California earthquakes

M1.8 earthquake 4 km NNE of Hydesville, California

A magnitude 1.8 earthquake struck 4 km NNE of Hydesville, California on Wed, Feb 18, 1981, 11:03 AM PST (19:03 UTC), 14 km (8 mi) below the surface.

A larger quake followed: M2.1 20 km WSW of Weott, 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
1.8 (md), micro
Local time
UTC
1981-02-18 19:03:12 UTC
Depth
13.7 km (8.5 mi), shallow
Epicenter
40.582° N, 124.082° 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 2.9 km horizontally, 3.0 km in depth
Depth from
From location
Station coverage gap
294°, poorly surrounded by stations
Stations used
3

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 152 in the 60 days after this one and 47 in the 30 days before it.

After

  1. 2.120 km WSW of Weott, California · 16652 days ago · 7 km deep · 38 km away
  2. 2.326 km SSW of Ferndale, California · 16652 days ago · 19 km deep · 37 km away
  3. 3.374 km W of Indianola, California · 16651 days ago · 3 km deep · 90 km away
  4. 2.454 km WNW of Ferndale, California · 16651 days ago · 3 km deep · 69 km away
  5. 1.725 km SW of Scotia, California · 16650 days ago · 13 km deep · 35 km away
  6. 2.138 km SW of Ferndale, California · 16650 days ago · 22 km deep · 50 km away
  7. 2.114 km WSW of Mad River, California · 16648 days ago · 27 km deep · 39 km away
  8. 2.45 km WNW of Samoa, California · 16648 days ago · 8 km deep · 31 km away
  9. 2.144 km W of Trinidad, California · 16648 days ago · 4 km deep · 67 km away
  10. 2.161 km WNW of Indianola, California · 16647 days ago · 11 km deep · 78 km away
  11. 2.2Northern California · 16646 days ago · 26 km deep · 40 km away
  12. 1.639 km SW of Ferndale, California · 16646 days ago · 24 km deep · 53 km away
  13. 2.531 km SW of Ferndale, California · 16645 days ago · 39 km deep · 43 km away
  14. 2.343 km SW of Ferndale, California · 16645 days ago · 12 km deep · 54 km away
  15. 2.219 km SW of Scotia, California · 16644 days ago · 16 km deep · 29 km away
  16. 3.230 km W of Indianola, California · 16642 days ago · 50 km deep · 46 km away
  17. 2.617 km W of Big Lagoon, California · 16642 days ago · 29 km deep · 68 km away
  18. 3.023 km WNW of Trinidad, California · 16642 days ago · 18 km deep · 65 km away
  19. 2.06 km NNW of Big Lagoon, California · 16641 days ago · 11 km deep · 71 km away
  20. 2.363 km WSW of Ferndale, California · 16641 days ago · 11 km deep · 79 km away
  21. 2.630 km SW of Scotia, California · 16640 days ago · 23 km deep · 41 km away
  22. 2.540 km W of Big Lagoon, California · 16640 days ago · 5 km deep · 80 km away
  23. 1.951 km W of Trinidad, California · 16638 days ago · 2 km deep · 77 km away
  24. 2.11 km NE of Scotia, California · 16638 days ago · 22 km deep · 10 km away
  25. 1.921 km SW of Ferndale, California · 16638 days ago · 21 km deep · 33 km away
  26. 2.18 km E of Scotia, California · 16637 days ago · 22 km deep · 14 km away
  27. 2.240 km WNW of Shelter Cove, California · 16637 days ago · -1 km deep · 53 km away
  28. 2.712 km WNW of Ferndale, California · 16636 days ago · 12 km deep · 27 km away
  29. 2.06 km NW of Ferndale, California · 16636 days ago · 14 km deep · 20 km away
  30. 2.32 km WNW of Weott, California · 16636 days ago · -1 km deep · 30 km away
  31. 3.534 km SW of Ferndale, California · 16634 days ago · 26 km deep · 48 km away
  32. 1.65 km SSW of Trinidad, California · 16634 days ago · 11 km deep · 49 km away
  33. 3.536 km SW of Ferndale, California · 16633 days ago · 26 km deep · 48 km away
  34. 3.337 km SW of Ferndale, California · 16633 days ago · 27 km deep · 49 km away
  35. 3.136 km SW of Ferndale, California · 16633 days ago · 25 km deep · 49 km away
  36. 2.110 km SW of Ferndale, California · 16633 days ago · 17 km deep · 24 km away
  37. 2.433 km SW of Ferndale, California · 16632 days ago · 38 km deep · 44 km away
  38. 1.81 km NW of McKinleyville, California · 16632 days ago · 4 km deep · 42 km away
  39. 2.06 km NW of Manila, California · 16631 days ago · 12 km deep · 36 km away
  40. 2.1off the coast of Northern California · 16630 days ago · 3 km deep · 97 km away
  41. 2.444 km SW of Ferndale, California · 16629 days ago · 20 km deep · 57 km away
  42. 3.036 km SW of Ferndale, California · 16629 days ago · 27 km deep · 49 km away
  43. 1.735 km SW of Ferndale, California · 16629 days ago · 11 km deep · 48 km away
  44. 2.679 km WSW of Ferndale, California · 16629 days ago · 7 km deep · 95 km away
  45. 3.738 km SW of Ferndale, California · 16629 days ago · 26 km deep · 51 km away
  46. 2.167 km W of Ferndale, California · 16627 days ago · 5 km deep · 83 km away
  47. 3.036 km SW of Ferndale, California · 16627 days ago · 26 km deep · 48 km away
  48. 3.238 km SW of Ferndale, California · 16627 days ago · 25 km deep · 51 km away
  49. 2.03 km NW of Myers Flat, California · 16626 days ago · 28 km deep · 36 km away
  50. 2.838 km SW of Ferndale, California · 16626 days ago · 25 km deep · 52 km away
  51. 1.57 km NNW of Willow Creek, California · 16626 days ago · 28 km deep · 58 km away
  52. 1.715 km ENE of Blue Lake, California · 16624 days ago · 22 km deep · 45 km away
  53. 3.281 km W of Indianola, California · 16624 days ago · 19 km deep · 97 km away
  54. 2.243 km SW of Ferndale, California · 16623 days ago · 24 km deep · 56 km away
  55. 1.92 km N of Humboldt Hill, California · 16623 days ago · 19 km deep · 20 km away
  56. 2.324 km WNW of Samoa, California · 16622 days ago · 4 km deep · 47 km away
  57. 2.417 km WNW of Ferndale, California · 16622 days ago · 26 km deep · 32 km away
  58. 4.015 km W of Ferndale, California · 16621 days ago · 26 km deep · 30 km away
  59. 2.639 km SW of Ferndale, California · 16621 days ago · 25 km deep · 52 km away
  60. 1.511 km W of Mad River, California · 16621 days ago · 0 km deep · 40 km away

