Alaska earthquakes

M1.8 earthquake 81 km W of Adak, Alaska

A magnitude 1.8 earthquake struck 81 km W of Adak, Alaska on Wed, Jan 22, 2020, 6:39 AM HAST (16:39 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M6.2 84 km W of Adak, Alaska. This one was a foreshock.

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

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The earthquake

Magnitude
1.8 (ML, local (Richter)), micro
Magnitude from
AV
Local time
UTC
2020-01-22 16:39:43 UTC
Depth
6.8 km (4.2 mi), shallow
Epicenter
51.862° N, 177.824° 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.

Location uncertainty
About 0.5 km horizontally, 0.5 km in depth
Magnitude uncertainty
±0.27
Depth from
From location
Station coverage gap
149°
Stations used
11

Nearby

Within 100 km, magnitude 1.5 and up: at least 200 in the 60 days after this one and 94 in the 30 days before it.

After

  1. 1.681 km W of Adak, Alaska · 2444 days ago · 9 km deep · 1 km away
  2. 1.681 km W of Adak, Alaska · 2444 days ago · 8 km deep · 1 km away
  3. 1.680 km W of Adak, Alaska · 2444 days ago · 7 km deep · 1 km away
  4. 1.681 km W of Adak, Alaska · 2444 days ago · 8 km deep · 2 km away
  5. 1.682 km W of Adak, Alaska · 2444 days ago · 11 km deep · 1 km away
  6. 2.581 km W of Adak, Alaska · 2443 days ago · 7 km deep · 0 km away
  7. 2.181 km W of Adak, Alaska · 2443 days ago · 6 km deep · 0 km away
  8. 2.780 km W of Adak, Alaska · 2443 days ago · 7 km deep · 1 km away
  9. 2.481 km W of Adak, Alaska · 2443 days ago · 7 km deep · 1 km away
  10. 1.780 km W of Adak, Alaska · 2443 days ago · 9 km deep · 3 km away
  11. 1.881 km W of Adak, Alaska · 2443 days ago · 7 km deep · 1 km away
  12. 1.581 km W of Adak, Alaska · 2443 days ago · 8 km deep · 2 km away
  13. 1.880 km W of Adak, Alaska · 2443 days ago · 7 km deep · 1 km away
  14. 1.881 km W of Adak, Alaska · 2443 days ago · 7 km deep · 1 km away
  15. 1.981 km W of Adak, Alaska · 2443 days ago · 8 km deep · 1 km away
  16. 1.681 km W of Adak, Alaska · 2443 days ago · 6 km deep · 3 km away
  17. 2.082 km W of Adak, Alaska · 2443 days ago · 9 km deep · 2 km away
  18. 1.782 km W of Adak, Alaska · 2443 days ago · 8 km deep · 0 km away
  19. 1.882 km W of Adak, Alaska · 2443 days ago · 10 km deep · 3 km away
  20. 1.782 km W of Adak, Alaska · 2443 days ago · 9 km deep · 0 km away
  21. 1.881 km W of Adak, Alaska · 2443 days ago · 9 km deep · 1 km away
  22. 3.283 km W of Adak, Alaska · 2443 days ago · 10 km deep · 2 km away
  23. 6.284 km W of Adak, Alaska · 2443 days ago · 10 km deep · 14 km away · felt by 9
  24. 4.180 km W of Adak, Alaska · 2443 days ago · 10 km deep · 6 km away
  25. 3.378 km W of Adak, Alaska · 2443 days ago · 10 km deep · 3 km away
  26. 3.390 km W of Adak, Alaska · 2443 days ago · 10 km deep · 11 km away
  27. 3.2101 km SW of Adak, Alaska · 2443 days ago · 10 km deep · 70 km away
  28. 2.787 km W of Adak, Alaska · 2443 days ago · 8 km deep · 6 km away
  29. 3.082 km W of Adak, Alaska · 2443 days ago · 5 km deep · 2 km away
  30. 3.184 km W of Adak, Alaska · 2443 days ago · 10 km deep · 2 km away
  31. 3.282 km W of Adak, Alaska · 2443 days ago · 10 km deep · 1 km away
  32. 3.576 km W of Adak, Alaska · 2443 days ago · 10 km deep · 12 km away
  33. 3.491 km W of Adak, Alaska · 2443 days ago · 10 km deep · 11 km away
  34. 3.887 km W of Adak, Alaska · 2443 days ago · 10 km deep · 12 km away
  35. 2.691 km W of Adak, Alaska · 2443 days ago · 10 km deep · 10 km away
  36. 2.682 km W of Adak, Alaska · 2443 days ago · 10 km deep · 1 km away
  37. 2.386 km W of Adak, Alaska · 2443 days ago · 6 km deep · 5 km away
  38. 2.893 km W of Adak, Alaska · 2443 days ago · 10 km deep · 11 km away
  39. 3.184 km W of Adak, Alaska · 2443 days ago · 10 km deep · 2 km away
  40. 2.985 km W of Adak, Alaska · 2443 days ago · 10 km deep · 3 km away
  41. 2.586 km W of Adak, Alaska · 2443 days ago · 10 km deep · 5 km away
  42. 2.691 km W of Adak, Alaska · 2443 days ago · 10 km deep · 10 km away
  43. 2.684 km W of Adak, Alaska · 2443 days ago · 10 km deep · 6 km away
  44. 2.785 km W of Adak, Alaska · 2443 days ago · 6 km deep · 4 km away
  45. 4.087 km W of Adak, Alaska · 2443 days ago · 10 km deep · 14 km away
  46. 2.391 km W of Adak, Alaska · 2443 days ago · 6 km deep · 9 km away
  47. 2.383 km W of Adak, Alaska · 2443 days ago · 10 km deep · 2 km away
  48. 2.792 km W of Adak, Alaska · 2443 days ago · 10 km deep · 11 km away
  49. 3.684 km W of Adak, Alaska · 2443 days ago · 10 km deep · 3 km away
  50. 2.781 km W of Adak, Alaska · 2443 days ago · 4 km deep · 2 km away
  51. 2.687 km W of Adak, Alaska · 2443 days ago · 0 km deep · 12 km away
  52. 2.283 km W of Adak, Alaska · 2443 days ago · 6 km deep · 2 km away
  53. 3.093 km W of Adak, Alaska · 2443 days ago · 6 km deep · 11 km away
  54. 2.590 km W of Adak, Alaska · 2443 days ago · 4 km deep · 9 km away
  55. 2.286 km W of Adak, Alaska · 2443 days ago · 6 km deep · 4 km away
  56. 2.690 km W of Adak, Alaska · 2443 days ago · 10 km deep · 14 km away
  57. 2.979 km W of Adak, Alaska · 2443 days ago · 10 km deep · 9 km away
  58. 2.689 km W of Adak, Alaska · 2443 days ago · 2 km deep · 8 km away
  59. 4.183 km W of Adak, Alaska · 2443 days ago · 10 km deep · 3 km away
  60. 4.289 km W of Adak, Alaska · 2443 days ago · 10 km deep · 15 km away

