Alaska earthquakes

M1.9 earthquake 126 km WSW of Adak, Alaska

A magnitude 1.9 earthquake struck 126 km WSW of Adak, Alaska on Wed, Feb 17, 2021, 6:54 AM HAST (16:54 UTC), 26 km (16 mi) below the surface.

A larger quake followed: M5.6 209 km WSW of Adak, Alaska. This one was a foreshock.

More in Alaska

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
1.9 (ml), micro
Local time
UTC
2021-02-17 16:54:57 UTC
Depth
25.6 km (15.9 mi), shallow
Epicenter
51.327° N, 178.230° 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
15

Nearby

Within 100 km, magnitude 1.5 and up: 145 in the 60 days after this one and 68 in the 30 days before it.

After

  1. 2.5122 km WSW of Adak, Alaska · 2045 days ago · 75 km deep · 24 km away
  2. 2.5193 km WSW of Adak, Alaska · 2044 days ago · 27 km deep · 71 km away
  3. 2.748 km WSW of Adak, Alaska · 2044 days ago · 81 km deep · 79 km away
  4. 3.8212 km WSW of Adak, Alaska · 2043 days ago · 31 km deep · 87 km away
  5. 2.8224 km WSW of Adak, Alaska · 2043 days ago · 26 km deep · 99 km away
  6. 2.260 km W of Adak, Alaska · 2043 days ago · 103 km deep · 87 km away
  7. 5.6209 km WSW of Adak, Alaska · 2043 days ago · 19 km deep · 83 km away · tsunami flag
  8. 4.6199 km WSW of Adak, Alaska · 2043 days ago · 35 km deep · 74 km away · felt by 1
  9. 3.4216 km WSW of Adak, Alaska · 2043 days ago · 10 km deep · 90 km away
  10. 3.0217 km SW of Adak, Alaska · 2043 days ago · 10 km deep · 92 km away
  11. 2.2206 km WSW of Adak, Alaska · 2043 days ago · 7 km deep · 80 km away
  12. 3.5213 km WSW of Adak, Alaska · 2043 days ago · 10 km deep · 88 km away
  13. 3.5218 km WSW of Adak, Alaska · 2043 days ago · 10 km deep · 92 km away
  14. 4.171 km SSW of Adak, Alaska · 2043 days ago · 35 km deep · 95 km away · felt by 1
  15. 3.6136 km WSW of Adak, Alaska · 2043 days ago · 19 km deep · 11 km away
  16. 3.0208 km WSW of Adak, Alaska · 2043 days ago · 16 km deep · 82 km away
  17. 3.9180 km WSW of Adak, Alaska · 2043 days ago · 37 km deep · 55 km away
  18. 2.1204 km WSW of Adak, Alaska · 2043 days ago · 8 km deep · 78 km away
  19. 4.0218 km WSW of Adak, Alaska · 2043 days ago · 10 km deep · 92 km away
  20. 4.1211 km WSW of Adak, Alaska · 2043 days ago · 35 km deep · 86 km away
  21. 1.8179 km WSW of Adak, Alaska · 2043 days ago · 13 km deep · 56 km away
  22. 2.9213 km WSW of Adak, Alaska · 2042 days ago · 13 km deep · 87 km away
  23. 1.856 km SW of Adak, Alaska · 2042 days ago · 30 km deep · 72 km away
  24. 2.4109 km W of Adak, Alaska · 2042 days ago · 188 km deep · 42 km away
  25. 1.9117 km WSW of Adak, Alaska · 2042 days ago · 27 km deep · 13 km away
  26. 1.964 km SSW of Adak, Alaska · 2041 days ago · 27 km deep · 83 km away
  27. 2.1111 km W of Adak, Alaska · 2041 days ago · 80 km deep · 47 km away
  28. 1.7126 km WSW of Adak, Alaska · 2041 days ago · 13 km deep · 36 km away
  29. 2.781 km WSW of Adak, Alaska · 2041 days ago · 79 km deep · 49 km away
  30. 4.8220 km WSW of Adak, Alaska · 2041 days ago · 10 km deep · 94 km away
  31. 3.7225 km WSW of Adak, Alaska · 2041 days ago · 10 km deep · 99 km away
  32. 2.899 km WSW of Adak, Alaska · 2041 days ago · 34 km deep · 26 km away
  33. 3.9222 km WSW of Adak, Alaska · 2040 days ago · 22 km deep · 96 km away
  34. 1.9134 km SW of Adak, Alaska · 2040 days ago · 41 km deep · 21 km away
  35. 2.039 km W of Adak, Alaska · 2040 days ago · 98 km deep · 95 km away
  36. 1.845 km SW of Adak, Alaska · 2039 days ago · 63 km deep · 84 km away
  37. 1.8139 km WSW of Adak, Alaska · 2039 days ago · 25 km deep · 14 km away
  38. 2.893 km WSW of Adak, Alaska · 2039 days ago · 35 km deep · 33 km away
  39. 2.2169 km WSW of Adak, Alaska · 2039 days ago · 20 km deep · 43 km away
  40. 1.9170 km W of Adak, Alaska · 2039 days ago · 5 km deep · 78 km away
  41. 1.876 km SSW of Adak, Alaska · 2039 days ago · 36 km deep · 74 km away
  42. 1.762 km SW of Adak, Alaska · 2039 days ago · 33 km deep · 67 km away
  43. 1.587 km W of Adak, Alaska · 2038 days ago · 5 km deep · 63 km away
  44. 2.0143 km WSW of Adak, Alaska · 2037 days ago · 25 km deep · 20 km away
  45. 2.074 km WSW of Adak, Alaska · 2036 days ago · 66 km deep · 52 km away
  46. 1.763 km SSW of Adak, Alaska · 2036 days ago · 27 km deep · 87 km away
  47. 1.8128 km WSW of Adak, Alaska · 2035 days ago · 13 km deep · 37 km away
  48. 2.0116 km WSW of Adak, Alaska · 2034 days ago · 85 km deep · 36 km away
  49. 2.2191 km WSW of Adak, Alaska · 2034 days ago · 67 km deep · 73 km away
  50. 5.4185 km WSW of Adak, Alaska · 2034 days ago · 22 km deep · 59 km away · felt by 2 · tsunami flag
  51. 4.4217 km WSW of Adak, Alaska · 2032 days ago · 15 km deep · 91 km away
  52. 4.7211 km WSW of Adak, Alaska · 2032 days ago · 10 km deep · 85 km away
  53. 2.655 km SSW of Adak, Alaska · 2031 days ago · 35 km deep · 87 km away
  54. 3.4213 km WSW of Adak, Alaska · 2030 days ago · 10 km deep · 88 km away
  55. 3.549 km SSW of Adak, Alaska · 2030 days ago · 38 km deep · 93 km away
  56. 1.952 km SSW of Adak, Alaska · 2029 days ago · 37 km deep · 92 km away
  57. 2.8113 km WSW of Adak, Alaska · 2027 days ago · 17 km deep · 14 km away
  58. 2.0119 km W of Adak, Alaska · 2026 days ago · 9 km deep · 61 km away
  59. 3.1123 km WSW of Adak, Alaska · 2026 days ago · 30 km deep · 10 km away
  60. 1.6117 km W of Adak, Alaska · 2026 days ago · 15 km deep · 57 km away

