Alaska earthquakes

M4.2 earthquake 36 km WSW of Atka, Alaska

A magnitude 4.2 earthquake struck 36 km WSW of Atka, Alaska on Fri, May 9, 1986, 4:34 AM HADT (13:34 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M4.9 81 km SSE of Atka, Alaska. This one was a foreshock.

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The earthquake

Magnitude
4.2 (mb), light
Local time
UTC
1986-05-09 13:34:03 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
52.110° N, 174.716° W
Region
Alaska
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.

Depth from
OPERATOR_ASSIGNED

Nearby

Within 100 km, magnitude 1.5 and up: 98 in the 60 days after this one and 84 in the 30 days before it.

After

  1. 4.981 km SSE of Atka, Alaska · 14747 days ago · 33 km deep · 88 km away
  2. 5.981 km S of Atka, Alaska · 14747 days ago · 33 km deep · 79 km away
  3. 5.883 km S of Atka, Alaska · 14747 days ago · 33 km deep · 86 km away
  4. 4.4110 km ESE of Adak, Alaska · 14746 days ago · 33 km deep · 88 km away
  5. 4.882 km S of Atka, Alaska · 14746 days ago · 33 km deep · 76 km away
  6. 5.168 km WSW of Atka, Alaska · 14746 days ago · 33 km deep · 34 km away
  7. 4.570 km SE of Atka, Alaska · 14746 days ago · 33 km deep · 94 km away
  8. 4.840 km SSE of Atka, Alaska · 14746 days ago · 33 km deep · 54 km away
  9. 4.056 km W of Atka, Alaska · 14745 days ago · 33 km deep · 24 km away
  10. 4.777 km SSW of Atka, Alaska · 14745 days ago · 33 km deep · 60 km away
  11. 4.178 km SSW of Atka, Alaska · 14745 days ago · 33 km deep · 57 km away
  12. 4.474 km SE of Atka, Alaska · 14745 days ago · 33 km deep · 97 km away
  13. 4.6104 km SE of Adak, Alaska · 14745 days ago · 33 km deep · 96 km away
  14. 4.481 km SW of Atka, Alaska · 14745 days ago · 33 km deep · 51 km away
  15. 5.383 km SSE of Atka, Alaska · 14745 days ago · 33 km deep · 97 km away
  16. 5.383 km SSE of Atka, Alaska · 14745 days ago · 33 km deep · 97 km away
  17. 5.779 km SSE of Atka, Alaska · 14745 days ago · 33 km deep · 92 km away
  18. 4.872 km S of Atka, Alaska · 14745 days ago · 33 km deep · 71 km away
  19. 5.781 km SSW of Atka, Alaska · 14744 days ago · 33 km deep · 65 km away
  20. 5.5Andreanof Islands, Aleutian Islands, Alaska · 14744 days ago · 33 km deep · 77 km away
  21. 4.940 km WSW of Atka, Alaska · 14744 days ago · 33 km deep · 13 km away
  22. 4.795 km ESE of Adak, Alaska · 14744 days ago · 33 km deep · 91 km away
  23. 4.7106 km SSW of Atka, Alaska · 14744 days ago · 33 km deep · 89 km away
  24. 5.0107 km SSW of Atka, Alaska · 14743 days ago · 33 km deep · 94 km away
  25. 4.380 km SW of Atka, Alaska · 14743 days ago · 33 km deep · 49 km away
  26. 4.785 km SSW of Atka, Alaska · 14743 days ago · 33 km deep · 68 km away
  27. 4.873 km ESE of Adak, Alaska · 14742 days ago · 33 km deep · 94 km away
  28. 4.770 km S of Atka, Alaska · 14742 days ago · 33 km deep · 69 km away
  29. 4.993 km SE of Adak, Alaska · 14741 days ago · 33 km deep · 96 km away
  30. 6.437 km WNW of Atka, Alaska · 14741 days ago · 33 km deep · 20 km away
  31. 5.198 km SSW of Atka, Alaska · 14741 days ago · 33 km deep · 82 km away
  32. 4.726 km W of Atka, Alaska · 14741 days ago · 33 km deep · 13 km away
  33. 4.436 km WSW of Atka, Alaska · 14741 days ago · 33 km deep · 8 km away
  34. 4.338 km SSW of Atka, Alaska · 14741 days ago · 33 km deep · 35 km away
  35. 3.845 km WNW of Atka, Alaska · 14741 days ago · 33 km deep · 26 km away
  36. 4.833 km W of Atka, Alaska · 14741 days ago · 33 km deep · 10 km away
  37. 4.042 km WSW of Atka, Alaska · 14741 days ago · 33 km deep · 8 km away
  38. 4.219 km WSW of Atka, Alaska · 14741 days ago · 33 km deep · 17 km away
  39. 4.122 km WNW of Atka, Alaska · 14741 days ago · 33 km deep · 20 km away
  40. 5.325 km WNW of Atka, Alaska · 14741 days ago · 33 km deep · 26 km away
  41. 5.622 km W of Atka, Alaska · 14741 days ago · 33 km deep · 18 km away
  42. 3.822 km SW of Atka, Alaska · 14741 days ago · 33 km deep · 18 km away
  43. 4.0122 km SSW of Atka, Alaska · 14741 days ago · 33 km deep · 99 km away
  44. 4.098 km SW of Atka, Alaska · 14740 days ago · 33 km deep · 71 km away
  45. 5.082 km WSW of Atka, Alaska · 14740 days ago · 33 km deep · 48 km away
  46. 4.6101 km SW of Atka, Alaska · 14740 days ago · 33 km deep · 74 km away
  47. 4.889 km SW of Atka, Alaska · 14739 days ago · 33 km deep · 59 km away
  48. 6.525 km NW of Atka, Alaska · 14739 days ago · 26 km deep · 28 km away
  49. 4.922 km W of Atka, Alaska · 14739 days ago · 33 km deep · 19 km away
  50. 4.4106 km SSW of Atka, Alaska · 14738 days ago · 33 km deep · 83 km away
  51. 5.192 km SSW of Atka, Alaska · 14738 days ago · 33 km deep · 77 km away
  52. 4.984 km SW of Atka, Alaska · 14738 days ago · 33 km deep · 51 km away
  53. 4.774 km SSW of Atka, Alaska · 14738 days ago · 33 km deep · 55 km away
  54. 4.657 km W of Atka, Alaska · 14737 days ago · 33 km deep · 27 km away
  55. 5.451 km W of Atka, Alaska · 14737 days ago · 33 km deep · 25 km away
  56. 5.048 km W of Atka, Alaska · 14737 days ago · 33 km deep · 23 km away
  57. 4.021 km SW of Atka, Alaska · 14737 days ago · 33 km deep · 20 km away
  58. 3.851 km W of Atka, Alaska · 14737 days ago · 33 km deep · 16 km away
  59. 4.9110 km SSW of Atka, Alaska · 14736 days ago · 33 km deep · 94 km away
  60. 4.0109 km SSW of Atka, Alaska · 14736 days ago · 33 km deep · 85 km away

