California earthquakes

M2.1 earthquake 9 km NNE of Redcrest, California

A magnitude 2.1 earthquake struck 9 km NNE of Redcrest, California on Sun, Oct 15, 1978, 12:32 AM PDT (07:32 UTC), 22 km (14 mi) below the surface.

A larger quake followed: M4.2 64 km W of Ferndale, California. 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
2.1 (md), micro
Local time
UTC
1978-10-15 07:32:29 UTC
Depth
22.4 km (13.9 mi), shallow
Epicenter
40.487° N, 123.917° 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, 0.5 km in depth
Depth from
From location
Station coverage gap
98°
Stations used
14

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 147 in the 60 days after this one and 96 in the 30 days before it.

After

  1. 1.69 km S of Ferndale, California · 17517 days ago · 18 km deep · 30 km away
  2. 1.64 km NW of McKinleyville, California · 17517 days ago · 20 km deep · 58 km away
  3. 2.643 km WNW of Indianola, California · 17517 days ago · 20 km deep · 77 km away
  4. 3.718 km SW of Ferndale, California · 17517 days ago · 23 km deep · 45 km away
  5. 2.145 km WSW of Ferndale, California · 17514 days ago · 36 km deep · 70 km away
  6. 1.543 km WNW of Samoa, California · 17513 days ago · 13 km deep · 81 km away
  7. 2.112 km S of Ruth, California · 17512 days ago · 2 km deep · 61 km away
  8. 2.926 km SSW of Ferndale, California · 17512 days ago · 19 km deep · 45 km away
  9. 2.726 km SSW of Ferndale, California · 17511 days ago · 19 km deep · 45 km away
  10. 1.726 km SSW of Ferndale, California · 17511 days ago · 19 km deep · 45 km away
  11. 1.626 km SW of Ferndale, California · 17511 days ago · 18 km deep · 48 km away
  12. 1.526 km SSW of Ferndale, California · 17511 days ago · 18 km deep · 45 km away
  13. 1.734 km NW of Shelter Cove, California · 17511 days ago · 5 km deep · 51 km away
  14. 1.524 km WSW of Ferndale, California · 17511 days ago · 24 km deep · 52 km away
  15. 2.868 km W of Ferndale, California · 17511 days ago · 24 km deep · 99 km away
  16. 1.625 km SSW of Ferndale, California · 17511 days ago · 19 km deep · 45 km away
  17. 2.85 km E of Redcrest, California · 17511 days ago · 21 km deep · 11 km away
  18. 1.6Northern California · 17511 days ago · 17 km deep · 11 km away
  19. 1.614 km WSW of Scotia, California · 17510 days ago · 20 km deep · 30 km away
  20. 1.918 km SW of Ferndale, California · 17509 days ago · 25 km deep · 42 km away
  21. 1.514 km WNW of Fields Landing, California · 17509 days ago · 24 km deep · 50 km away
  22. 1.833 km SW of Scotia, California · 17509 days ago · 22 km deep · 47 km away
  23. 1.727 km SW of Scotia, California · 17509 days ago · 7 km deep · 40 km away
  24. 1.68 km S of Ferndale, California · 17508 days ago · 6 km deep · 29 km away
  25. 1.627 km WSW of Ferndale, California · 17506 days ago · 17 km deep · 53 km away
  26. 1.958 km WNW of Indianola, California · 17506 days ago · 7 km deep · 92 km away
  27. 1.726 km SW of Scotia, California · 17506 days ago · 7 km deep · 39 km away
  28. 1.624 km SSW of Ferndale, California · 17504 days ago · 19 km deep · 44 km away
  29. 1.736 km WNW of Samoa, California · 17504 days ago · 13 km deep · 76 km away
  30. 3.327 km SSW of Ferndale, California · 17504 days ago · 19 km deep · 46 km away
  31. 1.727 km SW of Ferndale, California · 17504 days ago · 23 km deep · 47 km away
  32. 3.837 km SW of Ferndale, California · 17503 days ago · 23 km deep · 56 km away
  33. 2.237 km SW of Ferndale, California · 17503 days ago · 22 km deep · 56 km away
  34. 2.136 km SW of Ferndale, California · 17503 days ago · 24 km deep · 54 km away
  35. 1.99 km NE of Mad River, California · 17503 days ago · 38 km deep · 42 km away
  36. 2.117 km WSW of Scotia, California · 17502 days ago · 19 km deep · 32 km away
  37. 1.624 km SW of Scotia, California · 17502 days ago · 26 km deep · 38 km away
  38. 1.921 km W of Indianola, California · 17502 days ago · 23 km deep · 55 km away
  39. 2.63 km WNW of Ferndale, California · 17502 days ago · 21 km deep · 35 km away
  40. 1.625 km WSW of Ferndale, California · 17500 days ago · 17 km deep · 51 km away
  41. 1.940 km SW of Ferndale, California · 17499 days ago · 21 km deep · 61 km away
  42. 1.642 km W of Ferndale, California · 17499 days ago · 21 km deep · 73 km away
  43. 1.724 km SW of Ferndale, California · 17499 days ago · 18 km deep · 50 km away
  44. 1.625 km SSW of Ferndale, California · 17499 days ago · 18 km deep · 45 km away
  45. 2.323 km SW of Ferndale, California · 17499 days ago · 18 km deep · 48 km away
  46. 1.623 km SW of Ferndale, California · 17498 days ago · 17 km deep · 49 km away
  47. 1.614 km WSW of Scotia, California · 17498 days ago · 28 km deep · 29 km away
  48. 2.841 km SW of Ferndale, California · 17498 days ago · 24 km deep · 62 km away
  49. 2.242 km SW of Ferndale, California · 17498 days ago · 22 km deep · 63 km away
  50. 3.040 km SW of Ferndale, California · 17498 days ago · 22 km deep · 61 km away
  51. 2.139 km SSW of Ferndale, California · 17498 days ago · 14 km deep · 56 km away
  52. 2.215 km S of Hayfork, California · 17497 days ago · 21 km deep · 63 km away
  53. 1.78 km NE of Trinity Village, California · 17497 days ago · 22 km deep · 62 km away
  54. 1.816 km WSW of Scotia, California · 17497 days ago · 20 km deep · 32 km away
  55. 1.744 km SW of Ferndale, California · 17496 days ago · 17 km deep · 65 km away
  56. 2.04 km N of Redcrest, California · 17496 days ago · 21 km deep · 6 km away
  57. 2.557 km WNW of Samoa, California · 17496 days ago · 10 km deep · 95 km away
  58. 1.69 km S of Ferndale, California · 17495 days ago · 18 km deep · 29 km away
  59. 1.743 km SW of Ferndale, California · 17495 days ago · 20 km deep · 64 km away
  60. 1.731 km SSW of Ferndale, California · 17495 days ago · 25 km deep · 48 km away

