Alaska earthquakes

M1.8 earthquake 77 km W of Adak, Alaska

A magnitude 1.8 earthquake struck 77 km W of Adak, Alaska on Wed, Feb 12, 2020, 6:18 AM HAST (16:18 UTC), 6 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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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
Alaska Earthquake Center
Local time
UTC
2020-02-12 16:18:31 UTC
Depth
5.6 km (3.5 mi), shallow
Epicenter
51.845° N, 177.753° 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
25

Nearby

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

After

  1. 2.0Andreanof Islands, Aleutian Islands, Alaska · 2424 days ago · 7 km deep · 2 km away
  2. 1.882 km W of Adak, Alaska · 2424 days ago · 12 km deep · 5 km away
  3. 1.688 km W of Adak, Alaska · 2424 days ago · 3 km deep · 11 km away
  4. 1.988 km W of Adak, Alaska · 2424 days ago · 7 km deep · 12 km away
  5. 1.678 km W of Adak, Alaska · 2424 days ago · 3 km deep · 2 km away
  6. 1.888 km W of Adak, Alaska · 2424 days ago · 6 km deep · 12 km away
  7. 2.188 km W of Adak, Alaska · 2424 days ago · 3 km deep · 11 km away
  8. 2.087 km W of Adak, Alaska · 2424 days ago · 7 km deep · 10 km away
  9. 2.786 km W of Adak, Alaska · 2424 days ago · 9 km deep · 9 km away
  10. 2.087 km W of Adak, Alaska · 2424 days ago · 6 km deep · 10 km away
  11. 2.194 km W of Adak, Alaska · 2424 days ago · 4 km deep · 17 km away
  12. 1.788 km W of Adak, Alaska · 2423 days ago · 5 km deep · 12 km away
  13. 1.741 km W of Adak, Alaska · 2423 days ago · 7 km deep · 36 km away
  14. 2.179 km W of Adak, Alaska · 2423 days ago · 7 km deep · 3 km away
  15. 1.680 km W of Adak, AK · 2423 days ago · 7 km deep · 3 km away
  16. 1.977 km W of Adak, Alaska · 2423 days ago · 9 km deep · 3 km away
  17. 2.178 km W of Adak, Alaska · 2423 days ago · 7 km deep · 3 km away
  18. 2.657 km WSW of Adak, Alaska · 2422 days ago · 79 km deep · 23 km away
  19. 1.988 km W of Adak, Alaska · 2422 days ago · 6 km deep · 11 km away
  20. 1.980 km W of Adak, Alaska · 2422 days ago · 10 km deep · 3 km away
  21. 1.679 km W of Adak, Alaska · 2422 days ago · 10 km deep · 2 km away
  22. 1.780 km W of Adak, Alaska · 2422 days ago · 7 km deep · 3 km away
  23. 1.878 km W of Adak, Alaska · 2422 days ago · 3 km deep · 2 km away
  24. 1.878 km W of Adak, Alaska · 2421 days ago · 11 km deep · 3 km away
  25. 1.879 km W of Adak, Alaska · 2421 days ago · 7 km deep · 4 km away
  26. 1.680 km W of Adak, Alaska · 2421 days ago · 9 km deep · 4 km away
  27. 1.590 km WSW of Adak, Alaska · 2421 days ago · 13 km deep · 40 km away
  28. 1.9134 km WSW of Adak, Alaska · 2421 days ago · 24 km deep · 75 km away
  29. 2.664 km WSW of Adak, Alaska · 2420 days ago · 67 km deep · 36 km away
  30. 2.1134 km WSW of Adak, Alaska · 2420 days ago · 25 km deep · 72 km away
  31. 1.840 km W of Adak, Alaska · 2420 days ago · 6 km deep · 37 km away
  32. 1.975 km WSW of Adak, Alaska · 2420 days ago · 26 km deep · 34 km away
  33. 4.7133 km SW of Adak, Alaska · 2420 days ago · 35 km deep · 83 km away
  34. 2.9126 km WSW of Adak, Alaska · 2420 days ago · 28 km deep · 68 km away
  35. 1.979 km W of Adak, Alaska · 2420 days ago · 9 km deep · 4 km away
  36. 1.879 km W of Adak, Alaska · 2419 days ago · 5 km deep · 2 km away
  37. 2.0132 km SW of Adak, Alaska · 2419 days ago · 22 km deep · 80 km away
  38. 2.1Andreanof Islands, Aleutian Islands, Alaska · 2419 days ago · 26 km deep · 75 km away
  39. 1.7Andreanof Islands, Aleutian Islands, Alaska · 2419 days ago · 6 km deep · 2 km away
  40. 2.082 km W of Adak, Alaska · 2418 days ago · 9 km deep · 5 km away
  41. 1.983 km W of Adak, Alaska · 2418 days ago · 7 km deep · 6 km away
  42. 1.881 km W of Adak, Alaska · 2418 days ago · 8 km deep · 5 km away
  43. 3.163 km SSW of Adak, Alaska · 2418 days ago · 35 km deep · 84 km away
  44. 2.284 km W of Adak, Alaska · 2418 days ago · 5 km deep · 7 km away
  45. 1.677 km W of Adak, Alaska · 2418 days ago · 6 km deep · 1 km away
  46. 1.5123 km W of Adak, Alaska · 2418 days ago · 5 km deep · 47 km away
  47. 1.982 km W of Adak, Alaska · 2418 days ago · 8 km deep · 6 km away
  48. 2.686 km WSW of Adak, Alaska · 2418 days ago · 70 km deep · 29 km away
  49. 1.984 km W of Adak, Alaska · 2418 days ago · 10 km deep · 7 km away
  50. 1.988 km W of Adak, Alaska · 2418 days ago · 3 km deep · 11 km away
  51. 1.9132 km WSW of Adak, Alaska · 2417 days ago · 7 km deep · 57 km away
  52. 1.778 km W of Adak, Alaska · 2417 days ago · 7 km deep · 1 km away
  53. 2.0131 km WSW of Adak, Alaska · 2417 days ago · 24 km deep · 74 km away
  54. 1.782 km W of Adak, Alaska · 2416 days ago · 4 km deep · 5 km away
  55. 1.577 km W of Adak, Alaska · 2416 days ago · 7 km deep · 0 km away
  56. 2.679 km W of Adak, Alaska · 2416 days ago · 14 km deep · 7 km away
  57. 2.364 km WSW of Adak, Alaska · 2416 days ago · 68 km deep · 30 km away
  58. 2.055 km WSW of Adak, Alaska · 2416 days ago · 95 km deep · 30 km away
  59. 1.9150 km WSW of Adak, Alaska · 2416 days ago · 17 km deep · 79 km away
  60. 1.684 km W of Adak, Alaska · 2416 days ago · 15 km deep · 7 km away

