Alaska earthquakes

M3.9 earthquake 76 km SW of Atka, Alaska

A magnitude 3.9 earthquake struck 76 km SW of Atka, Alaska on Fri, May 9, 1986, 1:17 AM HADT (10:17 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M4.5 59 km ESE of Adak, Alaska. This one was a foreshock.

More in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
3.9 (mb), minor
Local time
UTC
1986-05-09 10:17:30 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.765° N, 175.074° 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: 147 in the 60 days after this one and 52 in the 30 days before it.

After

  1. 4.559 km ESE of Adak, Alaska · 14746 days ago · 33 km deep · 55 km away
  2. 4.587 km SE of Adak, Alaska · 14746 days ago · 33 km deep · 81 km away
  3. 4.883 km SSE of Adak, Alaska · 14746 days ago · 33 km deep · 100 km away
  4. 4.726 km S of Atka, Alaska · 14746 days ago · 33 km deep · 68 km away
  5. 4.236 km WSW of Atka, Alaska · 14746 days ago · 33 km deep · 46 km away
  6. 5.158 km SSE of Adak, Alaska · 14746 days ago · 33 km deep · 85 km away
  7. 4.981 km SSE of Atka, Alaska · 14746 days ago · 33 km deep · 84 km away
  8. 5.981 km S of Atka, Alaska · 14746 days ago · 33 km deep · 67 km away
  9. 5.883 km S of Atka, Alaska · 14746 days ago · 33 km deep · 78 km away
  10. 5.0111 km SE of Adak, Alaska · 14746 days ago · 33 km deep · 76 km away
  11. 4.4110 km ESE of Adak, Alaska · 14746 days ago · 33 km deep · 43 km away
  12. 4.882 km S of Atka, Alaska · 14746 days ago · 33 km deep · 60 km away
  13. 4.383 km SSE of Adak, Alaska · 14746 days ago · 33 km deep · 100 km away
  14. 4.878 km SE of Adak, Alaska · 14746 days ago · 33 km deep · 72 km away
  15. 5.168 km WSW of Atka, Alaska · 14746 days ago · 33 km deep · 15 km away
  16. 4.7116 km SSW of Atka, Alaska · 14745 days ago · 33 km deep · 69 km away
  17. 4.970 km SE of Adak, Alaska · 14745 days ago · 33 km deep · 64 km away
  18. 4.840 km SSE of Atka, Alaska · 14745 days ago · 33 km deep · 70 km away
  19. 4.056 km W of Atka, Alaska · 14745 days ago · 33 km deep · 49 km away
  20. 4.777 km SSW of Atka, Alaska · 14745 days ago · 33 km deep · 34 km away
  21. 4.178 km SSW of Atka, Alaska · 14745 days ago · 33 km deep · 26 km away
  22. 4.6104 km SE of Adak, Alaska · 14745 days ago · 33 km deep · 51 km away
  23. 4.481 km SW of Atka, Alaska · 14745 days ago · 33 km deep · 6 km away
  24. 5.387 km SSE of Adak, Alaska · 14744 days ago · 33 km deep · 97 km away
  25. 5.383 km SSE of Atka, Alaska · 14744 days ago · 33 km deep · 99 km away
  26. 4.523 km SE of Adak, Alaska · 14744 days ago · 33 km deep · 94 km away
  27. 5.779 km SSE of Atka, Alaska · 14744 days ago · 33 km deep · 96 km away
  28. 4.872 km S of Atka, Alaska · 14744 days ago · 33 km deep · 63 km away
  29. 5.781 km SSW of Atka, Alaska · 14744 days ago · 33 km deep · 39 km away
  30. 4.6Andreanof Islands, Aleutian Islands, Alaska · 14744 days ago · 33 km deep · 65 km away
  31. 5.5Andreanof Islands, Aleutian Islands, Alaska · 14744 days ago · 33 km deep · 48 km away
  32. 4.940 km WSW of Atka, Alaska · 14744 days ago · 33 km deep · 36 km away
  33. 4.891 km SSE of Adak, Alaska · 14744 days ago · 33 km deep · 96 km away
  34. 4.750 km SSE of Adak, Alaska · 14744 days ago · 33 km deep · 93 km away
  35. 4.2Andreanof Islands, Aleutian Islands, Alaska · 14743 days ago · 33 km deep · 92 km away
  36. 4.795 km ESE of Adak, Alaska · 14743 days ago · 33 km deep · 46 km away
  37. 3.888 km SSE of Adak, Alaska · 14743 days ago · 33 km deep · 97 km away
  38. 4.7106 km SSW of Atka, Alaska · 14743 days ago · 33 km deep · 54 km away
  39. 5.0107 km SSW of Atka, Alaska · 14743 days ago · 33 km deep · 64 km away
  40. 4.380 km SW of Atka, Alaska · 14743 days ago · 33 km deep · 4 km away
  41. 4.785 km SSW of Atka, Alaska · 14743 days ago · 33 km deep · 39 km away
  42. 4.873 km ESE of Adak, Alaska · 14742 days ago · 33 km deep · 51 km away
  43. 4.770 km S of Atka, Alaska · 14741 days ago · 33 km deep · 61 km away
  44. 4.783 km SE of Adak, Alaska · 14741 days ago · 33 km deep · 66 km away
  45. 4.882 km SE of Adak, Alaska · 14741 days ago · 33 km deep · 70 km away
  46. 4.993 km SE of Adak, Alaska · 14741 days ago · 33 km deep · 50 km away
  47. 6.437 km WNW of Atka, Alaska · 14741 days ago · 33 km deep · 63 km away
  48. 5.198 km SSW of Atka, Alaska · 14741 days ago · 33 km deep · 51 km away
  49. 4.726 km W of Atka, Alaska · 14741 days ago · 33 km deep · 58 km away
  50. 4.436 km WSW of Atka, Alaska · 14741 days ago · 33 km deep · 42 km away
  51. 4.338 km SSW of Atka, Alaska · 14741 days ago · 33 km deep · 49 km away
  52. 3.845 km WNW of Atka, Alaska · 14741 days ago · 33 km deep · 66 km away
  53. 4.833 km W of Atka, Alaska · 14741 days ago · 33 km deep · 55 km away
  54. 4.042 km WSW of Atka, Alaska · 14741 days ago · 33 km deep · 38 km away
  55. 4.219 km WSW of Atka, Alaska · 14741 days ago · 33 km deep · 60 km away
  56. 4.122 km WNW of Atka, Alaska · 14741 days ago · 33 km deep · 66 km away
  57. 5.325 km WNW of Atka, Alaska · 14741 days ago · 33 km deep · 72 km away
  58. 5.622 km W of Atka, Alaska · 14741 days ago · 33 km deep · 63 km away
  59. 3.822 km SW of Atka, Alaska · 14740 days ago · 33 km deep · 54 km away
  60. 4.0122 km SSW of Atka, Alaska · 14740 days ago · 33 km deep · 56 km away

