California earthquakes

M1.9 earthquake 3 km NNE of Willows, California

A magnitude 1.9 earthquake struck 3 km NNE of Willows, California on Wed, Apr 13, 1983, 5:50 AM PST (13:50 UTC), 19 km (12 mi) below the surface.

A larger quake followed: M3.6 10 km W of Manton, California. This one was a foreshock.

Willows 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
1.9 (md), micro
Local time
UTC
1983-04-13 13:50:44 UTC
Depth
18.8 km (11.7 mi), shallow
Epicenter
39.559° N, 122.184° 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 0.9 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.02
Depth from
From location
Station coverage gap
299°, poorly surrounded by stations
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 131 in the 60 days after this one and 68 in the 30 days before it.

After

  1. 2.75 km SW of Cobb, California · 15873 days ago · 0 km deep · 100 km away
  2. 1.97 km W of Cobb, California · 15872 days ago · 3 km deep · 99 km away
  3. 1.611 km NNE of Brooktrails, California · 15872 days ago · 11 km deep · 100 km away
  4. 3.27 km WSW of Cobb, California · 15871 days ago · 3 km deep · 99 km away
  5. 3.07 km W of Cobb, California · 15871 days ago · 2 km deep · 99 km away
  6. 1.95 km SW of Cobb, California · 15871 days ago · 0 km deep · 99 km away
  7. 2.77 km WSW of Cobb, California · 15871 days ago · 2 km deep · 99 km away
  8. 1.69 km W of Cobb, California · 15870 days ago · 1 km deep · 99 km away
  9. 1.67 km WSW of Cobb, California · 15870 days ago · 1 km deep · 100 km away
  10. 1.67 km WSW of Cobb, California · 15869 days ago · 1 km deep · 99 km away
  11. 1.922 km NE of Potter Valley, California · 15868 days ago · 6 km deep · 65 km away
  12. 1.97 km WSW of Cobb, California · 15868 days ago · 0 km deep · 100 km away
  13. 3.56 km W of Cobb, California · 15867 days ago · 3 km deep · 98 km away
  14. 1.56 km W of Cobb, California · 15867 days ago · 3 km deep · 98 km away
  15. 1.613 km N of Princeton, California · 15867 days ago · 9 km deep · 15 km away
  16. 1.94 km S of Cobb, California · 15867 days ago · 1 km deep · 99 km away
  17. 1.57 km WSW of Cobb, California · 15867 days ago · 3 km deep · 100 km away
  18. 1.95 km SSW of Cobb, California · 15865 days ago · -1 km deep · 100 km away
  19. 2.012 km ENE of Hidden Valley Lake, California · 15865 days ago · 6 km deep · 81 km away
  20. 3.118 km E of Potter Valley, California · 15865 days ago · 10 km deep · 66 km away
  21. 1.818 km E of Potter Valley, California · 15865 days ago · 8 km deep · 66 km away
  22. 1.65 km SW of Cobb, California · 15865 days ago · 0 km deep · 99 km away
  23. 2.14 km SW of Cobb, California · 15864 days ago · -1 km deep · 98 km away
  24. 2.04 km SSE of Clear Lake Riviera, California · 15864 days ago · 3 km deep · 84 km away
  25. 1.55 km ENE of Willits, California · 15864 days ago · 3 km deep · 97 km away
  26. 1.69 km ESE of Hidden Valley Lake, California · 15864 days ago · 4 km deep · 88 km away
  27. 3.610 km W of Manton, California · 15863 days ago · 2 km deep · 99 km away
  28. 1.84 km S of Cobb, California · 15863 days ago · 1 km deep · 98 km away
  29. 1.94 km S of Cobb, California · 15863 days ago · 2 km deep · 99 km away
  30. 2.56 km WSW of Cobb, California · 15863 days ago · 0 km deep · 100 km away
  31. 1.96 km WSW of Cobb, California · 15862 days ago · 1 km deep · 99 km away
  32. 1.6near the coast of Northern California · 15862 days ago · 3 km deep · 94 km away
  33. 1.77 km WSW of Cobb, California · 15862 days ago · 3 km deep · 99 km away
  34. 2.26 km SW of Cobb, California · 15862 days ago · 0 km deep · 100 km away
  35. 2.79 km NW of Hamilton City, California · 15861 days ago · 35 km deep · 29 km away
  36. 2.07 km WSW of Cobb, California · 15859 days ago · 0 km deep · 100 km away
  37. 1.920 km NE of Potter Valley, California · 15859 days ago · 13 km deep · 65 km away
  38. 2.05 km SSE of Hamilton City, California · 15858 days ago · 12 km deep · 22 km away
  39. 2.06 km WSW of Cobb, California · 15858 days ago · 3 km deep · 99 km away
  40. 1.89 km NNE of Brooktrails, California · 15857 days ago · 8 km deep · 98 km away
  41. 1.85 km W of Cobb, California · 15857 days ago · 2 km deep · 98 km away
  42. 2.17 km W of Cobb, California · 15856 days ago · 3 km deep · 99 km away
  43. 1.57 km W of Cobb, California · 15856 days ago · 3 km deep · 98 km away
  44. 1.88 km W of Cobb, California · 15856 days ago · 3 km deep · 100 km away
  45. 1.618 km NE of Upper Lake, California · 15856 days ago · 10 km deep · 58 km away
  46. 1.62 km NE of Clearlake, California · 15856 days ago · -1 km deep · 74 km away
  47. 1.64 km SW of Cobb, California · 15855 days ago · -1 km deep · 99 km away
  48. 2.032 km WNW of Paskenta, California · 15855 days ago · 14 km deep · 76 km away
  49. 2.47 km WSW of Cobb, California · 15852 days ago · 2 km deep · 100 km away
  50. 1.91 km SE of Calpella, California · 15849 days ago · 3 km deep · 94 km away
  51. 1.62 km SE of Clear Lake Riviera, California · 15849 days ago · 1 km deep · 82 km away
  52. 2.05 km W of Cobb, California · 15849 days ago · 0 km deep · 96 km away
  53. 2.28 km WSW of Cobb, California · 15849 days ago · 3 km deep · 100 km away
  54. 1.72 km SE of Clear Lake Riviera, California · 15849 days ago · 0 km deep · 82 km away
  55. 1.77 km W of Cobb, California · 15848 days ago · 5 km deep · 99 km away
  56. 1.922 km NNE of Potter Valley, California · 15847 days ago · 5 km deep · 69 km away
  57. 1.524 km SE of Covelo, California · 15846 days ago · 5 km deep · 77 km away
  58. 1.826 km N of Potter Valley, California · 15846 days ago · 0 km deep · 77 km away
  59. 1.77 km W of Cobb, California · 15846 days ago · 2 km deep · 99 km away
  60. 1.76 km WSW of Cobb, California · 15841 days ago · 2 km deep · 100 km away