The first 60 of 98.

Before

  1. 4.726 km S of Atka, Alaska · 14747 days ago · 33 km deep · 43 km away
  2. 4.559 km ESE of Adak, Alaska · 14747 days ago · 33 km deep · 94 km away
  3. 3.976 km SW of Atka, Alaska · 14747 days ago · 33 km deep · 46 km away
  4. 4.876 km ESE of Adak, Alaska · 14747 days ago · 33 km deep · 85 km away
  5. 4.369 km SE of Atka, Alaska · 14747 days ago · 33 km deep · 91 km away
  6. 4.489 km ESE of Adak, Alaska · 14747 days ago · 33 km deep · 86 km away
  7. 5.0Andreanof Islands, Aleutian Islands, Alaska · 14747 days ago · 33 km deep · 86 km away
  8. 4.588 km SSE of Atka, Alaska · 14747 days ago · 33 km deep · 96 km away
  9. 5.141 km SSE of Atka, Alaska · 14747 days ago · 33 km deep · 55 km away
  10. 5.176 km SSE of Atka, Alaska · 14747 days ago · 33 km deep · 84 km away
  11. 4.855 km SSW of Atka, Alaska · 14747 days ago · 33 km deep · 41 km away
  12. 4.492 km SW of Atka, Alaska · 14747 days ago · 33 km deep · 60 km away
  13. 4.896 km SSW of Atka, Alaska · 14747 days ago · 33 km deep · 73 km away
  14. 4.7101 km SW of Atka, Alaska · 14748 days ago · 33 km deep · 74 km away
  15. 4.898 km SW of Atka, Alaska · 14748 days ago · 33 km deep · 70 km away
  16. 5.481 km SSE of Atka, Alaska · 14748 days ago · 33 km deep · 90 km away
  17. 4.993 km ESE of Adak, Alaska · 14748 days ago · 33 km deep · 90 km away
  18. 4.2107 km SSW of Atka, Alaska · 14748 days ago · 33 km deep · 88 km away
  19. 4.994 km ESE of Adak, Alaska · 14748 days ago · 33 km deep · 94 km away
  20. 4.658 km S of Atka, Alaska · 14748 days ago · 33 km deep · 60 km away

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From the USGS Earthquake Hazards Program and its partner networks, event usp0002ttp. Read Wed, Sep 23, 2026, 7:36 AM UTC.