Alaska earthquakes

M1.6 earthquake 9 km WNW of Nanwalek, Alaska

A magnitude 1.6 earthquake struck 9 km WNW of Nanwalek, Alaska on Thu, Sep 16, 2021, 8:51 AM AKDT (16:51 UTC), 54 km (33 mi) below the surface.

A larger quake followed: M4.7 12 km SSW of Clam Gulch, 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
2021-09-16 16:51:01 UTC
Depth
53.7 km (33.4 mi), shallow
Epicenter
59.383° N, 152.083° 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
20

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: at least 202 in the 60 days after this one and 171 in the 30 days before it.

After

  1. 1.956 km WNW of Anchor Point, Alaska · 1838 days ago · 94 km deep · 71 km away
  2. 1.551 km WNW of Happy Valley, Alaska · 1838 days ago · 94 km deep · 83 km away
  3. 1.963 km W of Happy Valley, Alaska · 1838 days ago · 118 km deep · 83 km away
  4. 2.644 km ESE of Pedro Bay, Alaska · 1838 days ago · 111 km deep · 79 km away
  5. 1.512 km NNE of Ninilchik, Alaska · 1837 days ago · 56 km deep · 90 km away
  6. 1.629 km SSE of Port Graham, Alaska · 1837 days ago · 6 km deep · 39 km away
  7. 2.060 km SE of Pedro Bay, Alaska · 1837 days ago · 110 km deep · 66 km away
  8. 2.967 km WNW of Happy Valley, Alaska · 1837 days ago · 126 km deep · 90 km away · felt by 1
  9. 1.682 km WSW of Nanwalek, Alaska · 1836 days ago · 79 km deep · 75 km away
  10. 1.556 km WSW of Nanwalek, Alaska · 1836 days ago · 79 km deep · 49 km away
  11. 1.548 km WNW of Happy Valley, Alaska · 1836 days ago · 93 km deep · 78 km away
  12. 1.747 km E of Pedro Bay, Alaska · 1836 days ago · 115 km deep · 83 km away
  13. 1.662 km WNW of Nanwalek, Alaska · 1835 days ago · 85 km deep · 52 km away
  14. 2.245 km WNW of Nanwalek, Alaska · 1835 days ago · 72 km deep · 35 km away
  15. 1.653 km E of Pedro Bay, Alaska · 1835 days ago · 106 km deep · 74 km away
  16. 1.759 km W of Nanwalek, Alaska · 1835 days ago · 90 km deep · 51 km away
  17. 1.744 km E of Pedro Bay, Alaska · 1835 days ago · 130 km deep · 83 km away
  18. 1.544 km WNW of Anchor Point, Alaska · 1835 days ago · 89 km deep · 64 km away
  19. 2.038 km E of Pedro Bay, Alaska · 1834 days ago · 128 km deep · 91 km away
  20. 2.359 km WNW of Ninilchik, Alaska · 1834 days ago · 112 km deep · 95 km away
  21. 1.969 km WNW of Anchor Point, Alaska · 1834 days ago · 101 km deep · 87 km away
  22. 1.868 km WNW of Happy Valley, Alaska · 1834 days ago · 110 km deep · 90 km away
  23. 1.655 km W of Happy Valley, Alaska · 1834 days ago · 92 km deep · 80 km away
  24. 1.640 km WNW of Anchor Point, Alaska · 1834 days ago · 75 km deep · 67 km away
  25. 2.530 km WSW of Nanwalek, Alaska · 1833 days ago · 62 km deep · 23 km away
  26. 1.635 km WSW of Anchor Point, Alaska · 1833 days ago · 78 km deep · 41 km away
  27. 1.863 km WNW of Anchor Point, Alaska · 1833 days ago · 107 km deep · 81 km away
  28. 2.910 km NW of Anchor Point, Alaska · 1833 days ago · 76 km deep · 51 km away · felt by 4
  29. 1.567 km ENE of Pedro Bay, Alaska · 1832 days ago · 105 km deep · 89 km away
  30. 1.757 km W of Anchor Point, Alaska · 1832 days ago · 105 km deep · 65 km away
  31. 1.752 km ENE of Pedro Bay, Alaska · 1832 days ago · 128 km deep · 90 km away
  32. 1.567 km SE of Pedro Bay, Alaska · 1832 days ago · 83 km deep · 58 km away
  33. 1.659 km W of Happy Valley, Alaska · 1832 days ago · 107 km deep · 83 km away
  34. 1.838 km ENE of Pedro Bay, Alaska · 1832 days ago · 132 km deep · 95 km away
  35. 2.039 km W of Nanwalek, Alaska · 1832 days ago · 80 km deep · 30 km away
  36. 1.658 km WNW of Happy Valley, Alaska · 1832 days ago · 97 km deep · 86 km away
  37. 2.326 km NW of Anchor Point, Alaska · 1831 days ago · 85 km deep · 60 km away · felt by 1
  38. 1.647 km W of Anchor Point, Alaska · 1831 days ago · 90 km deep · 56 km away
  39. 1.617 km WNW of Anchor Point, Alaska · 1831 days ago · 71 km deep · 50 km away
  40. 2.137 km W of Nanwalek, Alaska · 1831 days ago · 71 km deep · 28 km away
  41. 1.968 km W of Happy Valley, Alaska · 1831 days ago · 97 km deep · 87 km away
  42. 1.918 km SW of Nanwalek, Alaska · 1831 days ago · 62 km deep · 16 km away
  43. 2.738 km WNW of Anchor Point, Alaska · 1831 days ago · 78 km deep · 65 km away
  44. 2.237 km ESE of Pedro Bay, Alaska · 1830 days ago · 116 km deep · 85 km away
  45. 2.754 km WSW of Anchor Point, Alaska · 1830 days ago · 78 km deep · 46 km away
  46. 1.68 km ENE of Ninilchik, Alaska · 1830 days ago · 56 km deep · 83 km away
  47. 2.254 km ENE of Pedro Bay, Alaska · 1830 days ago · 132 km deep · 91 km away
  48. 2.338 km SE of Fox River, Alaska · 1830 days ago · 48 km deep · 100 km away
  49. 2.116 km WNW of Fox River, Alaska · 1830 days ago · 36 km deep · 77 km away
  50. 1.753 km WNW of Happy Valley, Alaska · 1829 days ago · 97 km deep · 84 km away
  51. 1.560 km WNW of Anchor Point, Alaska · 1829 days ago · 105 km deep · 78 km away
  52. 1.540 km W of Nanwalek, Alaska · 1829 days ago · 87 km deep · 31 km away
  53. 1.668 km W of Nanwalek, Alaska · 1828 days ago · 83 km deep · 59 km away
  54. 2.89 km SSW of Anchor Point, Alaska · 1828 days ago · 54 km deep · 37 km away · felt by 1
  55. 1.515 km WSW of Nanwalek, Alaska · 1828 days ago · 65 km deep · 11 km away
  56. 1.764 km SW of Nanwalek, Alaska · 1828 days ago · 72 km deep · 62 km away
  57. 1.971 km WSW of Nanwalek, Alaska · 1828 days ago · 72 km deep · 64 km away
  58. 1.758 km ENE of Pedro Bay, Alaska · 1828 days ago · 118 km deep · 89 km away
  59. 1.633 km ESE of Pedro Bay, Alaska · 1828 days ago · 125 km deep · 90 km away
  60. 2.215 km W of Ninilchik, Alaska · 1828 days ago · 58 km deep · 77 km away

