Alaska earthquakes

M1.6 earthquake 85 km WSW of Atka, Alaska

A magnitude 1.6 earthquake struck 85 km WSW of Atka, Alaska on Fri, Jul 30, 2021, 5:25 AM HADT (14:25 UTC), 78 km (49 mi) below the surface.

A larger quake followed: M4.3 116 km NW of Atka, Alaska. This one was a foreshock.

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The earthquake

Magnitude
1.6 (ml), micro
Local time
UTC
2021-07-30 14:25:44 UTC
Depth
78.1 km (48.5 mi), intermediate-depth
Epicenter
51.969° N, 175.392° 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: 156 in the 60 days after this one and 112 in the 30 days before it.

After

  1. 2.896 km SW of Atka, Alaska · 1885 days ago · 35 km deep · 47 km away
  2. 2.989 km NNE of Adak, Alaska · 1885 days ago · 212 km deep · 78 km away
  3. 1.9Andreanof Islands, Aleutian Islands, Alaska · 1884 days ago · 29 km deep · 78 km away
  4. 1.666 km SE of Adak, Alaska · 1884 days ago · 26 km deep · 68 km away
  5. 2.066 km NE of Adak, Alaska · 1884 days ago · 217 km deep · 58 km away
  6. 3.054 km ESE of Adak, Alaska · 1884 days ago · 42 km deep · 51 km away
  7. 1.912 km S of Atka, Alaska · 1883 days ago · 24 km deep · 83 km away
  8. 1.658 km SE of Adak, Alaska · 1883 days ago · 26 km deep · 73 km away
  9. 2.741 km SSW of Atka, Alaska · 1882 days ago · 210 km deep · 62 km away
  10. 1.911 km S of Atka, Alaska · 1882 days ago · 74 km deep · 81 km away
  11. 3.517 km SE of Adak, Alaska · 1882 days ago · 69 km deep · 74 km away
  12. 3.244 km SSE of Adak, Alaska · 1882 days ago · 44 km deep · 88 km away
  13. 3.110 km NW of Atka, Alaska · 1881 days ago · 210 km deep · 80 km away
  14. 1.520 km SSW of Adak, Alaska · 1880 days ago · 74 km deep · 99 km away
  15. 1.559 km SE of Adak, Alaska · 1880 days ago · 23 km deep · 76 km away
  16. 3.150 km S of Atka, Alaska · 1880 days ago · 10 km deep · 85 km away
  17. 1.765 km SE of Adak, Alaska · 1879 days ago · 24 km deep · 67 km away
  18. 3.672 km SE of Adak, Alaska · 1879 days ago · 30 km deep · 74 km away
  19. 1.565 km SSE of Adak, Alaska · 1879 days ago · 20 km deep · 87 km away
  20. 1.977 km NE of Adak, Alaska · 1878 days ago · 138 km deep · 66 km away
  21. 1.969 km SE of Adak, Alaska · 1878 days ago · 39 km deep · 71 km away
  22. 2.766 km S of Atka, Alaska · 1877 days ago · 35 km deep · 94 km away
  23. 1.9123 km SSW of Atka, Alaska · 1877 days ago · 26 km deep · 83 km away
  24. 2.0120 km SSW of Atka, Alaska · 1877 days ago · 21 km deep · 79 km away
  25. 3.072 km ESE of Adak, Alaska · 1877 days ago · 62 km deep · 40 km away
  26. 1.867 km WSW of Atka, Alaska · 1876 days ago · 69 km deep · 23 km away
  27. 3.6112 km SSW of Atka, Alaska · 1876 days ago · 11 km deep · 89 km away
  28. 2.6112 km SSW of Atka, Alaska · 1876 days ago · 11 km deep · 87 km away
  29. 3.9111 km SSW of Atka, Alaska · 1876 days ago · 27 km deep · 87 km away
  30. 2.0112 km SSW of Atka, Alaska · 1876 days ago · 12 km deep · 88 km away
  31. 1.930 km SSW of Atka, Alaska · 1875 days ago · 65 km deep · 65 km away
  32. 1.774 km SSE of Adak, Alaska · 1874 days ago · 25 km deep · 96 km away
  33. 2.122 km SSW of Atka, Alaska · 1874 days ago · 152 km deep · 70 km away
  34. 3.054 km SE of Adak, Alaska · 1874 days ago · 35 km deep · 75 km away
  35. 2.744 km SSE of Adak, Alaska · 1874 days ago · 35 km deep · 83 km away
  36. 1.685 km SW of Atka, Alaska · 1873 days ago · 25 km deep · 45 km away
  37. 3.160 km SSW of Atka, Alaska · 1873 days ago · 224 km deep · 62 km away
  38. 1.813 km N of Atka, Alaska · 1873 days ago · 4 km deep · 89 km away
  39. 1.815 km N of Atka, Alaska · 1873 days ago · 3 km deep · 92 km away
  40. 2.114 km N of Atka, Alaska · 1873 days ago · 5 km deep · 91 km away
  41. 2.014 km N of Atka, Alaska · 1873 days ago · 5 km deep · 91 km away
  42. 1.513 km N of Atka, Alaska · 1873 days ago · 5 km deep · 89 km away
  43. 2.114 km N of Atka, Alaska · 1873 days ago · 4 km deep · 91 km away
  44. 2.315 km N of Atka, Alaska · 1873 days ago · 4 km deep · 92 km away
  45. 3.764 km SE of Adak, Alaska · 1873 days ago · 35 km deep · 68 km away
  46. 1.613 km N of Atka, Alaska · 1873 days ago · 5 km deep · 90 km away
  47. 2.015 km N of Atka, Alaska · 1872 days ago · 4 km deep · 92 km away
  48. 1.6116 km SSW of Atka, Alaska · 1872 days ago · 19 km deep · 94 km away
  49. 3.028 km WSW of Atka, Alaska · 1872 days ago · 71 km deep · 57 km away
  50. 1.741 km ENE of Adak, Alaska · 1872 days ago · 6 km deep · 49 km away
  51. 2.746 km S of Atka, Alaska · 1871 days ago · 35 km deep · 93 km away
  52. 1.574 km E of Adak, Alaska · 1871 days ago · 22 km deep · 23 km away
  53. 1.653 km SSW of Atka, Alaska · 1871 days ago · 15 km deep · 71 km away
  54. 3.142 km S of Adak, Alaska · 1871 days ago · 69 km deep · 95 km away
  55. 2.9Andreanof Islands, Aleutian Islands, Alaska · 1870 days ago · 33 km deep · 86 km away
  56. 1.620 km SE of Adak, Alaska · 1870 days ago · 71 km deep · 77 km away
  57. 1.560 km SE of Adak, Alaska · 1870 days ago · 22 km deep · 76 km away
  58. 3.183 km E of Adak, Alaska · 1868 days ago · 73 km deep · 20 km away
  59. 1.514 km SSE of Adak, Alaska · 1866 days ago · 80 km deep · 81 km away
  60. 1.573 km WSW of Atka, Alaska · 1865 days ago · 64 km deep · 16 km away

