California earthquakes

M2.2 earthquake 9 km ESE of Hyampom, California

A magnitude 2.2 earthquake struck 9 km ESE of Hyampom, California on Thu, May 7, 1981, 11:27 AM PDT (18:27 UTC), 21 km (13 mi) below the surface.

A larger quake followed: M3.0 28 km N of Willow Creek, 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
2.2 (md), micro
Local time
UTC
1981-05-07 18:27:04 UTC
Depth
21.0 km (13.1 mi), shallow
Epicenter
40.588° N, 123.352° 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 1.2 km horizontally, 1.7 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
211°, poorly surrounded by stations
Stations used
19

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 123 in the 60 days after this one and 45 in the 30 days before it.

After

  1. 2.122 km W of Ferndale, California · 16574 days ago · 21 km deep · 99 km away
  2. 2.110 km NNE of Covelo, California · 16573 days ago · 9 km deep · 79 km away
  3. 2.230 km SW of Scotia, California · 16572 days ago · 18 km deep · 91 km away
  4. 3.028 km N of Willow Creek, California · 16571 days ago · 39 km deep · 69 km away
  5. 1.816 km ENE of Redcrest, California · 16570 days ago · 0 km deep · 39 km away
  6. 1.629 km SW of Scotia, California · 16569 days ago · 27 km deep · 90 km away
  7. 2.122 km W of Indianola, California · 16568 days ago · 20 km deep · 98 km away
  8. 2.35 km SW of Phillipsville, California · 16568 days ago · 19 km deep · 61 km away
  9. 2.23 km W of Blue Lake, California · 16568 days ago · 0 km deep · 65 km away
  10. 1.729 km SSW of Ferndale, California · 16567 days ago · 35 km deep · 96 km away
  11. 2.48 km NE of Mad River, California · 16567 days ago · 0 km deep · 12 km away
  12. 2.425 km SSW of Ferndale, California · 16567 days ago · 32 km deep · 91 km away
  13. 1.625 km SW of Scotia, California · 16567 days ago · 29 km deep · 88 km away
  14. 2.825 km SW of Ferndale, California · 16567 days ago · 27 km deep · 98 km away
  15. 1.733 km SW of Etna, California · 16567 days ago · 4 km deep · 77 km away
  16. 1.71 km NE of Humboldt Hill, California · 16566 days ago · 1 km deep · 71 km away
  17. 1.73 km W of Scotia, California · 16566 days ago · 20 km deep · 68 km away
  18. 2.214 km WSW of Trinidad, California · 16566 days ago · 5 km deep · 92 km away
  19. 1.811 km W of Indianola, California · 16566 days ago · 12 km deep · 87 km away
  20. 2.911 km W of Indianola, California · 16566 days ago · 11 km deep · 87 km away
  21. 1.88 km WNW of Indianola, California · 16564 days ago · 4 km deep · 83 km away
  22. 2.12 km NW of Willow Creek, California · 16563 days ago · 5 km deep · 48 km away
  23. 2.47 km NNW of Manila, California · 16563 days ago · 6 km deep · 79 km away
  24. 2.23 km NNW of Redway, California · 16563 days ago · 17 km deep · 63 km away
  25. 3.4Northern California · 16562 days ago · 41 km deep · 61 km away
  26. 2.916 km SW of Mad River, California · 16560 days ago · 21 km deep · 36 km away
  27. 2.917 km SW of Mad River, California · 16560 days ago · 22 km deep · 37 km away
  28. 1.816 km NE of Miranda, California · 16560 days ago · 20 km deep · 39 km away
  29. 2.216 km SW of Mad River, California · 16560 days ago · 22 km deep · 37 km away
  30. 1.57 km SSW of Mad River, California · 16560 days ago · 27 km deep · 27 km away
  31. 2.117 km SW of Mad River, California · 16559 days ago · 21 km deep · 37 km away
  32. 1.617 km ENE of Hydesville, California · 16559 days ago · 21 km deep · 48 km away
  33. 2.417 km SW of Mad River, California · 16559 days ago · 21 km deep · 38 km away
  34. 2.83 km SSW of Scotia, California · 16558 days ago · 9 km deep · 67 km away
  35. 2.911 km S of Scotia, California · 16558 days ago · 12 km deep · 68 km away
  36. 1.914 km NE of Hydesville, California · 16556 days ago · 24 km deep · 51 km away
  37. 1.9Northern California · 16556 days ago · 22 km deep · 43 km away
  38. 3.523 km SSW of Ferndale, California · 16555 days ago · 27 km deep · 92 km away
  39. 2.224 km SW of Ferndale, California · 16555 days ago · 27 km deep · 95 km away
  40. 2.1near the coast of Northern California · 16555 days ago · 31 km deep · 94 km away
  41. 2.015 km SSW of Ferndale, California · 16554 days ago · 28 km deep · 82 km away
  42. 3.013 km W of Ruth, California · 16553 days ago · 22 km deep · 38 km away
  43. 2.27 km E of Hyampom, California · 16552 days ago · 4 km deep · 4 km away
  44. 3.711 km SW of Willow Creek, California · 16551 days ago · 28 km deep · 46 km away
  45. 2.322 km WSW of Weott, California · 16550 days ago · 1 km deep · 79 km away
  46. 1.616 km WNW of Samoa, California · 16549 days ago · 22 km deep · 91 km away
  47. 1.631 km SW of Ferndale, California · 16549 days ago · 34 km deep · 99 km away
  48. 2.225 km SW of Ferndale, California · 16548 days ago · 19 km deep · 96 km away
  49. 2.225 km SSW of Ferndale, California · 16548 days ago · 27 km deep · 94 km away
  50. 2.610 km WNW of Fields Landing, California · 16547 days ago · 25 km deep · 84 km away
  51. 1.57 km WNW of McKinleyville, California · 16546 days ago · 20 km deep · 82 km away
  52. 1.92 km S of Lakehead, California · 16546 days ago · 3 km deep · 88 km away
  53. 2.421 km WNW of Ferndale, California · 16545 days ago · 24 km deep · 97 km away
  54. 2.96 km NE of Miranda, California · 16544 days ago · 28 km deep · 49 km away
  55. 2.0Northern California · 16543 days ago · 20 km deep · 61 km away
  56. 1.718 km WSW of Scotia, California · 16543 days ago · 28 km deep · 82 km away
  57. 2.414 km WNW of Fields Landing, California · 16543 days ago · 24 km deep · 88 km away
  58. 2.314 km SSW of Ferndale, California · 16542 days ago · 23 km deep · 83 km away
  59. 1.633 km SSW of Ferndale, California · 16542 days ago · 24 km deep · 99 km away
  60. 1.513 km NE of Fieldbrook, California · 16542 days ago · 5 km deep · 68 km away