The first 60 of 145.

Before

  1. 1.681 km W of Adak, Alaska · 2045 days ago · 4 km deep · 65 km away
  2. 1.856 km SW of Adak, Alaska · 2045 days ago · 57 km deep · 71 km away
  3. 2.0135 km WSW of Adak, Alaska · 2046 days ago · 24 km deep · 9 km away
  4. 2.678 km SW of Adak, Alaska · 2046 days ago · 41 km deep · 50 km away
  5. 3.9139 km WSW of Adak, Alaska · 2046 days ago · 35 km deep · 16 km away
  6. 1.861 km SSW of Adak, Alaska · 2047 days ago · 33 km deep · 79 km away
  7. 1.649 km SSW of Adak, Alaska · 2047 days ago · 27 km deep · 88 km away
  8. 3.5173 km WSW of Adak, Alaska · 2047 days ago · 10 km deep · 64 km away
  9. 2.3134 km SW of Adak, Alaska · 2048 days ago · 28 km deep · 50 km away
  10. 3.3Andreanof Islands, Aleutian Islands, Alaska · 2048 days ago · 35 km deep · 71 km away
  11. 4.8184 km WSW of Adak, Alaska · 2048 days ago · 23 km deep · 69 km away
  12. 1.581 km WSW of Adak, Alaska · 2050 days ago · 25 km deep · 45 km away
  13. 2.8150 km WSW of Adak, Alaska · 2050 days ago · 32 km deep · 26 km away
  14. 1.753 km W of Adak, Alaska · 2051 days ago · -2 km deep · 81 km away
  15. 1.848 km SW of Adak, Alaska · 2052 days ago · 45 km deep · 83 km away
  16. 2.575 km SSW of Adak, Alaska · 2053 days ago · 35 km deep · 80 km away
  17. 2.8154 km SW of Adak, Alaska · 2053 days ago · 31 km deep · 30 km away
  18. 1.9110 km SW of Adak, Alaska · 2055 days ago · 45 km deep · 19 km away
  19. 1.863 km SSW of Adak, Alaska · 2056 days ago · 35 km deep · 90 km away
  20. 3.9112 km SW of Adak, Alaska · 2056 days ago · 42 km deep · 20 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak02127nnagc. Read Thu, Sep 24, 2026, 4:21 PM UTC.