California earthquakes

M1.8 earthquake 9 km SSE of Willits, California

A magnitude 1.8 earthquake struck 9 km SSE of Willits, California on Mon, Aug 4, 1980, 5:39 PM PDT (00:39 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.0 6 km WSW of Cobb, California. This one was a foreshock.

Willits 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
1.8 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1980-08-05 00:39:48 UTC
Depth
6.2 km (3.9 mi), shallow
Epicenter
39.335° N, 123.310° 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, 1.0 km in depth
Magnitude uncertainty
±0.17
Depth from
From location
Station coverage gap
57°
Stations used
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 97 in the 60 days after this one and 48 in the 30 days before it.

After

  1. 1.9near the coast of Northern California · 16861 days ago · 8 km deep · 13 km away
  2. 1.88 km E of Hidden Valley Lake, California · 16859 days ago · 10 km deep · 94 km away
  3. 1.66 km W of Cobb, California · 16859 days ago · 3 km deep · 73 km away
  4. 1.78 km ESE of Hidden Valley Lake, California · 16858 days ago · 6 km deep · 95 km away
  5. 1.625 km ENE of Potter Valley, California · 16858 days ago · 11 km deep · 41 km away
  6. 1.828 km SE of Covelo, California · 16858 days ago · 16 km deep · 42 km away
  7. 2.03 km NNW of Laytonville, California · 16857 days ago · 11 km deep · 45 km away
  8. 2.44 km WSW of Cobb, California · 16857 days ago · 2 km deep · 76 km away
  9. 2.47 km WSW of Cobb, California · 16857 days ago · 1 km deep · 73 km away
  10. 1.67 km WSW of Cobb, California · 16857 days ago · 2 km deep · 73 km away
  11. 1.77 km WSW of Cobb, California · 16856 days ago · 2 km deep · 73 km away
  12. 1.87 km E of Willits, California · 16856 days ago · 7 km deep · 9 km away
  13. 2.56 km WSW of Cobb, California · 16856 days ago · 1 km deep · 73 km away
  14. 1.929 km SE of Covelo, California · 16855 days ago · 13 km deep · 39 km away
  15. 2.629 km SE of Covelo, California · 16855 days ago · 15 km deep · 40 km away
  16. 1.84 km E of Geyserville, California · 16853 days ago · 3 km deep · 80 km away
  17. 1.88 km SE of Willits, California · 16852 days ago · 8 km deep · 3 km away
  18. 2.125 km SE of Covelo, California · 16851 days ago · 7 km deep · 37 km away
  19. 1.59 km NW of Redwood Valley, California · 16851 days ago · 2 km deep · 2 km away
  20. 2.56 km E of Geyserville, California · 16851 days ago · 3 km deep · 82 km away
  21. 1.820 km NE of Potter Valley, California · 16850 days ago · 2 km deep · 33 km away
  22. 1.819 km ENE of Potter Valley, California · 16849 days ago · 5 km deep · 35 km away
  23. 1.93 km NE of Redway, California · 16849 days ago · 20 km deep · 98 km away
  24. 1.76 km W of Cobb, California · 16848 days ago · 3 km deep · 73 km away
  25. 2.18 km SSE of Middletown, California · 16847 days ago · 8 km deep · 97 km away
  26. 1.61 km NNW of Middletown, California · 16846 days ago · 5 km deep · 87 km away
  27. 2.76 km WSW of Cobb, California · 16846 days ago · 0 km deep · 74 km away
  28. 1.94 km NW of Redwood Valley, California · 16845 days ago · 5 km deep · 7 km away
  29. 2.27 km W of Cobb, California · 16844 days ago · 1 km deep · 73 km away
  30. 2.16 km WSW of Cobb, California · 16844 days ago · 0 km deep · 73 km away
  31. 2.67 km WSW of Cobb, California · 16844 days ago · -1 km deep · 73 km away
  32. 1.76 km W of Cobb, California · 16844 days ago · 0 km deep · 73 km away
  33. 2.17 km WSW of Cobb, California · 16844 days ago · 0 km deep · 73 km away
  34. 2.319 km NE of Potter Valley, California · 16844 days ago · 7 km deep · 32 km away
  35. 1.67 km WSW of Cobb, California · 16843 days ago · 1 km deep · 73 km away
  36. 2.94 km SW of Cobb, California · 16842 days ago · 4 km deep · 76 km away
  37. 2.87 km WSW of Cobb, California · 16842 days ago · 2 km deep · 73 km away
  38. 1.77 km W of Cobb, California · 16842 days ago · 3 km deep · 71 km away
  39. 2.16 km W of Cobb, California · 16841 days ago · 1 km deep · 73 km away
  40. 2.13 km NW of Sea Ranch, California · 16841 days ago · 2 km deep · 69 km away
  41. 2.64 km WSW of Cobb, California · 16841 days ago · 2 km deep · 76 km away
  42. 1.618 km N of Upper Lake, California · 16841 days ago · 5 km deep · 37 km away
  43. 1.611 km E of Hidden Valley Lake, California · 16841 days ago · 8 km deep · 96 km away
  44. 1.612 km E of Hidden Valley Lake, California · 16841 days ago · 10 km deep · 96 km away
  45. 1.611 km E of Hidden Valley Lake, California · 16841 days ago · 8 km deep · 96 km away
  46. 1.810 km E of Hidden Valley Lake, California · 16841 days ago · 9 km deep · 95 km away
  47. 1.66 km W of Cobb, California · 16840 days ago · 3 km deep · 73 km away
  48. 1.66 km W of Cobb, California · 16840 days ago · 3 km deep · 73 km away
  49. 2.111 km E of Hidden Valley Lake, California · 16839 days ago · 9 km deep · 95 km away
  50. 2.19 km WSW of Cobb, California · 16839 days ago · 2 km deep · 73 km away
  51. 1.96 km W of Cobb, California · 16839 days ago · 4 km deep · 73 km away
  52. 1.66 km W of Cobb, California · 16837 days ago · 3 km deep · 72 km away
  53. 1.66 km WSW of Cobb, California · 16836 days ago · 1 km deep · 73 km away
  54. 2.37 km W of Cobb, California · 16836 days ago · 2 km deep · 71 km away
  55. 1.76 km W of Cobb, California · 16835 days ago · 0 km deep · 73 km away
  56. 1.96 km WSW of Cobb, California · 16831 days ago · 1 km deep · 73 km away
  57. 1.94 km W of Laytonville, California · 16823 days ago · 5 km deep · 43 km away
  58. 1.99 km WSW of Cobb, California · 16822 days ago · 1 km deep · 72 km away
  59. 2.415 km N of Laytonville, California · 16821 days ago · 5 km deep · 57 km away
  60. 1.86 km WNW of Cobb, California · 16819 days ago · 1 km deep · 71 km away