The first 60 of at least 202.

Before

  1. 1.547 km WNW of Anchor Point, Alaska · 1839 days ago · 84 km deep · 63 km away
  2. 1.868 km W of Happy Valley, Alaska · 1839 days ago · 113 km deep · 87 km away
  3. 1.561 km ESE of Pedro Bay, Alaska · 1839 days ago · 97 km deep · 62 km away
  4. 1.657 km ESE of Pedro Bay, Alaska · 1839 days ago · 111 km deep · 65 km away
  5. 1.559 km WNW of Happy Valley, Alaska · 1840 days ago · 97 km deep · 89 km away
  6. 1.923 km W of Happy Valley, Alaska · 1840 days ago · 77 km deep · 64 km away
  7. 1.574 km SW of Nanwalek, Alaska · 1840 days ago · 59 km deep · 71 km away
  8. 1.971 km E of Port Alsworth, Alaska · 1840 days ago · 128 km deep · 100 km away
  9. 1.570 km ENE of Pedro Bay, Alaska · 1840 days ago · 104 km deep · 94 km away
  10. 1.614 km SW of Anchor Point, Alaska · 1841 days ago · 57 km deep · 33 km away
  11. 1.967 km W of Nanwalek, Alaska · 1841 days ago · 77 km deep · 59 km away
  12. 1.861 km SE of Pedro Bay, Alaska · 1841 days ago · 98 km deep · 79 km away
  13. 1.814 km ESE of Fritz Creek, Alaska · 1842 days ago · 46 km deep · 69 km away
  14. 1.826 km WNW of Nanwalek, Alaska · 1842 days ago · 70 km deep · 17 km away
  15. 3.114 km E of Fritz Creek, Alaska · 1842 days ago · 46 km deep · 70 km away · felt by 6
  16. 2.560 km ESE of Pedro Bay, Alaska · 1843 days ago · 100 km deep · 63 km away
  17. 1.861 km WNW of Nanwalek, Alaska · 1843 days ago · 97 km deep · 51 km away
  18. 2.055 km ESE of Pope-Vannoy Landing, Alaska · 1843 days ago · 123 km deep · 90 km away
  19. 1.753 km ENE of Pedro Bay, Alaska · 1843 days ago · 127 km deep · 84 km away
  20. 1.664 km WNW of Nanwalek, Alaska · 1843 days ago · 98 km deep · 55 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021bwm0r89. Read Tue, Sep 29, 2026, 3:46 AM UTC.