Alaska earthquakes

M1.9 earthquake 136 km WSW of Adak, Alaska

A magnitude 1.9 earthquake struck 136 km WSW of Adak, Alaska on Mon, Feb 3, 2020, 9:15 PM HAST (07:15 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M5.3 216 km WSW 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
1.9 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2020-02-04 07:15:44 UTC
Depth
6.6 km (4.1 mi), shallow
Epicenter
51.609° N, 178.560° 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
17

Nearby

Within 100 km, magnitude 1.5 and up: at least 201 in the 60 days after this one and at least 200 in the 30 days before it.

After

  1. 2.6149 km SW of Adak, Alaska · 2433 days ago · 10 km deep · 66 km away
  2. 1.988 km W of Adak, Alaska · 2432 days ago · 5 km deep · 51 km away
  3. 2.389 km W of Adak, Alaska · 2432 days ago · 6 km deep · 51 km away
  4. 2.3210 km WSW of Adak, Alaska · 2432 days ago · 5 km deep · 86 km away
  5. 2.2214 km WSW of Adak, Alaska · 2432 days ago · 13 km deep · 89 km away
  6. 2.0118 km WSW of Adak, Alaska · 2432 days ago · 33 km deep · 41 km away
  7. 2.080 km W of Adak, Alaska · 2432 days ago · 12 km deep · 58 km away
  8. 1.982 km W of Adak, Alaska · 2432 days ago · 11 km deep · 56 km away
  9. 1.578 km W of Adak, Alaska · 2431 days ago · 9 km deep · 58 km away
  10. 2.0118 km WSW of Adak, Alaska · 2431 days ago · 13 km deep · 26 km away
  11. 1.878 km W of Adak, Alaska · 2431 days ago · 9 km deep · 60 km away
  12. 2.379 km W of Adak, Alaska · 2431 days ago · 2 km deep · 60 km away
  13. 1.680 km W of Adak, Alaska · 2431 days ago · 13 km deep · 63 km away
  14. 1.777 km W of Adak, Alaska · 2431 days ago · 7 km deep · 61 km away
  15. 3.0126 km WSW of Adak, Alaska · 2431 days ago · 10 km deep · 19 km away
  16. 1.879 km W of Adak, Alaska · 2431 days ago · 10 km deep · 60 km away
  17. 2.774 km W of Adak, Alaska · 2431 days ago · 10 km deep · 63 km away
  18. 3.078 km W of Adak, Alaska · 2431 days ago · 8 km deep · 62 km away
  19. 2.091 km W of Adak, Alaska · 2431 days ago · 5 km deep · 49 km away
  20. 1.884 km W of Adak, Alaska · 2430 days ago · 6 km deep · 55 km away
  21. 1.790 km WSW of Adak, Alaska · 2430 days ago · 23 km deep · 57 km away
  22. 2.1134 km SW of Adak, Alaska · 2430 days ago · 16 km deep · 62 km away
  23. 1.680 km W of Adak, Alaska · 2430 days ago · 13 km deep · 59 km away
  24. 2.389 km W of Adak, Alaska · 2429 days ago · 7 km deep · 52 km away
  25. 2.0125 km WSW of Adak, Alaska · 2429 days ago · 7 km deep · 11 km away
  26. 1.981 km W of Adak, Alaska · 2429 days ago · 7 km deep · 59 km away
  27. 1.990 km W of Adak, Alaska · 2429 days ago · 6 km deep · 50 km away
  28. 2.1130 km WSW of Adak, Alaska · 2428 days ago · 25 km deep · 31 km away
  29. 2.288 km W of Adak, Alaska · 2428 days ago · 5 km deep · 52 km away
  30. 2.085 km W of Adak, Alaska · 2427 days ago · 7 km deep · 54 km away
  31. 1.779 km W of Adak, Alaska · 2427 days ago · 9 km deep · 60 km away
  32. 1.578 km W of Adak, Alaska · 2427 days ago · 6 km deep · 61 km away
  33. 3.0135 km WSW of Adak, Alaska · 2427 days ago · 33 km deep · 43 km away
  34. 2.1165 km W of Adak, Alaska · 2427 days ago · 8 km deep · 35 km away
  35. 1.783 km W of Adak, Alaska · 2427 days ago · 7 km deep · 56 km away
  36. 1.679 km W of Adak, Alaska · 2427 days ago · 13 km deep · 60 km away
  37. 1.784 km W of Adak, Alaska · 2427 days ago · 13 km deep · 57 km away
  38. 1.5Andreanof Islands, Aleutian Islands, Alaska · 2427 days ago · 7 km deep · 52 km away
  39. 1.784 km W of Adak, Alaska · 2427 days ago · 5 km deep · 54 km away
  40. 2.187 km W of Adak, Alaska · 2426 days ago · 6 km deep · 53 km away
  41. 1.986 km W of Adak, Alaska · 2426 days ago · 7 km deep · 53 km away
  42. 2.278 km W of Adak, Alaska · 2425 days ago · 10 km deep · 64 km away
  43. 1.879 km W of Adak, Alaska · 2425 days ago · 10 km deep · 59 km away
  44. 3.4130 km WSW of Adak, Alaska · 2425 days ago · 10 km deep · 36 km away
  45. 2.886 km SW of Adak, Alaska · 2425 days ago · 41 km deep · 64 km away
  46. 1.9127 km SW of Adak, Alaska · 2425 days ago · 26 km deep · 53 km away
  47. 1.677 km W of Adak, Alaska · 2424 days ago · 5 km deep · 60 km away
  48. 1.877 km W of Adak, Alaska · 2424 days ago · 6 km deep · 61 km away
  49. 2.0Andreanof Islands, Aleutian Islands, Alaska · 2424 days ago · 7 km deep · 60 km away
  50. 1.882 km W of Adak, Alaska · 2424 days ago · 12 km deep · 57 km away
  51. 1.688 km W of Adak, Alaska · 2424 days ago · 3 km deep · 52 km away
  52. 1.988 km W of Adak, Alaska · 2424 days ago · 7 km deep · 51 km away
  53. 1.678 km W of Adak, Alaska · 2424 days ago · 3 km deep · 60 km away
  54. 1.888 km W of Adak, Alaska · 2424 days ago · 6 km deep · 52 km away
  55. 2.188 km W of Adak, Alaska · 2424 days ago · 3 km deep · 52 km away
  56. 2.087 km W of Adak, Alaska · 2424 days ago · 7 km deep · 54 km away
  57. 2.786 km W of Adak, Alaska · 2424 days ago · 9 km deep · 54 km away
  58. 2.087 km W of Adak, Alaska · 2424 days ago · 6 km deep · 53 km away
  59. 2.194 km W of Adak, Alaska · 2424 days ago · 4 km deep · 46 km away
  60. 1.788 km W of Adak, Alaska · 2423 days ago · 5 km deep · 51 km away

