Alaska earthquakes

M1.6 earthquake 79 km NW of Karluk, Alaska

A magnitude 1.6 earthquake struck 79 km NW of Karluk, Alaska on Wed, Oct 20, 2021, 9:44 AM AKDT (17:44 UTC), 95 km (59 mi) below the surface.

A larger quake followed: M2.5 65 km ESE of Egegik, Alaska. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
1.6 (ml), micro
Local time
UTC
2021-10-20 17:44:59 UTC
Depth
94.9 km (59.0 mi), intermediate-depth
Epicenter
58.090° N, 155.367° 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
33

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 98 in the 60 days after this one and 54 in the 30 days before it.

After

  1. 2.565 km ESE of Egegik, Alaska · 1798 days ago · 137 km deep · 67 km away
  2. 1.886 km N of Karluk, Alaska · 1798 days ago · 1 km deep · 51 km away
  3. 2.191 km ESE of Egegik, Alaska · 1798 days ago · 129 km deep · 40 km away
  4. 2.124 km WSW of Karluk, Alaska · 1798 days ago · 49 km deep · 78 km away
  5. 1.980 km ESE of Egegik, Alaska · 1797 days ago · 126 km deep · 48 km away
  6. 1.947 km W of Karluk, Alaska · 1797 days ago · 65 km deep · 60 km away
  7. 2.520 km N of Karluk, Alaska · 1795 days ago · 37 km deep · 66 km away
  8. 1.788 km WNW of Aleneva, Alaska · 1794 days ago · 88 km deep · 77 km away
  9. 1.939 km W of Karluk, Alaska · 1794 days ago · 57 km deep · 61 km away
  10. 2.141 km WNW of Karluk, Alaska · 1793 days ago · 62 km deep · 43 km away
  11. 1.819 km N of Karluk, Alaska · 1792 days ago · 61 km deep · 67 km away
  12. 1.560 km WNW of Karluk, Alaska · 1791 days ago · 77 km deep · 46 km away
  13. 1.679 km S of Kokhanok, Alaska · 1791 days ago · 124 km deep · 77 km away
  14. 2.432 km E of King Salmon, Alaska · 1791 days ago · 190 km deep · 83 km away
  15. 1.963 km SE of Egegik, Alaska · 1790 days ago · 121 km deep · 70 km away
  16. 1.828 km SSW of Karluk, Alaska · 1788 days ago · 53 km deep · 94 km away
  17. 2.655 km SE of King Salmon, Alaska · 1787 days ago · 155 km deep · 46 km away
  18. 1.643 km WNW of Karluk, Alaska · 1787 days ago · 72 km deep · 41 km away
  19. 1.721 km SSE of Karluk, Alaska · 1787 days ago · 36 km deep · 99 km away
  20. 2.190 km SE of King Salmon, Alaska · 1785 days ago · 119 km deep · 19 km away
  21. 2.283 km ESE of Egegik, Alaska · 1785 days ago · 125 km deep · 52 km away
  22. 1.980 km S of Kokhanok, Alaska · 1783 days ago · 138 km deep · 74 km away
  23. 1.642 km SW of Karluk, Alaska · 1783 days ago · 56 km deep · 94 km away
  24. 1.870 km ESE of King Salmon, Alaska · 1783 days ago · 139 km deep · 37 km away
  25. 1.665 km WNW of Aleneva, Alaska · 1783 days ago · 85 km deep · 93 km away
  26. 1.772 km ENE of Ugashik, Alaska · 1782 days ago · 119 km deep · 65 km away
  27. 1.527 km SW of Karluk, Alaska · 1781 days ago · 49 km deep · 88 km away
  28. 1.530 km SW of Karluk, Alaska · 1781 days ago · 52 km deep · 88 km away
  29. 1.534 km SW of Karluk, Alaska · 1781 days ago · 56 km deep · 84 km away
  30. 1.552 km WSW of Karluk, Alaska · 1781 days ago · 64 km deep · 75 km away
  31. 1.565 km W of Karluk, Alaska · 1779 days ago · 77 km deep · 50 km away
  32. 1.689 km NNW of Karluk, Alaska · 1779 days ago · 107 km deep · 38 km away
  33. 1.592 km WNW of Karluk, Alaska · 1777 days ago · 3 km deep · 46 km away
  34. 3.1100 km N of Karluk, Alaska · 1776 days ago · 6 km deep · 58 km away
  35. 1.530 km W of Karluk, Alaska · 1773 days ago · 56 km deep · 66 km away
  36. 1.687 km ESE of Ugashik, Alaska · 1772 days ago · 18 km deep · 93 km away
  37. 1.664 km S of Kokhanok, Alaska · 1772 days ago · 127 km deep · 98 km away
  38. 1.886 km NNW of Karluk, Alaska · 1771 days ago · 98 km deep · 39 km away
  39. 2.031 km NNW of Karluk, Alaska · 1770 days ago · 72 km deep · 53 km away
  40. 1.666 km NW of Karluk, Alaska · 1769 days ago · 85 km deep · 17 km away
  41. 1.663 km E of Ugashik, Alaska · 1768 days ago · 4 km deep · 80 km away
  42. 1.862 km E of Ugashik, Alaska · 1768 days ago · 3 km deep · 80 km away
  43. 3.222 km SSE of King Salmon, Alaska · 1767 days ago · 192 km deep · 82 km away
  44. 1.765 km WSW of Karluk, Alaska · 1767 days ago · 66 km deep · 75 km away
  45. 1.562 km NNW of Karluk, Alaska · 1766 days ago · 82 km deep · 41 km away
  46. 4.362 km SE of King Salmon, Alaska · 1766 days ago · 144 km deep · 40 km away
  47. 1.836 km SE of Egegik, Alaska · 1766 days ago · 10 km deep · 93 km away
  48. 1.637 km SE of Egegik, Alaska · 1766 days ago · 6 km deep · 92 km away
  49. 2.357 km NE of Ugashik, Alaska · 1766 days ago · 138 km deep · 79 km away
  50. 2.914 km WNW of Larsen Bay, Alaska · 1765 days ago · 41 km deep · 88 km away
  51. 1.513 km ENE of Karluk, Alaska · 1765 days ago · 42 km deep · 86 km away
  52. 1.689 km WNW of Aleneva, Alaska · 1764 days ago · 86 km deep · 84 km away
  53. 1.983 km ESE of Egegik, Alaska · 1764 days ago · 128 km deep · 51 km away
  54. 2.065 km W of Karluk, Alaska · 1764 days ago · 86 km deep · 56 km away
  55. 1.759 km W of Karluk, Alaska · 1762 days ago · 70 km deep · 63 km away
  56. 1.670 km NNE of Karluk, Alaska · 1762 days ago · 69 km deep · 68 km away
  57. 1.959 km SE of King Salmon, Alaska · 1761 days ago · 153 km deep · 42 km away
  58. 1.890 km ESE of Ugashik, Alaska · 1761 days ago · 6 km deep · 92 km away
  59. 1.721 km N of Karluk, Alaska · 1760 days ago · 65 km deep · 65 km away
  60. 2.533 km NNW of Karluk, Alaska · 1759 days ago · 72 km deep · 48 km away · felt by 1

