Alaska earthquakes

M1.8 earthquake 89 km W of Adak, Alaska

A magnitude 1.8 earthquake struck 89 km W of Adak, Alaska on Thu, Feb 27, 2020, 9:58 PM HAST (07:58 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M5.0 71 km WNW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
1.8 (ml), micro
Local time
UTC
2020-02-28 07:58:27 UTC
Depth
4.8 km (3.0 mi), shallow
Epicenter
51.843° N, 177.926° 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.

Stations used
21

Nearby

Within 100 km, magnitude 1.5 and up: 187 in the 60 days after this one and at least 200 in the 30 days before it.

After

  1. 1.638 km SSW of Adak, Alaska · 2407 days ago · 13 km deep · 77 km away
  2. 1.680 km W of Adak, Alaska · 2405 days ago · 7 km deep · 8 km away
  3. 1.788 km W of Adak, Alaska · 2405 days ago · 4 km deep · 1 km away
  4. 4.051 km WSW of Adak, Alaska · 2404 days ago · 75 km deep · 49 km away
  5. 1.887 km W of Adak, Alaska · 2403 days ago · 3 km deep · 2 km away
  6. 2.1129 km WSW of Adak, Alaska · 2403 days ago · 66 km deep · 49 km away
  7. 1.787 km W of Adak, Alaska · 2403 days ago · 5 km deep · 2 km away
  8. 1.782 km W of Adak, Alaska · 2402 days ago · 7 km deep · 7 km away
  9. 3.466 km SSW of Adak, Alaska · 2402 days ago · 35 km deep · 74 km away
  10. 1.9129 km WSW of Adak, Alaska · 2402 days ago · 71 km deep · 49 km away
  11. 1.565 km SSW of Adak, Alaska · 2402 days ago · 26 km deep · 88 km away
  12. 1.777 km W of Adak, Alaska · 2402 days ago · 11 km deep · 12 km away
  13. 1.980 km W of Adak, Alaska · 2402 days ago · 10 km deep · 8 km away
  14. 2.6132 km SW of Adak, Alaska · 2402 days ago · 32 km deep · 81 km away
  15. 2.2125 km SW of Adak, Alaska · 2402 days ago · 26 km deep · 70 km away
  16. 1.8129 km SW of Adak, Alaska · 2402 days ago · 20 km deep · 75 km away
  17. 2.1133 km WSW of Adak, Alaska · 2402 days ago · 7 km deep · 47 km away
  18. 1.8109 km SW of Adak, Alaska · 2402 days ago · 28 km deep · 72 km away
  19. 1.8119 km SW of Adak, Alaska · 2402 days ago · 18 km deep · 71 km away
  20. 1.879 km W of Adak, Alaska · 2402 days ago · 1 km deep · 10 km away
  21. 1.981 km W of Adak, Alaska · 2401 days ago · 11 km deep · 9 km away
  22. 2.079 km W of Adak, Alaska · 2401 days ago · 5 km deep · 9 km away
  23. 1.7Andreanof Islands, Aleutian Islands, Alaska · 2401 days ago · 3 km deep · 10 km away
  24. 1.686 km WSW of Adak, Alaska · 2399 days ago · 10 km deep · 36 km away
  25. 1.677 km W of Adak, Alaska · 2399 days ago · 11 km deep · 12 km away
  26. 1.561 km SW of Adak, Alaska · 2399 days ago · 18 km deep · 54 km away
  27. 1.785 km SW of Adak, Alaska · 2398 days ago · 26 km deep · 47 km away
  28. 1.956 km SW of Adak, Alaska · 2398 days ago · 49 km deep · 71 km away
  29. 3.460 km SSW of Adak, Alaska · 2398 days ago · 39 km deep · 77 km away
  30. 2.8Andreanof Islands, Aleutian Islands, Alaska · 2398 days ago · 33 km deep · 83 km away
  31. 1.656 km SSW of Adak, Alaska · 2398 days ago · 30 km deep · 75 km away
  32. 2.0176 km WSW of Adak, Alaska · 2398 days ago · 26 km deep · 98 km away
  33. 1.674 km WSW of Adak, Alaska · 2398 days ago · 18 km deep · 45 km away
  34. 1.9127 km WSW of Adak, Alaska · 2397 days ago · 9 km deep · 42 km away
  35. 2.2158 km WSW of Adak, Alaska · 2396 days ago · 13 km deep · 79 km away
  36. 1.678 km W of Adak, Alaska · 2396 days ago · 6 km deep · 11 km away
  37. 2.350 km W of Adak, Alaska · 2396 days ago · 94 km deep · 39 km away
  38. 1.945 km S of Adak, Alaska · 2396 days ago · 38 km deep · 91 km away
  39. 2.965 km SSW of Adak, Alaska · 2395 days ago · 36 km deep · 85 km away
  40. 1.763 km SSW of Adak, Alaska · 2395 days ago · 43 km deep · 85 km away
  41. 3.127 km SSW of Adak, Alaska · 2395 days ago · 60 km deep · 86 km away
  42. 1.789 km SW of Adak, Alaska · 2395 days ago · 22 km deep · 49 km away
  43. 1.759 km SSW of Adak, Alaska · 2395 days ago · 32 km deep · 95 km away
  44. 1.9128 km WSW of Adak, Alaska · 2395 days ago · 36 km deep · 65 km away
  45. 2.9136 km W of Adak, Alaska · 2395 days ago · 175 km deep · 55 km away
  46. 1.578 km W of Adak, Alaska · 2394 days ago · 6 km deep · 10 km away
  47. 1.743 km SSW of Adak, Alaska · 2394 days ago · 30 km deep · 84 km away
  48. 1.678 km W of Adak, Alaska · 2394 days ago · 4 km deep · 11 km away
  49. 2.178 km W of Adak, Alaska · 2394 days ago · 3 km deep · 11 km away
  50. 1.778 km W of Adak, Alaska · 2394 days ago · 4 km deep · 11 km away
  51. 1.8Andreanof Islands, Aleutian Islands, Alaska · 2394 days ago · 9 km deep · 10 km away
  52. 2.775 km SW of Adak, Alaska · 2394 days ago · 48 km deep · 50 km away
  53. 1.6Andreanof Islands, Aleutian Islands, Alaska · 2393 days ago · 8 km deep · 7 km away
  54. 2.0Andreanof Islands, Aleutian Islands, Alaska · 2393 days ago · 83 km deep · 75 km away
  55. 1.779 km W of Adak, Alaska · 2393 days ago · 5 km deep · 10 km away
  56. 2.764 km S of Adak, Alaska · 2392 days ago · 31 km deep · 100 km away
  57. 1.680 km W of Adak, Alaska · 2392 days ago · 5 km deep · 9 km away
  58. 1.765 km WSW of Adak, Alaska · 2392 days ago · 60 km deep · 38 km away
  59. 2.3127 km WSW of Adak, Alaska · 2391 days ago · 24 km deep · 63 km away
  60. 3.0115 km WSW of Adak, Alaska · 2390 days ago · 28 km deep · 53 km away

