Alaska earthquakes

M2.5 earthquake 90 km W of Adak, Alaska

A magnitude 2.5 earthquake struck 90 km W of Adak, Alaska on Wed, Jan 22, 2020, 8:35 PM HAST (06:35 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M4.7 133 km SW 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
2.5 (ML, local (Richter)), micro
Magnitude from
AV
Local time
UTC
2020-01-23 06:35:07 UTC
Depth
4.0 km (2.5 mi), shallow
Epicenter
51.843° N, 177.951° 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 0.9 km horizontally, 1.4 km in depth
Magnitude uncertainty
±0.21
Depth from
From location
Station coverage gap
161°
Stations used
6

Nearby

Within 100 km, magnitude 1.5 and up: at least 201 in the 60 days after this one and 148 in the 30 days before it.

After

  1. 2.286 km W of Adak, Alaska · 2443 days ago · 6 km deep · 5 km away
  2. 2.690 km W of Adak, Alaska · 2443 days ago · 10 km deep · 13 km away
  3. 2.979 km W of Adak, Alaska · 2443 days ago · 10 km deep · 14 km away
  4. 2.689 km W of Adak, Alaska · 2443 days ago · 2 km deep · 1 km away
  5. 4.183 km W of Adak, Alaska · 2443 days ago · 10 km deep · 8 km away
  6. 4.289 km W of Adak, Alaska · 2443 days ago · 10 km deep · 12 km away
  7. 3.290 km W of Adak, Alaska · 2443 days ago · 10 km deep · 5 km away
  8. 4.189 km W of Adak, Alaska · 2443 days ago · 10 km deep · 2 km away
  9. 3.275 km W of Adak, Alaska · 2443 days ago · 10 km deep · 16 km away
  10. 3.286 km W of Adak, Alaska · 2443 days ago · 10 km deep · 6 km away
  11. 2.589 km W of Adak, Alaska · 2443 days ago · 10 km deep · 4 km away
  12. 2.787 km W of Adak, Alaska · 2443 days ago · 10 km deep · 4 km away
  13. 2.884 km W of Adak, Alaska · 2443 days ago · 5 km deep · 7 km away
  14. 2.489 km W of Adak, Alaska · 2443 days ago · 5 km deep · 2 km away
  15. 2.388 km W of Adak, Alaska · 2443 days ago · 5 km deep · 5 km away
  16. 2.683 km W of Adak, Alaska · 2443 days ago · 10 km deep · 13 km away
  17. 3.889 km W of Adak, Alaska · 2443 days ago · 12 km deep · 2 km away
  18. 3.785 km W of Adak, Alaska · 2443 days ago · 10 km deep · 9 km away
  19. 3.475 km W of Adak, Alaska · 2443 days ago · 10 km deep · 15 km away
  20. 2.481 km W of Adak, Alaska · 2443 days ago · 6 km deep · 10 km away
  21. 2.688 km W of Adak, Alaska · 2443 days ago · 7 km deep · 2 km away
  22. 2.485 km W of Adak, Alaska · 2443 days ago · 7 km deep · 5 km away
  23. 2.486 km W of Adak, Alaska · 2443 days ago · 5 km deep · 5 km away
  24. 2.987 km W of Adak, Alaska · 2443 days ago · 10 km deep · 9 km away
  25. 3.187 km W of Adak, Alaska · 2443 days ago · 10 km deep · 9 km away
  26. 2.389 km W of Adak, Alaska · 2443 days ago · 4 km deep · 2 km away
  27. 2.380 km W of Adak, Alaska · 2443 days ago · 6 km deep · 10 km away
  28. 2.380 km W of Adak, Alaska · 2443 days ago · 4 km deep · 11 km away
  29. 2.684 km W of Adak, Alaska · 2443 days ago · 7 km deep · 7 km away
  30. 2.985 km W of Adak, Alaska · 2443 days ago · 10 km deep · 8 km away
  31. 2.676 km W of Adak, Alaska · 2443 days ago · 4 km deep · 15 km away
  32. 2.484 km W of Adak, Alaska · 2443 days ago · 6 km deep · 6 km away
  33. 1.987 km W of Adak, Alaska · 2443 days ago · -2 km deep · 4 km away
  34. 2.485 km W of Adak, Alaska · 2443 days ago · 3 km deep · 6 km away
  35. 3.874 km W of Adak, Alaska · 2443 days ago · 10 km deep · 16 km away
  36. 2.082 km W of Adak, Alaska · 2443 days ago · 7 km deep · 8 km away
  37. 2.184 km W of Adak, Alaska · 2443 days ago · 5 km deep · 7 km away
  38. 2.574 km W of Adak, Alaska · 2443 days ago · 10 km deep · 17 km away
  39. 2.276 km W of Adak, Alaska · 2443 days ago · 8 km deep · 15 km away
  40. 2.275 km W of Adak, Alaska · 2443 days ago · 6 km deep · 16 km away
  41. 2.3Andreanof Islands, Aleutian Islands, Alaska · 2443 days ago · 4 km deep · 16 km away
  42. 2.172 km W of Adak, Alaska · 2443 days ago · 7 km deep · 18 km away
  43. 2.278 km W of Adak, Alaska · 2443 days ago · 7 km deep · 12 km away
  44. 2.275 km W of Adak, Alaska · 2443 days ago · 8 km deep · 15 km away
  45. 2.185 km W of Adak, Alaska · 2443 days ago · 2 km deep · 5 km away
  46. 2.183 km W of Adak, Alaska · 2443 days ago · 5 km deep · 7 km away
  47. 3.092 km W of Adak, Alaska · 2443 days ago · 10 km deep · 6 km away
  48. 3.976 km W of Adak, Alaska · 2443 days ago · 10 km deep · 17 km away
  49. 2.682 km W of Adak, Alaska · 2443 days ago · 4 km deep · 8 km away
  50. 2.194 km W of Adak, Alaska · 2443 days ago · 4 km deep · 5 km away
  51. 2.992 km W of Adak, Alaska · 2443 days ago · 6 km deep · 2 km away
  52. 2.383 km W of Adak, Alaska · 2443 days ago · 5 km deep · 7 km away
  53. 2.588 km W of Adak, Alaska · 2443 days ago · 7 km deep · 2 km away
  54. 2.182 km W of Adak, Alaska · 2443 days ago · 5 km deep · 8 km away
  55. 2.374 km W of Adak, Alaska · 2443 days ago · 6 km deep · 16 km away
  56. 2.185 km W of Adak, Alaska · 2443 days ago · 7 km deep · 6 km away
  57. 3.285 km W of Adak, Alaska · 2443 days ago · 5 km deep · 6 km away
  58. 3.684 km W of Adak, Alaska · 2443 days ago · 8 km deep · 7 km away
  59. 2.376 km W of Adak, Alaska · 2443 days ago · 7 km deep · 15 km away
  60. 4.085 km W of Adak, Alaska · 2443 days ago · 10 km deep · 10 km away

