Alaska earthquakes

M1.7 earthquake 15 km E of Adak, AK

A magnitude 1.7 earthquake struck 15 km E of Adak, AK on Tue, Jul 27, 2021, 10:29 AM HADT (19:29 UTC), 76 km (47 mi) below the surface.

A larger quake followed: M3.7 64 km SE of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
1.7 (ml), micro
Local time
UTC
2021-07-27 19:29:40 UTC
Depth
76.2 km (47.3 mi), intermediate-depth
Epicenter
51.852° N, 176.413° 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
44

Nearby

Within 100 km, magnitude 1.5 and up: 190 in the 60 days after this one and 125 in the 30 days before it.

After

  1. 3.035 km S of Adak, Alaska · 1889 days ago · 46 km deep · 34 km away
  2. 1.860 km SE of Adak, Alaska · 1889 days ago · 26 km deep · 48 km away
  3. 3.344 km NNE of Adak, Alaska · 1888 days ago · 211 km deep · 47 km away
  4. 1.9100 km SSE of Adak, Alaska · 1888 days ago · 14 km deep · 96 km away
  5. 3.044 km SSW of Adak, Alaska · 1888 days ago · 70 km deep · 51 km away
  6. 1.837 km ENE of Adak, Alaska · 1887 days ago · 147 km deep · 27 km away
  7. 1.550 km WSW of Adak, Alaska · 1887 days ago · 74 km deep · 65 km away
  8. 1.781 km SW of Adak, Alaska · 1887 days ago · 25 km deep · 91 km away
  9. 1.682 km ENE of Adak, Alaska · 1887 days ago · 13 km deep · 69 km away
  10. 1.643 km S of Adak, Alaska · 1887 days ago · 26 km deep · 43 km away
  11. 1.767 km W of Adak, Alaska · 1887 days ago · 93 km deep · 82 km away
  12. 3.172 km ENE of Adak, Alaska · 1887 days ago · 98 km deep · 59 km away
  13. 2.055 km ENE of Adak, Alaska · 1886 days ago · 179 km deep · 42 km away
  14. 1.519 km WNW of Adak, Alaska · 1886 days ago · 86 km deep · 35 km away
  15. 3.563 km SE of Adak, Alaska · 1886 days ago · 35 km deep · 54 km away
  16. 1.954 km ENE of Adak, Alaska · 1886 days ago · 211 km deep · 43 km away
  17. 1.685 km WSW of Atka, Alaska · 1886 days ago · 78 km deep · 71 km away
  18. 2.896 km SW of Atka, Alaska · 1886 days ago · 35 km deep · 91 km away
  19. 2.989 km NNE of Adak, Alaska · 1886 days ago · 212 km deep · 85 km away
  20. 1.568 km SSW of Adak, Alaska · 1886 days ago · 42 km deep · 75 km away
  21. 1.9Andreanof Islands, Aleutian Islands, Alaska · 1886 days ago · 29 km deep · 52 km away
  22. 1.666 km SE of Adak, Alaska · 1886 days ago · 26 km deep · 55 km away
  23. 2.066 km NE of Adak, Alaska · 1885 days ago · 217 km deep · 60 km away
  24. 1.8Andreanof Islands, Aleutian Islands, Alaska · 1885 days ago · 18 km deep · 96 km away
  25. 3.054 km ESE of Adak, Alaska · 1885 days ago · 42 km deep · 40 km away
  26. 1.638 km SW of Adak, Alaska · 1885 days ago · 27 km deep · 49 km away
  27. 1.897 km S of Adak, Alaska · 1884 days ago · 26 km deep · 98 km away
  28. 1.578 km SSE of Adak, Alaska · 1884 days ago · 19 km deep · 72 km away
  29. 1.749 km S of Adak, Alaska · 1884 days ago · 30 km deep · 48 km away
  30. 1.773 km W of Adak, Alaska · 1884 days ago · 73 km deep · 88 km away
  31. 1.658 km SE of Adak, Alaska · 1884 days ago · 26 km deep · 47 km away
  32. 3.517 km SE of Adak, Alaska · 1883 days ago · 69 km deep · 7 km away
  33. 3.244 km SSE of Adak, Alaska · 1883 days ago · 44 km deep · 39 km away
  34. 1.560 km SSW of Adak, Alaska · 1883 days ago · 36 km deep · 67 km away
  35. 1.669 km WSW of Adak, Alaska · 1883 days ago · 71 km deep · 84 km away
  36. 1.582 km WSW of Adak, Alaska · 1883 days ago · 38 km deep · 95 km away
  37. 1.546 km WSW of Adak, Alaska · 1882 days ago · 75 km deep · 60 km away
  38. 1.982 km W of Adak, Alaska · 1882 days ago · 7 km deep · 98 km away
  39. 1.520 km SSW of Adak, Alaska · 1882 days ago · 74 km deep · 29 km away
  40. 1.559 km SE of Adak, Alaska · 1882 days ago · 23 km deep · 50 km away
  41. 1.677 km SW of Adak, Alaska · 1881 days ago · 29 km deep · 89 km away
  42. 1.765 km SE of Adak, Alaska · 1881 days ago · 24 km deep · 54 km away
  43. 3.672 km SE of Adak, Alaska · 1880 days ago · 30 km deep · 61 km away
  44. 1.565 km SSE of Adak, Alaska · 1880 days ago · 20 km deep · 57 km away
  45. 1.977 km NE of Adak, Alaska · 1880 days ago · 138 km deep · 72 km away
  46. 2.068 km W of Adak, Alaska · 1879 days ago · 73 km deep · 83 km away
  47. 2.874 km SW of Adak, Alaska · 1879 days ago · 61 km deep · 85 km away
  48. 1.969 km SE of Adak, Alaska · 1879 days ago · 39 km deep · 58 km away
  49. 1.545 km SSW of Adak, Alaska · 1879 days ago · 63 km deep · 53 km away
  50. 3.072 km ESE of Adak, Alaska · 1878 days ago · 62 km deep · 57 km away
  51. 1.867 km WSW of Atka, Alaska · 1878 days ago · 69 km deep · 93 km away
  52. 1.646 km SW of Adak, Alaska · 1878 days ago · 48 km deep · 57 km away
  53. 1.684 km WSW of Adak, Alaska · 1877 days ago · 13 km deep · 97 km away
  54. 1.584 km WSW of Adak, Alaska · 1877 days ago · 24 km deep · 97 km away
  55. 1.6101 km SSE of Adak, Alaska · 1877 days ago · 24 km deep · 93 km away
  56. 1.582 km W of Adak, Alaska · 1876 days ago · 7 km deep · 97 km away
  57. 1.687 km WSW of Adak, Alaska · 1876 days ago · 13 km deep · 99 km away
  58. 1.682 km WSW of Adak, Alaska · 1876 days ago · 25 km deep · 95 km away
  59. 1.9Andreanof Islands, Aleutian Islands, Alaska · 1876 days ago · 26 km deep · 68 km away
  60. 1.774 km SSE of Adak, Alaska · 1876 days ago · 25 km deep · 68 km away

