California earthquakes

M1.7 earthquake 5 km ENE of Redcrest, California

A magnitude 1.7 earthquake struck 5 km ENE of Redcrest, California on Tue, Aug 8, 1978, 5:35 AM PDT (12:35 UTC), 22 km (13 mi) below the surface.

A larger quake followed: M1.8 47 km WNW of Indianola, California. This one was a foreshock.

Scotia 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
1.7 (md), micro
Local time
UTC
1978-08-08 12:35:52 UTC
Depth
21.7 km (13.5 mi), shallow
Epicenter
40.422° N, 123.894° 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 0.6 km horizontally, 0.8 km in depth
Depth from
From location
Station coverage gap
80°
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 186 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 1.523 km NE of Redcrest, California · 17577 days ago · 23 km deep · 19 km away
  2. 1.847 km WNW of Indianola, California · 17577 days ago · 7 km deep · 86 km away
  3. 2.726 km SSW of Ferndale, California · 17577 days ago · 19 km deep · 44 km away
  4. 1.610 km S of Ferndale, California · 17575 days ago · 18 km deep · 33 km away
  5. 1.832 km SW of Ferndale, California · 17574 days ago · 28 km deep · 57 km away
  6. 1.845 km SW of Ferndale, California · 17574 days ago · 21 km deep · 68 km away
  7. 2.823 km SSW of Ferndale, California · 17573 days ago · 30 km deep · 41 km away
  8. 2.113 km SSE of Mad River, California · 17572 days ago · -1 km deep · 37 km away
  9. 2.139 km WSW of Ferndale, California · 17572 days ago · 27 km deep · 66 km away
  10. 2.922 km SSW of Ferndale, California · 17572 days ago · 29 km deep · 41 km away
  11. 1.521 km WNW of Samoa, California · 17572 days ago · 20 km deep · 67 km away
  12. 2.627 km SSW of Ferndale, California · 17571 days ago · 13 km deep · 42 km away
  13. 1.62 km E of Garberville, California · 17570 days ago · 28 km deep · 38 km away
  14. 3.025 km SSW of Ferndale, California · 17570 days ago · 19 km deep · 43 km away
  15. 1.826 km SSW of Ferndale, California · 17570 days ago · 20 km deep · 46 km away
  16. 3.824 km SSW of Ferndale, California · 17570 days ago · 19 km deep · 43 km away
  17. 2.027 km SSW of Ferndale, California · 17570 days ago · 19 km deep · 45 km away
  18. 2.025 km SSW of Ferndale, California · 17570 days ago · 20 km deep · 45 km away
  19. 1.725 km SSW of Ferndale, California · 17570 days ago · 21 km deep · 46 km away
  20. 1.625 km SSW of Ferndale, California · 17570 days ago · 19 km deep · 44 km away
  21. 1.625 km SSW of Ferndale, California · 17570 days ago · 19 km deep · 45 km away
  22. 2.323 km SSW of Ferndale, California · 17570 days ago · 20 km deep · 41 km away
  23. 1.624 km SW of Ferndale, California · 17570 days ago · 20 km deep · 45 km away
  24. 1.626 km SW of Ferndale, California · 17570 days ago · 19 km deep · 47 km away
  25. 2.023 km SSW of Ferndale, California · 17570 days ago · 18 km deep · 42 km away
  26. 1.825 km SSW of Ferndale, California · 17570 days ago · 19 km deep · 43 km away
  27. 1.523 km SSW of Ferndale, California · 17570 days ago · 20 km deep · 40 km away
  28. 2.025 km SSW of Ferndale, California · 17569 days ago · 19 km deep · 44 km away
  29. 3.025 km SSW of Ferndale, California · 17569 days ago · 19 km deep · 44 km away
  30. 1.626 km SW of Ferndale, California · 17569 days ago · 19 km deep · 47 km away
  31. 1.727 km SSW of Ferndale, California · 17569 days ago · 19 km deep · 46 km away
  32. 1.515 km SSW of Ferndale, California · 17569 days ago · 7 km deep · 37 km away
  33. 1.627 km SW of Ferndale, California · 17569 days ago · 19 km deep · 48 km away
  34. 1.89 km S of Ferndale, California · 17569 days ago · 19 km deep · 33 km away
  35. 2.3near the coast of Northern California · 17568 days ago · 19 km deep · 43 km away
  36. 2.0near the coast of Northern California · 17568 days ago · 18 km deep · 21 km away
  37. 1.545 km SW of Ferndale, California · 17567 days ago · 16 km deep · 67 km away
  38. 2.032 km W of Trinidad, California · 17567 days ago · 15 km deep · 86 km away
  39. 2.824 km SSW of Ferndale, California · 17567 days ago · 19 km deep · 41 km away
  40. 1.610 km S of Ferndale, California · 17566 days ago · 18 km deep · 33 km away
  41. 1.530 km WNW of Samoa, California · 17566 days ago · 19 km deep · 76 km away
  42. 1.625 km SW of Ferndale, California · 17566 days ago · 18 km deep · 46 km away
  43. 2.435 km W of Ferndale, California · 17566 days ago · 24 km deep · 67 km away
  44. 2.343 km SW of Ferndale, California · 17566 days ago · 22 km deep · 65 km away
  45. 3.328 km SW of Ferndale, California · 17565 days ago · 23 km deep · 53 km away
  46. 2.828 km SW of Ferndale, California · 17565 days ago · 27 km deep · 52 km away
  47. 2.527 km SW of Ferndale, California · 17565 days ago · 23 km deep · 52 km away
  48. 1.625 km SSW of Ferndale, California · 17565 days ago · 18 km deep · 44 km away
  49. 1.634 km SSW of Ferndale, California · 17564 days ago · 28 km deep · 51 km away
  50. 1.717 km SE of Alderpoint, California · 17564 days ago · -1 km deep · 54 km away
  51. 1.644 km W of Ferndale, California · 17564 days ago · 24 km deep · 77 km away
  52. 1.723 km WSW of Ferndale, California · 17563 days ago · 29 km deep · 54 km away
  53. 1.641 km W of Ferndale, California · 17563 days ago · 22 km deep · 74 km away
  54. 2.233 km SSW of Ferndale, California · 17562 days ago · 19 km deep · 47 km away
  55. 1.919 km S of Ruth, California · 17562 days ago · 3 km deep · 63 km away
  56. 1.824 km SW of Ferndale, California · 17562 days ago · 19 km deep · 46 km away
  57. 1.94 km NE of Redway, California · 17562 days ago · 5 km deep · 32 km away
  58. 2.835 km WSW of Ferndale, California · 17561 days ago · 20 km deep · 64 km away
  59. 1.637 km WSW of Ferndale, California · 17561 days ago · 30 km deep · 66 km away
  60. 1.94 km S of Phillipsville, California · 17560 days ago · 4 km deep · 30 km away