The first 60 of 131.

Before

  1. 2.56 km W of Cobb, California · 15874 days ago · 2 km deep · 98 km away
  2. 2.06 km W of Cobb, California · 15874 days ago · 3 km deep · 97 km away
  3. 2.46 km W of Cobb, California · 15875 days ago · 3 km deep · 98 km away
  4. 2.27 km W of Cobb, California · 15875 days ago · 0 km deep · 99 km away
  5. 1.68 km WSW of Cobb, California · 15875 days ago · 3 km deep · 100 km away
  6. 2.16 km W of Cobb, California · 15875 days ago · 3 km deep · 98 km away
  7. 2.34 km WNW of Nord, California · 15876 days ago · 11 km deep · 30 km away
  8. 2.25 km W of Cobb, California · 15876 days ago · -1 km deep · 97 km away
  9. 1.716 km S of Hamilton City, California · 15876 days ago · 24 km deep · 17 km away
  10. 1.911 km S of Mineral, California · 15877 days ago · -1 km deep · 92 km away
  11. 1.813 km SSW of Mineral, California · 15878 days ago · -1 km deep · 89 km away
  12. 2.56 km W of Cobb, California · 15878 days ago · 3 km deep · 98 km away
  13. 2.427 km N of Potter Valley, California · 15878 days ago · 3 km deep · 75 km away
  14. 1.66 km W of Cobb, California · 15879 days ago · 3 km deep · 98 km away
  15. 1.92 km ENE of Talmage, California · 15879 days ago · 4 km deep · 95 km away
  16. 3.63 km E of Talmage, California · 15879 days ago · 7 km deep · 94 km away
  17. 2.05 km SW of Cobb, California · 15879 days ago · 0 km deep · 100 km away
  18. 1.77 km W of Cobb, California · 15879 days ago · 1 km deep · 98 km away
  19. 1.86 km W of Cobb, California · 15879 days ago · 3 km deep · 97 km away
  20. 1.57 km W of Cobb, California · 15880 days ago · 3 km deep · 98 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1090344. Read Sun, Sep 27, 2026, 7:42 AM UTC.