The first 60 of 147.

Before

  1. 4.876 km ESE of Adak, Alaska · 14747 days ago · 33 km deep · 43 km away
  2. 4.489 km ESE of Adak, Alaska · 14747 days ago · 33 km deep · 41 km away
  3. 5.0Andreanof Islands, Aleutian Islands, Alaska · 14747 days ago · 33 km deep · 68 km away
  4. 4.588 km SSE of Atka, Alaska · 14747 days ago · 33 km deep · 92 km away
  5. 4.863 km SSE of Adak, Alaska · 14747 days ago · 33 km deep · 93 km away
  6. 5.141 km SSE of Atka, Alaska · 14747 days ago · 33 km deep · 70 km away
  7. 5.176 km SSE of Atka, Alaska · 14747 days ago · 33 km deep · 83 km away
  8. 4.855 km SSW of Atka, Alaska · 14747 days ago · 33 km deep · 35 km away
  9. 4.492 km SW of Atka, Alaska · 14747 days ago · 33 km deep · 15 km away
  10. 4.5Andreanof Islands, Aleutian Islands, Alaska · 14747 days ago · 33 km deep · 99 km away
  11. 4.896 km SSW of Atka, Alaska · 14747 days ago · 33 km deep · 34 km away
  12. 4.683 km SE of Adak, Alaska · 14747 days ago · 33 km deep · 67 km away
  13. 4.7101 km SW of Atka, Alaska · 14747 days ago · 33 km deep · 29 km away
  14. 4.898 km SW of Atka, Alaska · 14747 days ago · 33 km deep · 25 km away
  15. 5.481 km SSE of Atka, Alaska · 14747 days ago · 33 km deep · 88 km away
  16. 4.993 km ESE of Adak, Alaska · 14747 days ago · 33 km deep · 45 km away
  17. 5.288 km SSE of Adak, Alaska · 14747 days ago · 33 km deep · 96 km away
  18. 4.696 km SE of Adak, Alaska · 14747 days ago · 33 km deep · 65 km away
  19. 4.882 km SSE of Adak, Alaska · 14747 days ago · 33 km deep · 97 km away
  20. 4.2107 km SSW of Atka, Alaska · 14747 days ago · 33 km deep · 52 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002tth. Read Tue, Sep 22, 2026, 9:29 PM UTC.