California earthquakes

M1.7 earthquake 30km NNW of Bridgeport, CA

A magnitude 1.7 earthquake struck 30km NNW of Bridgeport, CA on Tue, Aug 17, 2021, 8:21 AM PDT (15:21 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M4.4 25km SSW of Smith Valley, NV. 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
1.7 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2021-08-17 15:21:25 UTC
Depth
0.2 km (0.1 mi), shallow
Epicenter
38.488° N, 119.416° 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, 0.2 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
112°
Stations used
13

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 201 in the 60 days after this one and at least 200 in the 30 days before it.

After

  1. 1.513 km NW of Benton, California · 1873 days ago · 1 km deep · 98 km away
  2. 2.023km ESE of Yosemite Valley, CA · 1873 days ago · 24 km deep · 93 km away
  3. 1.725km SSW of Smith Valley, NV · 1873 days ago · -1 km deep · 10 km away
  4. 1.625km SE of Bodie, CA · 1873 days ago · 3 km deep · 72 km away
  5. 1.625km ENE of Dardanelle, CA · 1873 days ago · 5 km deep · 15 km away
  6. 1.730km SE of Markleeville, CA · 1872 days ago · 6 km deep · 10 km away
  7. 1.730km SE of Markleeville, CA · 1872 days ago · 2 km deep · 10 km away
  8. 1.812 km NE of Hawthorne, Nevada · 1872 days ago · 6 km deep · 79 km away
  9. 1.734km E of Lee Vining, CA · 1872 days ago · 5 km deep · 83 km away
  10. 3.39 km ESE of Carson City, Nevada · 1872 days ago · 11 km deep · 74 km away · felt by 374
  11. 1.510 km ESE of Carson City, Nevada · 1872 days ago · 11 km deep · 74 km away
  12. 1.730km SE of Markleeville, CA · 1872 days ago · 6 km deep · 10 km away
  13. 1.932km ENE of Dardanelle, CA · 1871 days ago · 5 km deep · 9 km away
  14. 1.827km ESE of Markleeville, CA · 1871 days ago · 4 km deep · 13 km away
  15. 1.527km ESE of Markleeville, CA · 1871 days ago · 4 km deep · 13 km away
  16. 2.232km ENE of Dardanelle, CA · 1871 days ago · 5 km deep · 9 km away
  17. 1.931km NE of Dardanelle, CA · 1871 days ago · 3 km deep · 11 km away
  18. 1.628km SSW of Smith Valley, NV · 1871 days ago · 3 km deep · 8 km away
  19. 2.628km SE of Markleeville, CA · 1871 days ago · 4 km deep · 12 km away · felt by 2
  20. 2.429km SE of Markleeville, CA · 1871 days ago · 4 km deep · 11 km away
  21. 1.728km SE of Markleeville, CA · 1871 days ago · 4 km deep · 12 km away
  22. 1.728km SE of Markleeville, CA · 1871 days ago · 5 km deep · 11 km away
  23. 1.831km ENE of Dardanelle, CA · 1871 days ago · 3 km deep · 9 km away
  24. 1.629km SE of Markleeville, CA · 1871 days ago · 4 km deep · 11 km away
  25. 2.231km ENE of Dardanelle, CA · 1871 days ago · 4 km deep · 10 km away
  26. 2.227km ESE of Markleeville, CA · 1871 days ago · 5 km deep · 13 km away
  27. 1.532km SE of Markleeville, CA · 1870 days ago · 5 km deep · 8 km away
  28. 1.830km SSW of Smith Valley, NV · 1870 days ago · 1 km deep · 5 km away · felt by 1
  29. 1.625km ENE of Dardanelle, CA · 1870 days ago · 4 km deep · 15 km away
  30. 1.625km ENE of Dardanelle, CA · 1870 days ago · 3 km deep · 15 km away
  31. 2.229km SE of Markleeville, CA · 1870 days ago · 2 km deep · 11 km away
  32. 2.231km NE of Dardanelle, CA · 1870 days ago · 4 km deep · 11 km away
  33. 1.817km NW of Bridgeport, CA · 1870 days ago · 3 km deep · 14 km away
  34. 1.629km SSW of Smith Valley, NV · 1870 days ago · 2 km deep · 5 km away
  35. 1.727 km SW of Hawthorne, Nevada · 1869 days ago · 0 km deep · 49 km away
  36. 1.727km SSW of Smith Valley, NV · 1869 days ago · -1 km deep · 7 km away
  37. 2.426km SSW of Smith Valley, NV · 1869 days ago · -2 km deep · 7 km away
  38. 2.427km SSW of Smith Valley, NV · 1869 days ago · 2 km deep · 6 km away
  39. 2.627km SSW of Smith Valley, NV · 1869 days ago · 2 km deep · 7 km away
  40. 2.126km SSW of Smith Valley, NV · 1869 days ago · -2 km deep · 8 km away
  41. 1.626km SSW of Smith Valley, NV · 1869 days ago · -2 km deep · 8 km away
  42. 3.127km SSW of Smith Valley, NV · 1869 days ago · -2 km deep · 7 km away · felt by 1
  43. 2.227km SSW of Smith Valley, NV · 1869 days ago · 0 km deep · 7 km away
  44. 1.927km SSW of Smith Valley, NV · 1869 days ago · -1 km deep · 7 km away
  45. 2.228km SSW of Smith Valley, NV · 1869 days ago · 1 km deep · 6 km away
  46. 2.327km SSW of Smith Valley, NV · 1869 days ago · 1 km deep · 7 km away
  47. 3.229km SE of Markleeville, CA · 1869 days ago · 2 km deep · 11 km away · felt by 6
  48. 1.630km SE of Markleeville, CA · 1869 days ago · 2 km deep · 11 km away
  49. 1.729km SE of Markleeville, CA · 1869 days ago · 3 km deep · 11 km away
  50. 2.229km SE of Markleeville, CA · 1869 days ago · 2 km deep · 11 km away · felt by 1
  51. 2.129km SE of Markleeville, CA · 1869 days ago · 3 km deep · 11 km away
  52. 1.829km SE of Markleeville, CA · 1869 days ago · 2 km deep · 11 km away
  53. 1.828km SSW of Smith Valley, NV · 1869 days ago · 2 km deep · 6 km away
  54. 1.629km SE of Markleeville, CA · 1869 days ago · 3 km deep · 11 km away
  55. 2.227km SSW of Smith Valley, NV · 1869 days ago · 2 km deep · 7 km away
  56. 1.829km SE of Markleeville, CA · 1869 days ago · 2 km deep · 11 km away
  57. 1.625km ENE of Dardanelle, CA · 1869 days ago · 0 km deep · 15 km away
  58. 3.128km SSW of Smith Valley, NV · 1869 days ago · 3 km deep · 7 km away
  59. 1.633km ENE of Dardanelle, CA · 1869 days ago · 5 km deep · 8 km away
  60. 2.629km SSW of Smith Valley, NV · 1869 days ago · 3 km deep · 7 km away · felt by 2