The first 60 of 97.

Before

  1. 2.714 km SSE of Laytonville, California · 16863 days ago · 9 km deep · 28 km away
  2. 1.723 km ENE of Potter Valley, California · 16863 days ago · 14 km deep · 38 km away
  3. 2.01 km ENE of Nice, California · 16864 days ago · 6 km deep · 47 km away
  4. 1.89 km SE of Talmage, California · 16864 days ago · 2 km deep · 35 km away
  5. 2.09 km SE of Talmage, California · 16864 days ago · 0 km deep · 35 km away
  6. 1.724 km N of Potter Valley, California · 16864 days ago · 24 km deep · 29 km away
  7. 2.99 km SE of Talmage, California · 16864 days ago · 1 km deep · 35 km away
  8. 1.71 km NE of Hopland, California · 16865 days ago · 3 km deep · 43 km away
  9. 2.06 km W of Cobb, California · 16865 days ago · 4 km deep · 72 km away
  10. 2.119 km NNE of Upper Lake, California · 16866 days ago · 3 km deep · 40 km away
  11. 2.18 km ENE of Brooktrails, California · 16867 days ago · 8 km deep · 17 km away
  12. 1.78 km WSW of Cobb, California · 16868 days ago · 1 km deep · 73 km away
  13. 1.89 km W of Cobb, California · 16869 days ago · 2 km deep · 70 km away
  14. 2.04 km NNW of Redwood Valley, California · 16870 days ago · 4 km deep · 7 km away
  15. 2.34 km NW of Redwood Valley, California · 16870 days ago · 4 km deep · 7 km away
  16. 1.55 km E of Hopland, California · 16871 days ago · 5 km deep · 46 km away
  17. 1.76 km W of Cobb, California · 16872 days ago · 1 km deep · 73 km away
  18. 1.88 km W of Cobb, California · 16872 days ago · 1 km deep · 71 km away
  19. 3.06 km W of Cobb, California · 16872 days ago · 1 km deep · 73 km away
  20. 2.16 km W of Cobb, California · 16873 days ago · 3 km deep · 72 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1054871. Read Sat, Oct 3, 2026, 8:49 PM UTC.