Alaska earthquakes

M1.6 earthquake 28 km WNW of Ninilchik, Alaska

A magnitude 1.6 earthquake struck 28 km WNW of Ninilchik, Alaska on Wed, Aug 18, 2021, 6:25 AM AKDT (14:25 UTC), 83 km (52 mi) below the surface.

A larger quake followed: M4.7 12 km SSW of Clam Gulch, Alaska. This one was a foreshock.

Ninilchik forecastMore in Alaska

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
2021-08-18 14:25:59 UTC
Depth
83.2 km (51.7 mi), intermediate-depth
Epicenter
60.189° N, 152.092° 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
51

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 200 in the 60 days after this one and at least 200 in the 30 days before it.

After

  1. 2.617 km N of Nikiski, Alaska · 1865 days ago · 64 km deep · 84 km away
  2. 2.433 km SSE of Funny River, Alaska · 1865 days ago · 11 km deep · 81 km away
  3. 1.69 km S of Halibut Cove, Alaska · 1864 days ago · 5 km deep · 89 km away
  4. 1.710 km S of Fox River, Alaska · 1864 days ago · 38 km deep · 77 km away
  5. 2.1Southern Alaska · 1864 days ago · 102 km deep · 45 km away
  6. 1.578 km W of Salamatof, Alaska · 1864 days ago · 124 km deep · 61 km away
  7. 2.739 km NW of Ninilchik, Alaska · 1864 days ago · 75 km deep · 15 km away
  8. 1.833 km E of Pedro Bay, Alaska · 1864 days ago · 125 km deep · 88 km away
  9. 1.561 km W of Happy Valley, Alaska · 1864 days ago · 108 km deep · 45 km away
  10. 1.544 km NW of Ninilchik, Alaska · 1864 days ago · 81 km deep · 18 km away
  11. 1.640 km E of Pedro Bay, Alaska · 1864 days ago · 140 km deep · 82 km away
  12. 1.77 km E of Ninilchik, Alaska · 1863 days ago · 61 km deep · 35 km away
  13. 1.920 km SSE of Fox River, Alaska · 1863 days ago · 36 km deep · 91 km away
  14. 1.561 km WNW of Nanwalek, Alaska · 1863 days ago · 99 km deep · 85 km away
  15. 1.650 km W of Anchor Point, Alaska · 1863 days ago · 84 km deep · 63 km away
  16. 1.753 km E of Pedro Bay, Alaska · 1863 days ago · 115 km deep · 79 km away
  17. 1.745 km WSW of Salamatof, Alaska · 1863 days ago · 97 km deep · 38 km away
  18. 1.53 km NW of Seldovia Village, Alaska · 1863 days ago · 53 km deep · 79 km away
  19. 1.528 km NNE of Fox River, Alaska · 1863 days ago · 42 km deep · 77 km away
  20. 1.648 km WNW of Nanwalek, Alaska · 1863 days ago · 88 km deep · 82 km away
  21. 1.547 km WNW of Happy Valley, Alaska · 1862 days ago · 93 km deep · 26 km away
  22. 1.935 km E of Pedro Bay, Alaska · 1862 days ago · 132 km deep · 87 km away
  23. 1.683 km NW of Ninilchik, Alaska · 1862 days ago · 143 km deep · 55 km away
  24. 1.849 km WNW of Happy Valley, Alaska · 1862 days ago · 106 km deep · 27 km away
  25. 1.767 km E of Port Alsworth, Alaska · 1862 days ago · 138 km deep · 58 km away
  26. 1.638 km ENE of Pedro Bay, Alaska · 1862 days ago · 131 km deep · 83 km away
  27. 1.648 km WNW of Happy Valley, Alaska · 1862 days ago · 92 km deep · 25 km away
  28. 1.612 km WNW of Fox River, Alaska · 1862 days ago · 53 km deep · 61 km away
  29. 1.548 km ENE of Pedro Bay, Alaska · 1861 days ago · 123 km deep · 72 km away
  30. 1.653 km WNW of Nanwalek, Alaska · 1861 days ago · 88 km deep · 88 km away
  31. 1.520 km E of Kasilof, Alaska · 1860 days ago · 54 km deep · 67 km away
  32. 1.943 km E of Pedro Bay, Alaska · 1860 days ago · 128 km deep · 86 km away
  33. 1.969 km E of Port Alsworth, Alaska · 1860 days ago · 138 km deep · 53 km away
  34. 1.664 km WNW of Happy Valley, Alaska · 1859 days ago · 101 km deep · 40 km away
  35. 1.559 km WNW of Anchor Point, Alaska · 1859 days ago · 90 km deep · 47 km away
  36. 1.517 km W of Nanwalek, Alaska · 1859 days ago · 70 km deep · 93 km away
  37. 1.772 km WNW of Happy Valley, Alaska · 1859 days ago · 120 km deep · 47 km away
  38. 1.662 km WNW of Anchor Point, Alaska · 1859 days ago · 109 km deep · 54 km away
  39. 1.6Southern Alaska · 1859 days ago · 117 km deep · 49 km away
  40. 1.550 km W of Nanwalek, Alaska · 1859 days ago · 75 km deep · 98 km away
  41. 1.524 km NNE of Fox River, Alaska · 1859 days ago · 49 km deep · 71 km away
  42. 2.93 km ENE of Kachemak, Alaska · 1859 days ago · 45 km deep · 69 km away · felt by 1
  43. 1.97 km ESE of Ninilchik, Alaska · 1859 days ago · 59 km deep · 35 km away
  44. 2.344 km NW of Ninilchik, Alaska · 1859 days ago · 90 km deep · 19 km away
  45. 2.244 km W of Happy Valley, Alaska · 1858 days ago · 96 km deep · 34 km away
  46. 1.658 km WNW of Nanwalek, Alaska · 1858 days ago · 96 km deep · 79 km away
  47. 2.257 km W of Anchor Point, Alaska · 1858 days ago · 100 km deep · 57 km away
  48. 1.648 km ENE of Pedro Bay, Alaska · 1858 days ago · 129 km deep · 73 km away
  49. 1.67 km SW of Halibut Cove, Alaska · 1857 days ago · 10 km deep · 83 km away
  50. 1.852 km NE of Pedro Bay, Alaska · 1857 days ago · 153 km deep · 70 km away
  51. 2.03 km SE of Nikolaevsk, Alaska · 1857 days ago · 52 km deep · 53 km away
  52. 1.763 km W of Tyonek, Alaska · 1857 days ago · 114 km deep · 95 km away
  53. 1.543 km NW of Ninilchik, Alaska · 1857 days ago · 89 km deep · 18 km away
  54. 1.655 km E of Pedro Bay, Alaska · 1857 days ago · 108 km deep · 72 km away
  55. 1.854 km E of Port Alsworth, Alaska · 1857 days ago · 151 km deep · 69 km away
  56. 2.164 km WNW of Happy Valley, Alaska · 1856 days ago · 116 km deep · 43 km away
  57. 3.615 km WSW of Anchor Point, Alaska · 1856 days ago · 62 km deep · 54 km away · felt by 5
  58. 1.652 km WNW of Nanwalek, Alaska · 1856 days ago · 86 km deep · 78 km away
  59. 2.860 km E of Port Alsworth, Alaska · 1856 days ago · 142 km deep · 63 km away
  60. 2.843 km NW of Ninilchik, Alaska · 1856 days ago · 83 km deep · 16 km away