The first 60 of 186.

Before

  1. 1.69 km S of Ferndale, California · 17578 days ago · 18 km deep · 33 km away
  2. 1.831 km SSW of Ferndale, California · 17578 days ago · 19 km deep · 49 km away
  3. 2.142 km SW of Ferndale, California · 17578 days ago · 19 km deep · 63 km away
  4. 1.613 km WNW of Willow Creek, California · 17578 days ago · 22 km deep · 64 km away
  5. 2.36 km S of Ferndale, California · 17578 days ago · 8 km deep · 33 km away
  6. 1.58 km SSW of Scotia, California · 17578 days ago · 25 km deep · 22 km away
  7. 1.79 km S of Ferndale, California · 17579 days ago · 18 km deep · 32 km away
  8. 1.838 km WSW of Ferndale, California · 17580 days ago · 30 km deep · 68 km away
  9. 2.943 km SW of Ferndale, California · 17580 days ago · 19 km deep · 64 km away
  10. 2.2near the coast of Northern California · 17580 days ago · 26 km deep · 45 km away
  11. 2.410 km WNW of Hyampom, California · 17582 days ago · 32 km deep · 37 km away
  12. 1.734 km SSW of Ferndale, California · 17583 days ago · 25 km deep · 51 km away
  13. 2.539 km SW of Ferndale, California · 17583 days ago · 23 km deep · 58 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1041521. Read Wed, Sep 23, 2026, 12:07 AM UTC.