The first 60 of 187.

Before

  1. 3.688 km W of Adak, Alaska · 2407 days ago · 11 km deep · 6 km away
  2. 1.6107 km WSW of Adak, Alaska · 2407 days ago · 27 km deep · 42 km away
  3. 1.662 km SW of Adak, Alaska · 2408 days ago · 39 km deep · 51 km away
  4. 1.9130 km SW of Adak, Alaska · 2408 days ago · 22 km deep · 74 km away
  5. 1.659 km SSW of Adak, Alaska · 2408 days ago · 32 km deep · 85 km away
  6. 1.983 km W of Adak, Alaska · 2408 days ago · 9 km deep · 6 km away
  7. 1.780 km W of Adak, Alaska · 2409 days ago · 6 km deep · 9 km away
  8. 1.678 km W of Adak, Alaska · 2409 days ago · 7 km deep · 11 km away
  9. 1.777 km W of Adak, Alaska · 2409 days ago · 7 km deep · 12 km away
  10. 2.284 km W of Adak, Alaska · 2409 days ago · 6 km deep · 5 km away
  11. 1.6Andreanof Islands, Aleutian Islands, Alaska · 2409 days ago · 10 km deep · 2 km away
  12. 2.657 km SSW of Adak, Alaska · 2410 days ago · 35 km deep · 76 km away
  13. 2.0154 km WSW of Adak, Alaska · 2410 days ago · 25 km deep · 88 km away
  14. 3.362 km SSW of Adak, Alaska · 2410 days ago · 10 km deep · 79 km away
  15. 1.789 km WSW of Adak, Alaska · 2410 days ago · 25 km deep · 39 km away
  16. 3.725 km WNW of Adak, Alaska · 2410 days ago · 103 km deep · 68 km away
  17. 3.4137 km WSW of Adak, Alaska · 2411 days ago · 34 km deep · 72 km away
  18. 1.867 km WSW of Adak, Alaska · 2411 days ago · 68 km deep · 28 km away
  19. 2.1118 km WSW of Adak, Alaska · 2411 days ago · 58 km deep · 46 km away
  20. 2.282 km W of Adak, Alaska · 2411 days ago · 8 km deep · 6 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0202pp802z (also filed as av62141236). Read Thu, Oct 1, 2026, 1:27 AM UTC.