days ago · 2 km deep · 75 km away
  45. 2.73km WNW of Cobb, CA · 1861 days ago · 0 km deep · 72 km away · felt by 6
  46. 2.23km WNW of Cobb, CA · 1861 days ago · 0 km deep · 72 km away
  47. 1.93km WNW of Cobb, CA · 1861 days ago · 0 km deep · 72 km away
  48. 1.63km WNW of Cobb, CA · 1861 days ago · 0 km deep · 72 km away
  49. 1.91km NNE of The Geysers, CA · 1861 days ago · 2 km deep · 68 km away
  50. 1.95km NW of The Geysers, CA · 1861 days ago · 2 km deep · 73 km away
  51. 2.16km NW of The Geysers, CA · 1860 days ago · 3 km deep · 74 km away
  52. 2.514km W of Williams, CA · 1860 days ago · 21 km deep · 92 km away
  53. 1.73km ENE of The Geysers, CA · 1860 days ago · 2 km deep · 67 km away
  54. 1.810km NNE of Windsor, CA · 1860 days ago · 7 km deep · 57 km away
  55. 2.411km NE of Milpitas, CA · 1859 days ago · 4 km deep · 100 km away
  56. 1.88km NNE of Black Point-Green Point, CA · 1859 days ago · 8 km deep · 31 km away
  57. 1.512km WNW of The Geysers, CA · 1859 days ago · 2 km deep · 80 km away
  58. 1.610km WNW of The Geysers, CA · 1859 days ago · 2 km deep · 77 km away
  59. 1.69km WNW of Cobb, CA · 1858 days ago · 2 km deep · 77 km away
  60. 1.73km SW of Angwin, CA · 1858 days ago · 4 km deep · 34 km away

The first 60 of 155.

Before

  1. 1.88km NW of The Geysers, CA · 1881 days ago · 2 km deep · 76 km away
  2. 1.88km NW of The Geysers, CA · 1881 days ago · 2 km deep · 76 km away
  3. 2.01km NNW of Pleasant Hill, CA · 1881 days ago · 11 km deep · 45 km away · felt by 12
  4. 2.212km ESE of Hidden Valley Lake, CA · 1881 days ago · 10 km deep · 50 km away
  5. 1.68km NW of The Geysers, CA · 1882 days ago · 2 km deep · 76 km away
  6. 1.64km E of Cloverdale, CA · 1884 days ago · 0 km deep · 84 km away · felt by 3
  7. 1.52km ESE of Berkeley, CA · 1884 days ago · 4 km deep · 54 km away
  8. 1.911km NE of Milpitas, CA · 1885 days ago · 5 km deep · 100 km away · felt by 3
  9. 1.54km E of Moraga, CA · 1885 days ago · 3 km deep · 58 km away
  10. 1.95km WNW of Cobb, CA · 1885 days ago · 2 km deep · 74 km away
  11. 1.87km S of Muir Beach, CA · 1886 days ago · 13 km deep · 70 km away
  12. 1.63km WSW of Cobb, CA · 1886 days ago · 2 km deep · 71 km away
  13. 1.710km NNE of Angwin, CA · 1887 days ago · 7 km deep · 39 km away
  14. 2.04km E of Cloverdale, CA · 1887 days ago · 0 km deep · 84 km away · felt by 1
  15. 1.810km E of Clearlake, CA · 1888 days ago · 3 km deep · 75 km away
  16. 2.15km SSE of Cloverdale, CA · 1888 days ago · 3 km deep · 84 km away · felt by 10
  17. 1.55km NW of The Geysers, CA · 1889 days ago · 2 km deep · 73 km away
  18. 2.43km W of Anderson Springs, CA · 1889 days ago · 1 km deep · 66 km away
  19. 1.72km W of Anderson Springs, CA · 1889 days ago · 2 km deep · 65 km away · felt by 1
  20. 2.24km NNE of Blackhawk, CA · 1889 days ago · 9 km deep · 62 km away · felt by 2

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73608686. Read Sat, Oct 3, 2026, 9:46 PM UTC.