Alaska earthquakes

M1.6 earthquake 67 km SE of Adak, Alaska

A magnitude 1.6 earthquake struck 67 km SE of Adak, Alaska on Wed, Jul 21, 2021, 8:44 PM HADT (05:44 UTC), 22 km (13 mi) below the surface.

A larger quake followed: M4.1 77 km S of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
1.6 (ml), micro
Local time
UTC
2021-07-22 05:44:46 UTC
Depth
21.5 km (13.4 mi), shallow
Epicenter
51.427° N, 175.972° 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
21

Nearby

Within 100 km, magnitude 1.5 and up: 187 in the 60 days after this one and 84 in the 30 days before it.

After

  1. 2.095 km SSW of Atka, Alaska · 1893 days ago · 16 km deep · 75 km away
  2. 1.697 km SSW of Atka, Alaska · 1893 days ago · 26 km deep · 71 km away
  3. 1.815 km NE of Adak, Alaska · 1892 days ago · 99 km deep · 67 km away
  4. 1.775 km SW of Atka, Alaska · 1892 days ago · 35 km deep · 77 km away
  5. 2.882 km E of Adak, Alaska · 1892 days ago · 68 km deep · 63 km away
  6. 1.948 km E of Adak, Alaska · 1892 days ago · 178 km deep · 55 km away
  7. 1.968 km ENE of Adak, Alaska · 1892 days ago · 166 km deep · 71 km away
  8. 2.1Andreanof Islands, Aleutian Islands, Alaska · 1892 days ago · 63 km deep · 37 km away
  9. 1.867 km ENE of Adak, Alaska · 1891 days ago · 147 km deep · 71 km away
  10. 1.553 km S of Adak, Alaska · 1891 days ago · 25 km deep · 45 km away
  11. 3.238 km ENE of Adak, Alaska · 1891 days ago · 146 km deep · 68 km away
  12. 4.074 km S of Adak, Alaska · 1890 days ago · 35 km deep · 40 km away
  13. 2.267 km S of Adak, Alaska · 1890 days ago · 21 km deep · 44 km away
  14. 3.662 km S of Adak, Alaska · 1890 days ago · 55 km deep · 41 km away
  15. 1.986 km S of Adak, Alaska · 1890 days ago · 26 km deep · 50 km away
  16. 4.177 km S of Adak, Alaska · 1890 days ago · 29 km deep · 42 km away
  17. 2.190 km SW of Atka, Alaska · 1890 days ago · 42 km deep · 60 km away
  18. 1.568 km SW of Atka, Alaska · 1890 days ago · 28 km deep · 85 km away
  19. 1.585 km S of Adak, Alaska · 1890 days ago · 17 km deep · 50 km away
  20. 2.370 km S of Adak, Alaska · 1890 days ago · 21 km deep · 45 km away
  21. 2.291 km ESE of Adak, Alaska · 1890 days ago · 45 km deep · 54 km away
  22. 2.856 km E of Adak, Alaska · 1890 days ago · 67 km deep · 46 km away
  23. 3.869 km S of Adak, Alaska · 1889 days ago · 35 km deep · 41 km away
  24. 2.776 km S of Adak, Alaska · 1889 days ago · 20 km deep · 48 km away
  25. 1.773 km SSE of Adak, Alaska · 1889 days ago · 25 km deep · 31 km away
  26. 2.172 km S of Adak, Alaska · 1889 days ago · 26 km deep · 48 km away
  27. 3.647 km SE of Adak, Alaska · 1889 days ago · 48 km deep · 20 km away
  28. 1.978 km ENE of Adak, Alaska · 1889 days ago · 166 km deep · 91 km away
  29. 4.087 km S of Adak, Alaska · 1888 days ago · 10 km deep · 56 km away
  30. 3.889 km S of Adak, Alaska · 1888 days ago · 16 km deep · 53 km away
  31. 3.079 km ENE of Adak, Alaska · 1888 days ago · 191 km deep · 96 km away
  32. 3.892 km S of Adak, Alaska · 1888 days ago · 14 km deep · 54 km away
  33. 3.988 km S of Adak, Alaska · 1888 days ago · 23 km deep · 52 km away
  34. 2.045 km WSW of Adak, Alaska · 1888 days ago · 70 km deep · 88 km away
  35. 1.650 km ENE of Adak, Alaska · 1888 days ago · 148 km deep · 74 km away
  36. 1.587 km S of Adak, Alaska · 1888 days ago · 39 km deep · 50 km away
  37. 1.776 km ENE of Adak, Alaska · 1888 days ago · 179 km deep · 80 km away
  38. 1.570 km S of Adak, Alaska · 1887 days ago · 21 km deep · 46 km away
  39. 1.715 km E of Adak, AK · 1887 days ago · 76 km deep · 56 km away
  40. 3.035 km S of Adak, Alaska · 1887 days ago · 46 km deep · 43 km away
  41. 1.860 km SE of Adak, Alaska · 1887 days ago · 26 km deep · 10 km away
  42. 1.9100 km SSE of Adak, Alaska · 1886 days ago · 14 km deep · 53 km away
  43. 3.044 km SSW of Adak, Alaska · 1886 days ago · 70 km deep · 66 km away
  44. 1.837 km ENE of Adak, Alaska · 1886 days ago · 147 km deep · 69 km away
  45. 1.682 km ENE of Adak, Alaska · 1885 days ago · 13 km deep · 81 km away
  46. 1.643 km S of Adak, Alaska · 1885 days ago · 26 km deep · 43 km away
  47. 3.172 km ENE of Adak, Alaska · 1885 days ago · 98 km deep · 77 km away
  48. 2.055 km ENE of Adak, Alaska · 1885 days ago · 179 km deep · 66 km away
  49. 1.519 km WNW of Adak, Alaska · 1885 days ago · 86 km deep · 86 km away
  50. 3.563 km SE of Adak, Alaska · 1884 days ago · 35 km deep · 7 km away
  51. 1.954 km ENE of Adak, Alaska · 1884 days ago · 211 km deep · 74 km away
  52. 1.685 km WSW of Atka, Alaska · 1884 days ago · 78 km deep · 72 km away
  53. 2.896 km SW of Atka, Alaska · 1884 days ago · 35 km deep · 58 km away
  54. 1.568 km SSW of Adak, Alaska · 1884 days ago · 42 km deep · 80 km away
  55. 1.9Andreanof Islands, Aleutian Islands, Alaska · 1884 days ago · 29 km deep · 10 km away
  56. 1.666 km SE of Adak, Alaska · 1884 days ago · 26 km deep · 4 km away
  57. 3.054 km ESE of Adak, Alaska · 1883 days ago · 42 km deep · 26 km away
  58. 1.638 km SW of Adak, Alaska · 1883 days ago · 27 km deep · 76 km away
  59. 1.897 km S of Adak, Alaska · 1883 days ago · 26 km deep · 73 km away
  60. 1.578 km SSE of Adak, Alaska · 1882 days ago · 19 km deep · 32 km away