The first 60 of 98.

Before

  1. 2.620 km NNE of Karluk, Alaska · 1799 days ago · 53 km deep · 71 km away
  2. 1.588 km ENE of Ugashik, Alaska · 1799 days ago · 95 km deep · 55 km away
  3. 2.172 km WSW of Karluk, Alaska · 1800 days ago · 80 km deep · 87 km away
  4. 1.586 km WSW of Karluk, Alaska · 1800 days ago · 6 km deep · 88 km away
  5. 2.511 km ESE of Karluk, Alaska · 1800 days ago · 47 km deep · 90 km away
  6. 1.888 km SSE of King Salmon, Alaska · 1801 days ago · 9 km deep · 33 km away
  7. 2.155 km ESE of King Salmon, Alaska · 1802 days ago · 154 km deep · 50 km away
  8. 2.074 km W of Karluk, Alaska · 1802 days ago · 102 km deep · 48 km away · felt by 1
  9. 1.973 km NNE of Karluk, Alaska · 1803 days ago · 74 km deep · 70 km away
  10. 2.235 km ESE of King Salmon, Alaska · 1805 days ago · 167 km deep · 70 km away
  11. 2.322 km SE of King Salmon, Alaska · 1805 days ago · 171 km deep · 78 km away
  12. 1.526 km NNE of Karluk, Alaska · 1805 days ago · 47 km deep · 73 km away
  13. 1.769 km W of Karluk, Alaska · 1806 days ago · 88 km deep · 68 km away
  14. 1.670 km WNW of Aleneva, Alaska · 1806 days ago · 76 km deep · 83 km away
  15. 3.184 km NW of Karluk, Alaska · 1806 days ago · 115 km deep · 15 km away
  16. 1.932 km SSW of Karluk, Alaska · 1807 days ago · 43 km deep · 93 km away
  17. 2.465 km WSW of Karluk, Alaska · 1807 days ago · 81 km deep · 72 km away
  18. 2.062 km ESE of Egegik, Alaska · 1807 days ago · 133 km deep · 63 km away
  19. 1.782 km W of Karluk, Alaska · 1808 days ago · 79 km deep · 68 km away
  20. 1.739 km NW of Karluk, Alaska · 1808 days ago · 80 km deep · 41 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021dguukci. Read Wed, Sep 23, 2026, 5:43 AM UTC.