Alaska earthquakes

M1.8 earthquake 9 km NNE of Healy, Alaska

A magnitude 1.8 earthquake struck 9 km NNE of Healy, Alaska on Sun, Aug 15, 2021, 3:29 PM AKDT (23:29 UTC), 120 km (75 mi) below the surface.

A larger quake followed: M3.2 44 km WSW of Denali Park, Alaska. This one was a foreshock.

Healy 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
1.8 (ml), micro
Local time
UTC
2021-08-15 23:29:01 UTC
Depth
120.3 km (74.8 mi), intermediate-depth
Epicenter
63.940° N, 148.900° 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
50

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 82 in the 60 days after this one and 35 in the 30 days before it.

After

  1. 2.454 km SW of Harding-Birch Lakes, Alaska · 1866 days ago · 10 km deep · 74 km away
  2. 1.637 km W of Cantwell, Alaska · 1866 days ago · 102 km deep · 69 km away
  3. 1.87 km ENE of McKinley Park, Alaska · 1865 days ago · 111 km deep · 22 km away
  4. 1.834 km W of Anderson, Alaska · 1865 days ago · 2 km deep · 63 km away
  5. 1.647 km WSW of Cantwell, Alaska · 1864 days ago · 100 km deep · 86 km away
  6. 2.923 km ENE of McKinley Park, Alaska · 1863 days ago · 103 km deep · 25 km away
  7. 1.813 km SE of Clear, Alaska, Alaska · 1861 days ago · 11 km deep · 27 km away
  8. 1.563 km ESE of McKinley Park, Alaska · 1860 days ago · 4 km deep · 73 km away
  9. 1.524 km W of Ferry, Alaska · 1860 days ago · 1 km deep · 37 km away
  10. 2.426 km W of Ferry, Alaska · 1860 days ago · 10 km deep · 39 km away
  11. 1.861 km ESE of McKinley Park, Alaska · 1859 days ago · 84 km deep · 69 km away
  12. 1.546 km SW of Cantwell, Alaska · 1858 days ago · 84 km deep · 97 km away
  13. 3.244 km WSW of Denali Park, Alaska · 1852 days ago · 123 km deep · 56 km away
  14. 1.563 km WNW of Cantwell, Alaska · 1851 days ago · 134 km deep · 77 km away
  15. 2.962 km WSW of Ferry, Alaska · 1849 days ago · 14 km deep · 72 km away
  16. 2.017 km NNW of Four Mile Road, Alaska · 1848 days ago · 20 km deep · 91 km away
  17. 1.93 km N of Cantwell, Alaska · 1848 days ago · 3 km deep · 58 km away
  18. 1.550 km W of Cantwell, Alaska · 1847 days ago · 101 km deep · 77 km away
  19. 1.959 km W of Cantwell, Alaska · 1844 days ago · 108 km deep · 84 km away
  20. 1.915 km NE of Cantwell, Alaska · 1843 days ago · 6 km deep · 53 km away · felt by 1
  21. 1.736 km ENE of Ferry, Alaska · 1843 days ago · 13 km deep · 32 km away
  22. 1.781 km ESE of Denali Park, Alaska · 1842 days ago · 2 km deep · 89 km away
  23. 2.062 km W of Cantwell, Alaska · 1841 days ago · 107 km deep · 88 km away
  24. 2.132 km ENE of Cantwell, Alaska · 1841 days ago · 0 km deep · 59 km away
  25. 1.554 km WSW of McKinley Park, Alaska · 1841 days ago · 111 km deep · 65 km away
  26. 1.913 km NE of Healy, Alaska · 1841 days ago · 114 km deep · 5 km away
  27. 2.239 km SSW of Cantwell, Alaska · 1840 days ago · 82 km deep · 98 km away
  28. 2.244 km WSW of Cantwell, Alaska · 1839 days ago · 98 km deep · 90 km away
  29. 1.517 km E of Ferry, Alaska · 1838 days ago · 4 km deep · 13 km away
  30. 2.039 km W of Clear, Alaska, Alaska · 1837 days ago · 13 km deep · 61 km away
  31. 2.89 km SSW of Cantwell, Alaska · 1836 days ago · 84 km deep · 70 km away
  32. 2.132 km SE of Cantwell, Alaska · 1836 days ago · 73 km deep · 87 km away
  33. 2.336 km W of Cantwell, Alaska · 1836 days ago · 103 km deep · 70 km away · felt by 1
  34. 1.912 km SW of Cantwell, Alaska · 1835 days ago · 84 km deep · 72 km away
  35. 2.140 km WSW of Cantwell, Alaska · 1835 days ago · 99 km deep · 83 km away
  36. 2.18 km NW of Anderson, Alaska · 1834 days ago · 3 km deep · 55 km away · felt by 2
  37. 1.639 km WSW of Denali Park, Alaska · 1834 days ago · 121 km deep · 52 km away
  38. 2.049 km ESE of Nenana, Alaska · 1833 days ago · 15 km deep · 61 km away
  39. 1.654 km E of Denali National Park, Alaska · 1832 days ago · 18 km deep · 93 km away · felt by 1
  40. 1.518 km NW of Four Mile Road, Alaska · 1832 days ago · 23 km deep · 91 km away
  41. 1.831 km SW of Cantwell, Alaska · 1832 days ago · 87 km deep · 86 km away
  42. 1.551 km WSW of Cantwell, Alaska · 1830 days ago · 99 km deep · 97 km away
  43. 1.815 km NNE of Healy, Alaska · 1830 days ago · 113 km deep · 6 km away
  44. 1.534 km WSW of Ferry, Alaska · 1830 days ago · 3 km deep · 43 km away
  45. 2.326 km SSW of Cantwell, Alaska · 1830 days ago · 3 km deep · 86 km away
  46. 1.647 km WSW of Cantwell, Alaska · 1829 days ago · 90 km deep · 96 km away
  47. 1.931 km W of Ferry, Alaska · 1829 days ago · 149 km deep · 43 km away
  48. 2.18 km NNE of Cantwell, Alaska · 1829 days ago · 10 km deep · 53 km away
  49. 1.564 km WSW of Ferry, Alaska · 1828 days ago · 9 km deep · 71 km away
  50. 1.984 km SW of Delta Junction, Alaska · 1828 days ago · 68 km deep · 94 km away
  51. 1.632 km WSW of Cantwell, Alaska · 1828 days ago · 9 km deep · 84 km away
  52. 2.019 km W of Healy, Alaska · 1827 days ago · 124 km deep · 26 km away
  53. 1.719 km N of Four Mile Road, Alaska · 1826 days ago · 22 km deep · 93 km away
  54. 2.014 km NW of Ferry, Alaska · 1825 days ago · 139 km deep · 28 km away
  55. 1.79 km WNW of Healy, Alaska · 1824 days ago · 117 km deep · 14 km away
  56. 2.848 km E of Denali National Park, Alaska · 1824 days ago · 0 km deep · 98 km away
  57. 1.857 km WSW of Denali Park, Alaska · 1824 days ago · 113 km deep · 67 km away
  58. 1.574 km E of Cantwell, Alaska · 1824 days ago · 32 km deep · 87 km away
  59. 1.822 km ENE of Denali Park, Alaska · 1823 days ago · 87 km deep · 28 km away
  60. 1.838 km SW of Cantwell, Alaska · 1822 days ago · 69 km deep · 96 km away

