California earthquakes

M2.8 earthquake 6 km ESE of Willits, California

A magnitude 2.8 earthquake struck 6 km ESE of Willits, California on Wed, Sep 6, 1978, 1:21 PM PDT (20:21 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M2.9 10 km WSW of Hopland, 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.

Open the live map with earthquakes

The earthquake

Magnitude
2.8 (md), micro
Local time
UTC
1978-09-06 20:21:11 UTC
Depth
9.8 km (6.1 mi), shallow
Epicenter
39.398° N, 123.283° 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 1.8 km horizontally, 0.9 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
282°, poorly surrounded by stations
Stations used
18

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 55 in the 60 days after this one and 42 in the 30 days before it.

After

  1. 2.37 km WSW of Cobb, California · 17553 days ago · -1 km deep · 78 km away
  2. 2.320 km NE of Potter Valley, California · 17553 days ago · 6 km deep · 30 km away
  3. 2.519 km NE of Potter Valley, California · 17553 days ago · 5 km deep · 29 km away
  4. 1.77 km W of Cobb, California · 17552 days ago · 2 km deep · 76 km away
  5. 2.910 km WSW of Hopland, California · 17550 days ago · 4 km deep · 49 km away
  6. 2.56 km SSW of Clear Lake Riviera, California · 17550 days ago · 3 km deep · 73 km away
  7. 2.22 km ESE of Calpella, California · 17549 days ago · 6 km deep · 22 km away
  8. 1.86 km ENE of Garberville, California · 17548 days ago · 18 km deep · 88 km away
  9. 2.710 km W of Hopland, California · 17548 days ago · 4 km deep · 49 km away
  10. 2.17 km W of Cobb, California · 17548 days ago · 1 km deep · 76 km away
  11. 2.14 km SSE of Cloverdale, California · 17546 days ago · 3 km deep · 74 km away
  12. 1.913 km S of Ruth, California · 17545 days ago · 22 km deep · 84 km away
  13. 1.95 km ENE of Willits, California · 17545 days ago · 6 km deep · 3 km away
  14. 2.08 km E of Sea Ranch, California · 17544 days ago · 21 km deep · 76 km away
  15. 1.65 km SSW of Alderpoint, California · 17543 days ago · 9 km deep · 86 km away
  16. 2.06 km N of Hopland, California · 17541 days ago · 5 km deep · 44 km away
  17. 1.53 km NE of Hopland, California · 17540 days ago · 4 km deep · 48 km away
  18. 2.77 km W of Cobb, California · 17540 days ago · 4 km deep · 77 km away
  19. 1.78 km W of Cobb, California · 17536 days ago · 1 km deep · 75 km away
  20. 2.116 km ENE of Lower Lake, California · 17536 days ago · 3 km deep · 88 km away
  21. 1.811 km NNW of Redwood Valley, California · 17534 days ago · 6 km deep · 6 km away
  22. 1.710 km WNW of Potter Valley, California · 17534 days ago · 4 km deep · 6 km away
  23. 1.811 km WNW of Potter Valley, California · 17534 days ago · 4 km deep · 6 km away
  24. 1.67 km E of Willits, California · 17531 days ago · 5 km deep · 2 km away
  25. 1.98 km W of Cobb, California · 17531 days ago · 1 km deep · 76 km away
  26. 2.48 km WSW of Cobb, California · 17530 days ago · 0 km deep · 78 km away
  27. 1.74 km ESE of Calpella, California · 17529 days ago · 3 km deep · 22 km away
  28. 2.14 km WSW of Cobb, California · 17526 days ago · 1 km deep · 79 km away
  29. 2.210 km NW of Cobb, California · 17524 days ago · 3 km deep · 70 km away
  30. 2.68 km W of Cobb, California · 17523 days ago · 1 km deep · 76 km away
  31. 1.811 km NE of Brooktrails, California · 17523 days ago · 5 km deep · 12 km away
  32. 2.32 km SE of Clear Lake Riviera, California · 17521 days ago · 1 km deep · 72 km away
  33. 2.29 km ESE of Willits, California · 17518 days ago · 8 km deep · 4 km away
  34. 2.7Northern California · 17516 days ago · 4 km deep · 78 km away
  35. 1.77 km WSW of Cobb, California · 17514 days ago · 1 km deep · 77 km away
  36. 2.27 km W of Cobb, California · 17513 days ago · 0 km deep · 77 km away
  37. 1.57 km ESE of Geyserville, California · 17513 days ago · 6 km deep · 89 km away
  38. 2.09 km ESE of Willits, California · 17513 days ago · 8 km deep · 4 km away
  39. 2.06 km ENE of Willits, California · 17512 days ago · 11 km deep · 3 km away
  40. 1.98 km W of Cobb, California · 17512 days ago · 0 km deep · 77 km away
  41. 1.88 km W of Cobb, California · 17512 days ago · 1 km deep · 77 km away
  42. 1.57 km SE of Boonville, California · 17511 days ago · 4 km deep · 48 km away
  43. 2.112 km S of Ruth, California · 17510 days ago · 2 km deep · 85 km away
  44. 2.36 km W of Cobb, California · 17510 days ago · 4 km deep · 76 km away
  45. 1.5Northern California · 17509 days ago · 4 km deep · 77 km away
  46. 2.17 km WSW of Cobb, California · 17509 days ago · 0 km deep · 78 km away
  47. 1.87 km W of Cobb, California · 17509 days ago · 3 km deep · 76 km away
  48. 2.512 km N of Brooktrails, California · 17507 days ago · -1 km deep · 19 km away
  49. 2.08 km E of Willits, California · 17504 days ago · 10 km deep · 2 km away
  50. 2.16 km WSW of Cobb, California · 17504 days ago · 0 km deep · 78 km away
  51. 2.16 km NE of Willits, California · 17502 days ago · 5 km deep · 5 km away
  52. 2.711 km ENE of Cleone, California · 17501 days ago · 12 km deep · 35 km away
  53. 2.513 km WNW of Brooktrails, California · 17500 days ago · 12 km deep · 24 km away
  54. 1.73 km SE of Calpella, California · 17498 days ago · 2 km deep · 22 km away
  55. 2.16 km W of Cobb, California · 17497 days ago · 2 km deep · 76 km away