The first 60 of 187.

Before

  1. 1.679 km SSE of Adak, Alaska · 1893 days ago · 18 km deep · 35 km away
  2. 1.531 km SSE of Adak, Alaska · 1893 days ago · 59 km deep · 42 km away
  3. 2.183 km SE of Adak, Alaska · 1893 days ago · 21 km deep · 21 km away
  4. 1.927 km SSW of Adak, Alaska · 1894 days ago · 63 km deep · 60 km away
  5. 3.766 km SSE of Adak, Alaska · 1894 days ago · 37 km deep · 33 km away
  6. 1.983 km SW of Atka, Alaska · 1894 days ago · 26 km deep · 69 km away
  7. 3.694 km SSE of Adak, Alaska · 1894 days ago · 25 km deep · 50 km away
  8. 2.246 km S of Adak, Alaska · 1895 days ago · 29 km deep · 43 km away
  9. 2.6104 km SE of Adak, Alaska · 1895 days ago · 2 km deep · 37 km away
  10. 2.361 km ENE of Adak, Alaska · 1895 days ago · 101 km deep · 84 km away
  11. 1.617 km WSW of Adak, Alaska · 1895 days ago · 74 km deep · 75 km away
  12. 1.849 km SW of Adak, Alaska · 1895 days ago · 28 km deep · 76 km away
  13. 3.982 km SW of Atka, Alaska · 1896 days ago · 49 km deep · 67 km away
  14. 1.6Andreanof Islands, Aleutian Islands, Alaska · 1897 days ago · 26 km deep · 47 km away
  15. 2.460 km NE of Adak, Alaska · 1898 days ago · 183 km deep · 95 km away
  16. 1.847 km E of Adak, Alaska · 1898 days ago · 155 km deep · 57 km away
  17. 1.858 km WSW of Atka, Alaska · 1898 days ago · 73 km deep · 95 km away
  18. 2.012 km W of Adak, Alaska · 1899 days ago · 81 km deep · 77 km away
  19. 3.380 km E of Adak, Alaska · 1899 days ago · 10 km deep · 62 km away
  20. 1.571 km WSW of Atka, Alaska · 1899 days ago · 67 km deep · 77 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0219btc5di. Read Sat, Sep 26, 2026, 11:37 PM UTC.