The first 60 of at least 200.

Before

  1. 2.516 km ESE of Seldovia Village, Alaska · 1865 days ago · 43 km deep · 95 km away
  2. 1.666 km E of Port Alsworth, Alaska · 1865 days ago · 125 km deep · 59 km away
  3. 2.116 km SSE of Soldotna, Alaska · 1865 days ago · 55 km deep · 67 km away
  4. 2.859 km WNW of Anchor Point, Alaska · 1866 days ago · 101 km deep · 44 km away
  5. 1.821 km NNE of Nikiski, Alaska · 1866 days ago · 55 km deep · 92 km away
  6. 1.929 km NE of Pedro Bay, Alaska · 1866 days ago · 157 km deep · 93 km away
  7. 1.647 km WNW of Nanwalek, Alaska · 1866 days ago · 79 km deep · 83 km away
  8. 2.764 km E of Port Alsworth, Alaska · 1866 days ago · 141 km deep · 58 km away
  9. 2.156 km E of Pedro Bay, Alaska · 1866 days ago · 96 km deep · 72 km away
  10. 1.937 km W of Salamatof, Alaska · 1866 days ago · 79 km deep · 48 km away
  11. 1.946 km WNW of Happy Valley, Alaska · 1866 days ago · 94 km deep · 24 km away
  12. 1.618 km NE of Nikiski, Alaska · 1866 days ago · 6 km deep · 89 km away
  13. 1.614 km WSW of Salamatof, Alaska · 1866 days ago · 71 km deep · 52 km away
  14. 1.869 km W of Salamatof, Alaska · 1867 days ago · 122 km deep · 59 km away
  15. 1.765 km WNW of Ninilchik, Alaska · 1867 days ago · 107 km deep · 38 km away
  16. 1.868 km W of Happy Valley, Alaska · 1867 days ago · 113 km deep · 49 km away
  17. 2.241 km ENE of Port Alsworth, Alaska · 1867 days ago · 182 km deep · 85 km away
  18. 2.280 km NW of Ninilchik, Alaska · 1867 days ago · 113 km deep · 52 km away
  19. 1.683 km W of Salamatof, Alaska · 1867 days ago · 123 km deep · 66 km away
  20. 2.422 km W of Nikiski, Alaska · 1867 days ago · 73 km deep · 60 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021akm3dhj. Read Sat, Sep 26, 2026, 7:38 PM UTC.