The first 60 of 156.

Before

  1. 1.954 km ENE of Adak, Alaska · 1885 days ago · 211 km deep · 39 km away
  2. 3.563 km SE of Adak, Alaska · 1885 days ago · 35 km deep · 77 km away
  3. 3.074 km NW of Atka, Alaska · 1885 days ago · 206 km deep · 86 km away
  4. 2.055 km ENE of Adak, Alaska · 1885 days ago · 179 km deep · 32 km away
  5. 3.172 km ENE of Adak, Alaska · 1885 days ago · 98 km deep · 22 km away
  6. 1.643 km S of Adak, Alaska · 1885 days ago · 26 km deep · 99 km away
  7. 1.682 km ENE of Adak, Alaska · 1886 days ago · 13 km deep · 15 km away
  8. 1.837 km ENE of Adak, Alaska · 1886 days ago · 147 km deep · 53 km away
  9. 3.344 km NNE of Adak, Alaska · 1887 days ago · 211 km deep · 83 km away
  10. 1.860 km SE of Adak, Alaska · 1887 days ago · 26 km deep · 65 km away
  11. 3.035 km S of Adak, Alaska · 1887 days ago · 46 km deep · 93 km away
  12. 1.715 km E of Adak, AK · 1887 days ago · 76 km deep · 71 km away
  13. 2.129 km NNW of Atka, Alaska · 1888 days ago · 185 km deep · 89 km away
  14. 1.776 km ENE of Adak, Alaska · 1888 days ago · 179 km deep · 20 km away
  15. 1.650 km ENE of Adak, Alaska · 1888 days ago · 148 km deep · 43 km away
  16. 3.079 km ENE of Adak, Alaska · 1889 days ago · 191 km deep · 37 km away
  17. 1.978 km ENE of Adak, Alaska · 1889 days ago · 166 km deep · 33 km away
  18. 3.647 km SE of Adak, Alaska · 1889 days ago · 48 km deep · 73 km away
  19. 2.920 km WNW of Atka, Alaska · 1890 days ago · 201 km deep · 70 km away
  20. 2.856 km E of Adak, Alaska · 1890 days ago · 67 km deep · 33 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0219p6vr1c. Read Sun, Sep 27, 2026, 6:52 AM UTC.