The first 60 of 123.

Before

  1. 1.816 km E of Hydesville, California · 16578 days ago · 92 km deep · 46 km away
  2. 2.20 km SE of Trinity Village, California · 16578 days ago · 5 km deep · 35 km away
  3. 1.69 km W of Mad River, California · 16578 days ago · 4 km deep · 28 km away
  4. 1.522 km SSW of Ferndale, California · 16578 days ago · 21 km deep · 88 km away
  5. 1.914 km WSW of Ferndale, California · 16579 days ago · 19 km deep · 90 km away
  6. 1.811 km SW of Ferndale, California · 16580 days ago · 25 km deep · 87 km away
  7. 1.95 km WNW of Laytonville, California · 16583 days ago · 2 km deep · 99 km away
  8. 2.56 km NW of Redcrest, California · 16583 days ago · -1 km deep · 58 km away
  9. 1.67 km S of Ferndale, California · 16585 days ago · 17 km deep · 78 km away
  10. 1.610 km S of Scotia, California · 16586 days ago · 36 km deep · 68 km away
  11. 2.84 km NW of Redway, California · 16586 days ago · 19 km deep · 65 km away
  12. 2.220 km WSW of Weott, California · 16586 days ago · 11 km deep · 77 km away
  13. 1.77 km NE of Mad River, California · 16587 days ago · 30 km deep · 13 km away
  14. 2.022 km WSW of Ferndale, California · 16587 days ago · 24 km deep · 97 km away
  15. 2.428 km SW of Ferndale, California · 16588 days ago · 18 km deep · 97 km away
  16. 2.536 km SSW of Ferndale, California · 16589 days ago · 25 km deep · 100 km away
  17. 1.69 km WNW of Mad River, California · 16589 days ago · 5 km deep · 26 km away
  18. 2.24 km SW of Loleta, California · 16590 days ago · 19 km deep · 77 km away
  19. 2.220 km SSW of Scotia, California · 16590 days ago · 4 km deep · 77 km away
  20. 1.830 km SW of Scotia, California · 16591 days ago · 13 km deep · 91 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1063385. Read Tue, Sep 22, 2026, 9:43 PM UTC.