Alaska earthquakes

M1.6 earthquake 46 km NNW of Karluk, Alaska

A magnitude 1.6 earthquake struck 46 km NNW of Karluk, Alaska on Sat, Feb 20, 2021, 3:22 AM AKST (12:22 UTC), 71 km (44 mi) below the surface.

A larger quake followed: M1.8 70 km WSW of Karluk, 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
2021-02-20 12:22:26 UTC
Depth
71.2 km (44.2 mi), intermediate-depth
Epicenter
57.939° N, 154.808° 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
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 137 in the 60 days after this one and 62 in the 30 days before it.

After

  1. 1.870 km WSW of Karluk, Alaska · 2042 days ago · 72 km deep · 81 km away
  2. 1.746 km WNW of Akhiok, Alaska · 2041 days ago · 10 km deep · 86 km away
  3. 1.887 km NW of Aleneva, Alaska · 2041 days ago · 77 km deep · 96 km away
  4. 2.443 km NNW of Karluk, Alaska · 2041 days ago · 77 km deep · 4 km away
  5. 1.570 km W of Aleneva, Alaska · 2040 days ago · 73 km deep · 51 km away
  6. 1.632 km W of Port Lions, Alaska · 2040 days ago · 44 km deep · 82 km away
  7. 3.047 km SSW of Karluk, Alaska · 2040 days ago · 56 km deep · 82 km away
  8. 2.156 km WNW of Akhiok, Alaska · 2039 days ago · 46 km deep · 90 km away
  9. 1.557 km WNW of Akhiok, Alaska · 2039 days ago · 55 km deep · 89 km away
  10. 1.856 km WNW of Akhiok, Alaska · 2039 days ago · 65 km deep · 95 km away
  11. 1.668 km WNW of Aleneva, Alaska · 2039 days ago · 79 km deep · 69 km away
  12. 1.684 km NW of Karluk, Alaska · 2038 days ago · 1 km deep · 39 km away
  13. 1.857 km SW of Karluk, Alaska · 2038 days ago · 65 km deep · 87 km away
  14. 1.957 km WNW of Akhiok, Alaska · 2038 days ago · 62 km deep · 92 km away
  15. 2.458 km NNE of Karluk, Alaska · 2037 days ago · 56 km deep · 42 km away
  16. 1.628 km N of Old Harbor, Alaska · 2037 days ago · 35 km deep · 100 km away
  17. 1.856 km WNW of Akhiok, Alaska · 2037 days ago · 47 km deep · 91 km away
  18. 1.668 km N of Karluk, Alaska · 2036 days ago · 75 km deep · 41 km away
  19. 1.653 km N of Karluk, Alaska · 2036 days ago · 67 km deep · 31 km away
  20. 1.957 km WNW of Akhiok, Alaska · 2036 days ago · 56 km deep · 92 km away
  21. 2.681 km ESE of Egegik, Alaska · 2036 days ago · 127 km deep · 81 km away
  22. 1.651 km WNW of Akhiok, Alaska · 2035 days ago · 46 km deep · 95 km away
  23. 1.554 km WNW of Akhiok, Alaska · 2035 days ago · 27 km deep · 91 km away
  24. 2.189 km N of Karluk, Alaska · 2035 days ago · 5 km deep · 47 km away
  25. 1.649 km N of Karluk, Alaska · 2035 days ago · 64 km deep · 31 km away
  26. 2.457 km WNW of Akhiok, Alaska · 2034 days ago · 63 km deep · 88 km away
  27. 2.357 km WNW of Akhiok, Alaska · 2034 days ago · 58 km deep · 92 km away
  28. 2.033 km WNW of Karluk, Alaska · 2033 days ago · 72 km deep · 24 km away
  29. 1.564 km N of Larsen Bay, Alaska · 2031 days ago · 20 km deep · 47 km away
  30. 1.538 km WSW of Port Lions, Alaska · 2030 days ago · 50 km deep · 78 km away
  31. 1.528 km WSW of Port Lions, Alaska · 2030 days ago · 38 km deep · 90 km away
  32. 1.856 km WNW of Akhiok, Alaska · 2030 days ago · 53 km deep · 89 km away
  33. 1.565 km WNW of Aleneva, Alaska · 2029 days ago · 68 km deep · 70 km away
  34. 2.883 km E of Ugashik, Alaska · 2028 days ago · 96 km deep · 84 km away
  35. 1.521 km SW of Karluk, Alaska · 2028 days ago · 10 km deep · 57 km away
  36. 2.938 km NNE of Karluk, Alaska · 2026 days ago · 71 km deep · 34 km away
  37. 1.627 km N of Karluk, Alaska · 2026 days ago · 71 km deep · 28 km away
  38. 1.883 km ESE of Egegik, Alaska · 2026 days ago · 128 km deep · 75 km away
  39. 1.783 km W of Karluk, Alaska · 2026 days ago · 85 km deep · 79 km away
  40. 1.546 km W of Karluk, Alaska · 2026 days ago · 73 km deep · 43 km away
  41. 1.923 km SSW of Karluk, Alaska · 2024 days ago · 25 km deep · 63 km away
  42. 2.369 km W of Karluk, Alaska · 2023 days ago · 12 km deep · 61 km away
  43. 1.984 km E of Ugashik, Alaska · 2022 days ago · 76 km deep · 81 km away
  44. 1.830 km WSW of Karluk, Alaska · 2022 days ago · 61 km deep · 53 km away
  45. 2.387 km NNW of Karluk, Alaska · 2021 days ago · 3 km deep · 42 km away
  46. 1.6Kodiak Island region, Alaska · 2021 days ago · 74 km deep · 6 km away
  47. 2.434 km NNE of Larsen Bay, Alaska · 2021 days ago · 46 km deep · 62 km away
  48. 1.781 km NW of Karluk, Alaska · 2021 days ago · 102 km deep · 41 km away
  49. 1.656 km SW of Karluk, Alaska · 2020 days ago · 26 km deep · 87 km away
  50. 1.632 km W of Port Lions, Alaska · 2020 days ago · 9 km deep · 82 km away
  51. 1.958 km NW of Aleneva, Alaska · 2019 days ago · 70 km deep · 79 km away
  52. 2.053 km ESE of King Salmon, Alaska · 2019 days ago · 164 km deep · 84 km away
  53. 1.552 km WNW of Karluk, Alaska · 2019 days ago · 80 km deep · 26 km away
  54. 1.557 km NNW of Karluk, Alaska · 2019 days ago · 81 km deep · 12 km away
  55. 1.545 km NW of Aleneva, Alaska · 2018 days ago · 64 km deep · 87 km away
  56. 1.979 km SSE of Igiugig, Alaska · 2018 days ago · 147 km deep · 88 km away
  57. 1.955 km WNW of Akhiok, Alaska · 2018 days ago · 56 km deep · 88 km away
  58. 1.6Alaska Peninsula · 2018 days ago · 70 km deep · 89 km away
  59. 2.057 km WNW of Akhiok, Alaska · 2018 days ago · 61 km deep · 92 km away
  60. 1.659 km SE of King Salmon, Alaska · 2018 days ago · 153 km deep · 79 km away