The first 60 of at least 200.

Before

  1. 1.677 km W of Adak, Alaska · 2425 days ago · 5 km deep · 4 km away
  2. 1.9127 km SW of Adak, Alaska · 2425 days ago · 26 km deep · 75 km away
  3. 2.886 km SW of Adak, Alaska · 2425 days ago · 41 km deep · 45 km away
  4. 3.4130 km WSW of Adak, Alaska · 2425 days ago · 10 km deep · 69 km away
  5. 1.879 km W of Adak, Alaska · 2425 days ago · 10 km deep · 2 km away
  6. 2.278 km W of Adak, Alaska · 2425 days ago · 10 km deep · 7 km away
  7. 1.844 km S of Adak, Alaska · 2426 days ago · 25 km deep · 85 km away
  8. 1.986 km W of Adak, Alaska · 2426 days ago · 7 km deep · 10 km away
  9. 1.936 km W of Adak, Alaska · 2426 days ago · 6 km deep · 41 km away
  10. 2.187 km W of Adak, Alaska · 2426 days ago · 6 km deep · 11 km away
  11. 1.784 km W of Adak, Alaska · 2427 days ago · 5 km deep · 8 km away
  12. 1.5Andreanof Islands, Aleutian Islands, Alaska · 2427 days ago · 7 km deep · 11 km away
  13. 1.784 km W of Adak, Alaska · 2427 days ago · 13 km deep · 8 km away
  14. 1.679 km W of Adak, Alaska · 2427 days ago · 13 km deep · 3 km away
  15. 1.783 km W of Adak, Alaska · 2427 days ago · 7 km deep · 6 km away
  16. 2.1165 km W of Adak, Alaska · 2427 days ago · 8 km deep · 89 km away
  17. 3.0135 km WSW of Adak, Alaska · 2427 days ago · 33 km deep · 76 km away
  18. 1.578 km W of Adak, Alaska · 2428 days ago · 6 km deep · 1 km away
  19. 1.779 km W of Adak, Alaska · 2428 days ago · 9 km deep · 2 km away
  20. 2.085 km W of Adak, Alaska · 2428 days ago · 7 km deep · 8 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0201zdqsas. Read Sat, Oct 3, 2026, 2:54 AM UTC.