The first 60 of 147.

Before

  1. 1.515 km WSW of Burnt Ranch, California · 17517 days ago · 33 km deep · 37 km away
  2. 1.923 km SSW of Scotia, California · 17518 days ago · 2 km deep · 33 km away
  3. 2.8near the coast of Northern California · 17518 days ago · 22 km deep · 44 km away
  4. 1.634 km WSW of Ferndale, California · 17518 days ago · 16 km deep · 62 km away
  5. 1.6Northern California · 17518 days ago · 32 km deep · 43 km away
  6. 1.612 km S of Ferndale, California · 17519 days ago · 23 km deep · 29 km away
  7. 2.06 km WSW of Samoa, California · 17520 days ago · 24 km deep · 45 km away
  8. 2.712 km E of Hayfork, California · 17520 days ago · 4 km deep · 75 km away
  9. 2.25 km WSW of Hyampom, California · 17520 days ago · 24 km deep · 36 km away
  10. 1.79 km N of Ruth, California · 17520 days ago · 19 km deep · 54 km away
  11. 2.025 km SSW of Ferndale, California · 17521 days ago · 19 km deep · 43 km away
  12. 1.845 km WSW of Ferndale, California · 17521 days ago · 17 km deep · 73 km away
  13. 1.957 km W of Ferndale, California · 17522 days ago · 4 km deep · 86 km away
  14. 2.939 km SW of Ferndale, California · 17523 days ago · 23 km deep · 59 km away
  15. 1.511 km SSW of Ferndale, California · 17523 days ago · 26 km deep · 36 km away
  16. 1.739 km W of Ferndale, California · 17524 days ago · 24 km deep · 69 km away
  17. 1.943 km W of Indianola, California · 17524 days ago · 26 km deep · 75 km away
  18. 1.518 km WSW of Ferndale, California · 17524 days ago · 20 km deep · 45 km away
  19. 1.913 km SSW of Willow Creek, California · 17525 days ago · 8 km deep · 42 km away
  20. 1.822 km SW of Ferndale, California · 17525 days ago · 26 km deep · 46 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1042841. Read Wed, Sep 30, 2026, 4:43 PM UTC.