The first 60 of 137.

Before

  1. 2.973 km SE of King Salmon, Alaska · 2042 days ago · 131 km deep · 65 km away
  2. 1.766 km WSW of Karluk, Alaska · 2042 days ago · 65 km deep · 80 km away
  3. 2.566 km WSW of Karluk, Alaska · 2042 days ago · 65 km deep · 78 km away
  4. 2.093 km E of King Salmon, Alaska · 2042 days ago · 137 km deep · 74 km away
  5. 2.143 km NNE of Larsen Bay, Alaska · 2042 days ago · 46 km deep · 59 km away
  6. 2.164 km ENE of Ugashik, Alaska · 2042 days ago · 127 km deep · 98 km away
  7. 2.854 km SSE of King Salmon, Alaska · 2043 days ago · 158 km deep · 89 km away
  8. 1.756 km WNW of Akhiok, Alaska · 2043 days ago · 50 km deep · 92 km away
  9. 2.065 km W of Aleneva, Alaska · 2043 days ago · 64 km deep · 52 km away
  10. 1.557 km SW of Karluk, Alaska · 2044 days ago · 8 km deep · 88 km away
  11. 1.515 km N of Karluk, Alaska · 2044 days ago · 47 km deep · 33 km away
  12. 1.579 km NW of Aleneva, Alaska · 2044 days ago · 72 km deep · 89 km away
  13. 2.087 km W of Karluk, Alaska · 2044 days ago · 98 km deep · 70 km away
  14. 1.883 km SSE of Kokhanok, Alaska · 2044 days ago · 85 km deep · 99 km away
  15. 1.654 km NNW of Karluk, Alaska · 2045 days ago · 4 km deep · 12 km away
  16. 1.856 km WNW of Akhiok, Alaska · 2045 days ago · 49 km deep · 89 km away
  17. 1.657 km WNW of Akhiok, Alaska · 2045 days ago · 46 km deep · 90 km away
  18. 1.685 km NNW of Karluk, Alaska · 2045 days ago · 1 km deep · 39 km away
  19. 2.064 km WNW of Karluk, Alaska · 2046 days ago · 98 km deep · 43 km away
  20. 2.271 km W of Karluk, Alaska · 2046 days ago · 5 km deep · 60 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0212cjoo9c. Read Thu, Sep 24, 2026, 9:43 AM UTC.