Before

  1. 2.57 km ESE of Willits, California · 17555 days ago · 5 km deep · 1 km away
  2. 2.66 km E of Willits, California · 17556 days ago · 14 km deep · 1 km away
  3. 2.77 km W of Cobb, California · 17558 days ago · 3 km deep · 77 km away
  4. 1.69 km ESE of Willits, California · 17558 days ago · 4 km deep · 4 km away
  5. 2.39 km ESE of Willits, California · 17559 days ago · 3 km deep · 4 km away
  6. 1.99 km ESE of Willits, California · 17559 days ago · 4 km deep · 4 km away
  7. 2.69 km ESE of Willits, California · 17559 days ago · 2 km deep · 4 km away
  8. 2.19 km ESE of Willits, California · 17559 days ago · 4 km deep · 4 km away
  9. 1.79 km ESE of Willits, California · 17559 days ago · 4 km deep · 4 km away
  10. 1.98 km E of Willits, California · 17560 days ago · 4 km deep · 3 km away
  11. 2.27 km W of Cobb, California · 17561 days ago · 3 km deep · 76 km away
  12. 2.07 km W of Cobb, California · 17561 days ago · 3 km deep · 76 km away
  13. 1.88 km E of Hopland, California · 17561 days ago · 6 km deep · 52 km away
  14. 2.00 km NNE of Garberville, California · 17564 days ago · 9 km deep · 90 km away
  15. 2.21 km SSW of Garberville, California · 17565 days ago · 11 km deep · 88 km away
  16. 2.08 km ENE of Benbow, California · 17567 days ago · 14 km deep · 84 km away
  17. 1.94 km S of Phillipsville, California · 17567 days ago · 4 km deep · 96 km away
  18. 1.98 km WSW of Cobb, California · 17567 days ago · 3 km deep · 78 km away
  19. 2.37 km WSW of Cobb, California · 17567 days ago · 1 km deep · 78 km away
  20. 1.53 km ENE of Calpella, California · 17568 days ago · 5 km deep · 20 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1042160. Read Tue, Sep 29, 2026, 8:22 AM UTC.