The first 60 of 152.

Before

  1. 2.325 km SSW of Ferndale, California · 16652 days ago · 19 km deep · 36 km away
  2. 2.568 km W of Indianola, California · 16653 days ago · 20 km deep · 84 km away
  3. 2.927 km SW of Ferndale, California · 16653 days ago · 25 km deep · 40 km away
  4. 2.840 km SW of Ferndale, California · 16653 days ago · 23 km deep · 54 km away
  5. 2.919 km W of Hyampom, California · 16655 days ago · 27 km deep · 34 km away
  6. 2.113 km WSW of Trinidad, California · 16655 days ago · 9 km deep · 49 km away
  7. 2.232 km WNW of Samoa, California · 16656 days ago · 4 km deep · 54 km away
  8. 4.824 km SE of Klamath, California · 16656 days ago · 42 km deep · 94 km away
  9. 2.313 km SE of Hayfork, California · 16657 days ago · 9 km deep · 86 km away
  10. 2.637 km SW of Ferndale, California · 16657 days ago · 22 km deep · 50 km away
  11. 2.232 km WSW of Ferndale, California · 16657 days ago · 24 km deep · 46 km away
  12. 2.232 km WNW of Samoa, California · 16658 days ago · 4 km deep · 56 km away
  13. 3.153 km W of Ferndale, California · 16658 days ago · 55 km deep · 69 km away
  14. 1.920 km NE of Redcrest, California · 16661 days ago · 8 km deep · 24 km away
  15. 2.941 km SW of Ferndale, California · 16661 days ago · 25 km deep · 54 km away
  16. 2.637 km W of Trinidad, California · 16663 days ago · 19 km deep · 66 km away
  17. 2.549 km SW of Ferndale, California · 16663 days ago · 20 km deep · 62 km away
  18. 2.013 km NE of Fieldbrook, California · 16663 days ago · 5 km deep · 53 km away
  19. 3.02 km N of Fields Landing, California · 16663 days ago · 23 km deep · 21 km away
  20. 2.374 km W of Indianola, California · 16664 days ago · 7 km deep · 90 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1060516. Read Tue, Sep 22, 2026, 4:15 PM UTC.