The first 60 of 190.

Before

  1. 1.570 km S of Adak, Alaska · 1889 days ago · 21 km deep · 68 km away
  2. 1.776 km ENE of Adak, Alaska · 1889 days ago · 179 km deep · 64 km away
  3. 1.587 km S of Adak, Alaska · 1889 days ago · 39 km deep · 84 km away
  4. 1.650 km ENE of Adak, Alaska · 1890 days ago · 148 km deep · 40 km away
  5. 2.045 km WSW of Adak, Alaska · 1890 days ago · 70 km deep · 58 km away
  6. 3.988 km S of Adak, Alaska · 1890 days ago · 23 km deep · 85 km away
  7. 3.892 km S of Adak, Alaska · 1890 days ago · 14 km deep · 89 km away
  8. 1.966 km WSW of Adak, Alaska · 1890 days ago · 75 km deep · 80 km away
  9. 3.079 km ENE of Adak, Alaska · 1890 days ago · 191 km deep · 69 km away
  10. 3.889 km S of Adak, Alaska · 1890 days ago · 16 km deep · 86 km away
  11. 4.087 km S of Adak, Alaska · 1890 days ago · 10 km deep · 86 km away
  12. 1.978 km ENE of Adak, Alaska · 1890 days ago · 166 km deep · 67 km away
  13. 3.647 km SE of Adak, Alaska · 1890 days ago · 48 km deep · 38 km away
  14. 2.172 km S of Adak, Alaska · 1891 days ago · 26 km deep · 71 km away
  15. 1.773 km SSE of Adak, Alaska · 1891 days ago · 25 km deep · 68 km away
  16. 2.776 km S of Adak, Alaska · 1891 days ago · 20 km deep · 74 km away
  17. 3.869 km S of Adak, Alaska · 1891 days ago · 35 km deep · 67 km away
  18. 2.856 km E of Adak, Alaska · 1891 days ago · 67 km deep · 41 km away
  19. 2.291 km ESE of Adak, Alaska · 1892 days ago · 45 km deep · 76 km away
  20. 2.063 km WSW of Adak, Alaska · 1892 days ago · 65 km deep · 77 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0219kb9q55. Read Mon, Sep 28, 2026, 3:56 PM UTC.