Alaska earthquakes

M1.9 earthquake 149 km WSW of Adak, Alaska

A magnitude 1.9 earthquake struck 149 km WSW of Adak, Alaska on Wed, Feb 3, 2021, 8:34 PM HAST (06:34 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.6 209 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), micro
Local time
UTC
2021-02-04 06:34:42 UTC
Depth
9.7 km (6.0 mi), shallow
Epicenter
51.439° N, 178.671° 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
27

Nearby

Within 100 km, magnitude 1.5 and up: 130 in the 60 days after this one and 56 in the 30 days before it.

After

  1. 1.5Andreanof Islands, Aleutian Islands, Alaska · 2062 days ago · 7 km deep · 74 km away
  2. 1.9120 km SW of Adak, Alaska · 2062 days ago · 26 km deep · 47 km away
  3. 1.882 km WSW of Adak, Alaska · 2061 days ago · 13 km deep · 69 km away
  4. 1.787 km WSW of Adak, Alaska · 2061 days ago · 44 km deep · 63 km away
  5. 3.0103 km SW of Adak, Alaska · 2061 days ago · 30 km deep · 80 km away
  6. 1.786 km WSW of Adak, Alaska · 2060 days ago · 48 km deep · 65 km away
  7. 3.9112 km SW of Adak, Alaska · 2060 days ago · 42 km deep · 53 km away
  8. 1.9110 km SW of Adak, Alaska · 2059 days ago · 45 km deep · 52 km away
  9. 2.8154 km SW of Adak, Alaska · 2056 days ago · 31 km deep · 38 km away
  10. 3.0242 km WSW of Adak, Alaska · 2054 days ago · 13 km deep · 94 km away
  11. 1.753 km W of Adak, Alaska · 2054 days ago · -2 km deep · 98 km away
  12. 2.8150 km WSW of Adak, Alaska · 2054 days ago · 32 km deep · 37 km away
  13. 1.581 km WSW of Adak, Alaska · 2053 days ago · 25 km deep · 70 km away
  14. 4.8184 km WSW of Adak, Alaska · 2051 days ago · 23 km deep · 37 km away
  15. 3.3Andreanof Islands, Aleutian Islands, Alaska · 2051 days ago · 35 km deep · 43 km away
  16. 2.3134 km SW of Adak, Alaska · 2051 days ago · 28 km deep · 79 km away
  17. 3.5173 km WSW of Adak, Alaska · 2051 days ago · 10 km deep · 31 km away
  18. 3.9139 km WSW of Adak, Alaska · 2049 days ago · 35 km deep · 35 km away
  19. 2.678 km SW of Adak, Alaska · 2049 days ago · 41 km deep · 79 km away
  20. 2.0135 km WSW of Adak, Alaska · 2049 days ago · 24 km deep · 31 km away
  21. 1.856 km SW of Adak, Alaska · 2048 days ago · 57 km deep · 97 km away
  22. 1.681 km W of Adak, Alaska · 2048 days ago · 4 km deep · 75 km away
  23. 1.9126 km WSW of Adak, Alaska · 2048 days ago · 26 km deep · 33 km away
  24. 2.5122 km WSW of Adak, Alaska · 2048 days ago · 75 km deep · 26 km away
  25. 2.5193 km WSW of Adak, Alaska · 2048 days ago · 27 km deep · 45 km away
  26. 3.8212 km WSW of Adak, Alaska · 2047 days ago · 31 km deep · 68 km away
  27. 2.8224 km WSW of Adak, Alaska · 2047 days ago · 26 km deep · 82 km away
  28. 2.260 km W of Adak, Alaska · 2047 days ago · 103 km deep · 100 km away
  29. 4.2227 km SW of Adak, Alaska · 2047 days ago · 10 km deep · 90 km away
  30. 5.6209 km WSW of Adak, Alaska · 2047 days ago · 19 km deep · 68 km away · tsunami flag
  31. 4.6199 km WSW of Adak, Alaska · 2047 days ago · 35 km deep · 54 km away · felt by 1
  32. 3.4216 km WSW of Adak, Alaska · 2047 days ago · 10 km deep · 78 km away
  33. 3.0217 km SW of Adak, Alaska · 2047 days ago · 10 km deep · 81 km away
  34. 2.2206 km WSW of Adak, Alaska · 2046 days ago · 7 km deep · 66 km away
  35. 3.5213 km WSW of Adak, Alaska · 2046 days ago · 10 km deep · 77 km away
  36. 3.5218 km WSW of Adak, Alaska · 2046 days ago · 10 km deep · 76 km away
  37. 4.1236 km WSW of Adak, Alaska · 2046 days ago · 10 km deep · 92 km away
  38. 3.8237 km WSW of Adak, Alaska · 2046 days ago · 23 km deep · 93 km away
  39. 3.6136 km WSW of Adak, Alaska · 2046 days ago · 19 km deep · 25 km away
  40. 3.8228 km WSW of Adak, Alaska · 2046 days ago · 10 km deep · 87 km away
  41. 3.0208 km WSW of Adak, Alaska · 2046 days ago · 16 km deep · 64 km away
  42. 3.9180 km WSW of Adak, Alaska · 2046 days ago · 37 km deep · 38 km away
  43. 2.1204 km WSW of Adak, Alaska · 2046 days ago · 8 km deep · 63 km away
  44. 3.1234 km WSW of Adak, Alaska · 2046 days ago · 10 km deep · 89 km away
  45. 4.0218 km WSW of Adak, Alaska · 2046 days ago · 10 km deep · 78 km away
  46. 4.1211 km WSW of Adak, Alaska · 2046 days ago · 35 km deep · 67 km away
  47. 1.8179 km WSW of Adak, Alaska · 2046 days ago · 13 km deep · 31 km away
  48. 2.9213 km WSW of Adak, Alaska · 2046 days ago · 13 km deep · 70 km away
  49. 1.856 km SW of Adak, Alaska · 2045 days ago · 30 km deep · 99 km away
  50. 2.4109 km W of Adak, Alaska · 2045 days ago · 188 km deep · 44 km away
  51. 1.9117 km WSW of Adak, Alaska · 2045 days ago · 27 km deep · 34 km away
  52. 2.1111 km W of Adak, Alaska · 2045 days ago · 80 km deep · 46 km away
  53. 1.7126 km WSW of Adak, Alaska · 2045 days ago · 13 km deep · 28 km away
  54. 2.781 km WSW of Adak, Alaska · 2044 days ago · 79 km deep · 67 km away
  55. 4.8220 km WSW of Adak, Alaska · 2044 days ago · 10 km deep · 82 km away
  56. 3.7225 km WSW of Adak, Alaska · 2044 days ago · 10 km deep · 85 km away
  57. 2.899 km WSW of Adak, Alaska · 2044 days ago · 34 km deep · 53 km away
  58. 2.8234 km WSW of Adak, Alaska · 2044 days ago · 24 km deep · 89 km away
  59. 3.9222 km WSW of Adak, Alaska · 2044 days ago · 22 km deep · 79 km away
  60. 1.9134 km SW of Adak, Alaska · 2043 days ago · 41 km deep · 48 km away