The first 60 of at least 200.

Before

  1. 1.582 km W of Adak, Alaska · 2444 days ago · 7 km deep · 1 km away
  2. 1.681 km W of Adak, Alaska · 2444 days ago · 9 km deep · 2 km away
  3. 1.583 km W of Adak, Alaska · 2444 days ago · 10 km deep · 3 km away
  4. 1.581 km W of Adak, Alaska · 2444 days ago · 8 km deep · 1 km away
  5. 1.581 km W of Adak, Alaska · 2444 days ago · 7 km deep · 1 km away
  6. 1.581 km W of Adak, Alaska · 2444 days ago · 7 km deep · 1 km away
  7. 1.783 km W of Adak, Alaska · 2444 days ago · 12 km deep · 2 km away
  8. 2.681 km W of Adak, Alaska · 2444 days ago · 7 km deep · 1 km away
  9. 1.984 km W of Adak, Alaska · 2444 days ago · 13 km deep · 3 km away
  10. 1.981 km W of Adak, Alaska · 2444 days ago · 7 km deep · 0 km away
  11. 2.982 km W of Adak, Alaska · 2444 days ago · 7 km deep · 0 km away
  12. 1.782 km W of Adak, Alaska · 2444 days ago · 7 km deep · 2 km away
  13. 1.881 km W of Adak, Alaska · 2444 days ago · 8 km deep · 1 km away
  14. 1.881 km W of Adak, Alaska · 2444 days ago · 8 km deep · 0 km away
  15. 1.981 km W of Adak, Alaska · 2444 days ago · 7 km deep · 2 km away
  16. 2.682 km W of Adak, Alaska · 2444 days ago · 10 km deep · 0 km away
  17. 1.883 km W of Adak, Alaska · 2444 days ago · 11 km deep · 2 km away
  18. 2.383 km W of Adak, Alaska · 2444 days ago · 10 km deep · 2 km away
  19. 3.281 km W of Adak, Alaska · 2444 days ago · 8 km deep · 1 km away
  20. 3.382 km W of Adak, Alaska · 2444 days ago · 10 km deep · 9 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event av62126966. Read Thu, Oct 1, 2026, 6:52 AM UTC.