The first 60 of at least 201.

Before

  1. 3.093 km W of Adak, Alaska · 2443 days ago · 6 km deep · 2 km away
  2. 2.283 km W of Adak, Alaska · 2443 days ago · 6 km deep · 7 km away
  3. 2.687 km W of Adak, Alaska · 2443 days ago · 0 km deep · 10 km away
  4. 2.781 km W of Adak, Alaska · 2443 days ago · 4 km deep · 9 km away
  5. 3.684 km W of Adak, Alaska · 2443 days ago · 10 km deep · 8 km away
  6. 2.792 km W of Adak, Alaska · 2443 days ago · 10 km deep · 3 km away
  7. 2.383 km W of Adak, Alaska · 2443 days ago · 10 km deep · 7 km away
  8. 2.391 km W of Adak, Alaska · 2443 days ago · 6 km deep · 3 km away
  9. 4.087 km W of Adak, Alaska · 2443 days ago · 10 km deep · 16 km away
  10. 2.785 km W of Adak, Alaska · 2443 days ago · 6 km deep · 6 km away
  11. 2.684 km W of Adak, Alaska · 2443 days ago · 10 km deep · 7 km away
  12. 2.691 km W of Adak, Alaska · 2443 days ago · 10 km deep · 3 km away
  13. 2.586 km W of Adak, Alaska · 2443 days ago · 10 km deep · 5 km away
  14. 2.985 km W of Adak, Alaska · 2443 days ago · 10 km deep · 6 km away
  15. 3.184 km W of Adak, Alaska · 2443 days ago · 10 km deep · 7 km away
  16. 2.893 km W of Adak, Alaska · 2443 days ago · 10 km deep · 2 km away
  17. 2.386 km W of Adak, Alaska · 2443 days ago · 6 km deep · 4 km away
  18. 2.682 km W of Adak, Alaska · 2443 days ago · 10 km deep · 9 km away
  19. 2.691 km W of Adak, Alaska · 2443 days ago · 10 km deep · 1 km away
  20. 3.887 km W of Adak, Alaska · 2443 days ago · 10 km deep · 13 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event av62127261. Read Thu, Oct 1, 2026, 3:13 PM UTC.