The first 60 of 82.

Before

  1. 1.848 km E of Anderson, Alaska · 1867 days ago · 14 km deep · 58 km away
  2. 1.840 km SW of Cantwell, Alaska · 1868 days ago · 90 km deep · 94 km away
  3. 1.844 km ESE of Cantwell, Alaska · 1870 days ago · 73 km deep · 83 km away
  4. 2.512 km ESE of Healy, Alaska · 1871 days ago · 100 km deep · 16 km away
  5. 1.73 km ESE of Healy, Alaska · 1871 days ago · 110 km deep · 11 km away
  6. 2.113 km NE of Healy, Alaska · 1871 days ago · 113 km deep · 5 km away
  7. 3.150 km W of Cantwell, Alaska · 1871 days ago · 3 km deep · 78 km away
  8. 1.837 km WSW of McKinley Park, Alaska · 1872 days ago · 119 km deep · 49 km away
  9. 1.539 km SSE of Cantwell, Alaska · 1878 days ago · 65 km deep · 98 km away
  10. 3.550 km E of Denali National Park, Alaska · 1880 days ago · 17 km deep · 99 km away · felt by 3
  11. 2.941 km SW of Cantwell, Alaska · 1882 days ago · 88 km deep · 97 km away
  12. 1.534 km E of Cantwell, Alaska · 1882 days ago · 7 km deep · 64 km away
  13. 1.624 km ENE of McKinley Park, Alaska · 1883 days ago · 102 km deep · 25 km away
  14. 1.729 km W of Anderson, Alaska · 1885 days ago · 2 km deep · 66 km away
  15. 2.959 km E of Cantwell, Alaska · 1886 days ago · 2 km deep · 74 km away
  16. 1.764 km ESE of Denali National Park, Alaska · 1887 days ago · 9 km deep · 96 km away
  17. 2.458 km W of McKinley Park, Alaska · 1888 days ago · 3 km deep · 65 km away
  18. 2.345 km W of Cantwell, Alaska · 1889 days ago · 106 km deep · 81 km away
  19. 1.937 km WSW of Denali Park, Alaska · 1889 days ago · 118 km deep · 49 km away
  20. 1.540 km SSW of Cantwell, Alaska · 1889 days ago · 77 km deep · 99 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021afsuyyo. Read Sat, Sep 26, 2026, 5:50 AM UTC.