The first 60 of at least 201.

Before

  1. 1.812 km NW of Benton, California · 1873 days ago · 10 km deep · 99 km away
  2. 2.240km NNE of Toms Place, CA · 1874 days ago · 1 km deep · 99 km away
  3. 2.429km SSW of Smith Valley, NV · 1874 days ago · 2 km deep · 7 km away · felt by 1
  4. 1.529km ENE of Dardanelle, CA · 1875 days ago · 2 km deep · 11 km away
  5. 1.626km ENE of Dardanelle, CA · 1875 days ago · -2 km deep · 14 km away
  6. 2.230km SE of Markleeville, CA · 1875 days ago · 3 km deep · 11 km away
  7. 1.532km ENE of Dardanelle, CA · 1876 days ago · 5 km deep · 9 km away
  8. 2.217km NW of Bridgeport, CA · 1876 days ago · 3 km deep · 13 km away
  9. 1.53 km ESE of Coleville, California · 1876 days ago · 1 km deep · 8 km away
  10. 1.632km ENE of Dardanelle, CA · 1876 days ago · 4 km deep · 9 km away
  11. 2.228km SE of Markleeville, CA · 1877 days ago · 5 km deep · 12 km away · felt by 1
  12. 1.628km SSW of Smith Valley, NV · 1877 days ago · 3 km deep · 7 km away · felt by 2
  13. 2.140km NNE of Toms Place, CA · 1877 days ago · 8 km deep · 99 km away
  14. 1.926km SSW of Smith Valley, NV · 1877 days ago · 1 km deep · 10 km away
  15. 1.539km NNE of Toms Place, CA · 1877 days ago · 5 km deep · 100 km away
  16. 2.232km SE of Markleeville, CA · 1877 days ago · 6 km deep · 9 km away
  17. 2.225km SSW of Smith Valley, NV · 1877 days ago · 0 km deep · 10 km away
  18. 1.632km SE of Markleeville, CA · 1877 days ago · 7 km deep · 8 km away
  19. 1.828km ESE of Markleeville, CA · 1878 days ago · 5 km deep · 12 km away
  20. 1.626km SSW of Smith Valley, NV · 1878 days ago · 1 km deep · 10 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73611166. Read Sun, Oct 4, 2026, 12:19 AM UTC.