The first 60 of 130.

Before

  1. 1.697 km SW of Adak, Alaska · 2063 days ago · 15 km deep · 72 km away
  2. 2.7121 km SW of Adak, Alaska · 2063 days ago · 30 km deep · 51 km away
  3. 1.9130 km SW of Adak, Alaska · 2064 days ago · 45 km deep · 48 km away
  4. 1.9178 km WSW of Adak, Alaska · 2064 days ago · 1 km deep · 35 km away
  5. 1.979 km WSW of Adak, Alaska · 2064 days ago · 67 km deep · 72 km away
  6. 1.675 km WSW of Adak, Alaska · 2064 days ago · 17 km deep · 76 km away
  7. 1.685 km WSW of Adak, Alaska · 2064 days ago · 13 km deep · 64 km away
  8. 1.783 km SW of Adak, Alaska · 2064 days ago · 47 km deep · 73 km away
  9. 1.874 km SW of Adak, Alaska · 2064 days ago · 50 km deep · 93 km away
  10. 2.0118 km WSW of Adak, Alaska · 2064 days ago · 33 km deep · 40 km away
  11. 3.168 km WSW of Adak, Alaska · 2065 days ago · 68 km deep · 82 km away
  12. 2.8138 km SW of Adak, Alaska · 2066 days ago · 35 km deep · 49 km away
  13. 1.971 km SW of Adak, Alaska · 2066 days ago · 43 km deep · 82 km away
  14. 2.7243 km WSW of Adak, Alaska · 2067 days ago · 21 km deep · 95 km away
  15. 2.1131 km W of Adak, Alaska · 2067 days ago · 115 km deep · 38 km away
  16. 1.885 km WSW of Adak, Alaska · 2067 days ago · 72 km deep · 65 km away
  17. 2.5Andreanof Islands, Aleutian Islands, Alaska · 2067 days ago · 41 km deep · 79 km away
  18. 2.1134 km WSW of Adak, Alaska · 2068 days ago · 20 km deep · 25 km away
  19. 3.491 km SW of Adak, Alaska · 2069 days ago · 23 km deep · 83 km away
  20. 1.681 km W of Adak, Alaska · 2069 days ago · 8 km deep · 75 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0211lzl4ka. Read Sun, Sep 27, 2026, 10:33 PM UTC.