The first 60 of at least 201.

Before

  1. 1.576 km W of Adak, Alaska · 2433 days ago · 5 km deep · 62 km away
  2. 2.184 km W of Adak, Alaska · 2433 days ago · 5 km deep · 55 km away
  3. 1.687 km W of Adak, Alaska · 2433 days ago · 10 km deep · 52 km away
  4. 4.2229 km W of Adak, Alaska · 2433 days ago · 97 km deep · 98 km away
  5. 2.184 km W of Adak, Alaska · 2433 days ago · 4 km deep · 55 km away
  6. 2.079 km W of Adak, Alaska · 2433 days ago · 7 km deep · 60 km away
  7. 2.0128 km WSW of Adak, Alaska · 2433 days ago · 7 km deep · 8 km away
  8. 2.1128 km SW of Adak, Alaska · 2434 days ago · 26 km deep · 52 km away
  9. 2.079 km W of Adak, Alaska · 2434 days ago · 8 km deep · 60 km away
  10. 2.7133 km WSW of Adak, Alaska · 2434 days ago · 28 km deep · 44 km away
  11. 1.981 km W of Adak, Alaska · 2434 days ago · 5 km deep · 57 km away
  12. 2.6163 km WSW of Adak, AK · 2435 days ago · 35 km deep · 30 km away
  13. 2.2126 km WSW of Adak, Alaska · 2435 days ago · 25 km deep · 36 km away
  14. 2.183 km W of Adak, Alaska · 2435 days ago · 5 km deep · 57 km away
  15. 2.3Andreanof Islands, Aleutian Islands, Alaska · 2435 days ago · 3 km deep · 47 km away
  16. 2.094 km W of Adak, Alaska · 2435 days ago · 3 km deep · 47 km away
  17. 2.3137 km WSW of Adak, Alaska · 2435 days ago · 7 km deep · 4 km away
  18. 1.5Andreanof Islands, Aleutian Islands, Alaska · 2436 days ago · 4 km deep · 63 km away
  19. 1.879 km W of Adak, Alaska · 2436 days ago · 10 km deep · 58 km away
  20. 1.684 km W of Adak, Alaska · 2436 days ago · 5 km deep · 55 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0201m02ho0. Read Fri, Oct 2, 2026, 9:42 PM UTC.