Alaska earthquakes

M1.5 earthquake Central Alaska

A magnitude 1.5 earthquake struck in Central Alaska on Mon, Sep 27, 2021, 7:40 PM AKDT (03:40 UTC), 117 km (73 mi) below the surface.

Automatic solution: the magnitude and location may still be revised.

A larger quake followed: M4.1 57 km S of Denali National 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
1.5 (ml), micro
Local time
UTC
2021-09-28 03:40:44 UTC
Depth
117.1 km (72.8 mi), intermediate-depth
Epicenter
63.263° N, 150.509° W
Region
Alaska
Tsunami flag
No
Status
Automatic solution, may be revised

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

An automatic solution; a seismologist may revise it.

Stations used
9

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 109 in the 30 days before it.

After

  1. 1.857 km WSW of Denali Park, Alaska · 1826 days ago · 113 km deep · 46 km away
  2. 1.669 km ESE of Denali National Park, Alaska · 1825 days ago · 116 km deep · 2 km away
  3. 1.569 km NNE of Petersville, Alaska · 1825 days ago · 109 km deep · 18 km away
  4. 2.364 km SE of Denali National Park, Alaska · 1825 days ago · 128 km deep · 13 km away
  5. 1.8Central Alaska · 1824 days ago · 135 km deep · 19 km away
  6. 1.737 km WNW of Petersville, Alaska · 1824 days ago · 6 km deep · 86 km away
  7. 1.838 km SW of Cantwell, Alaska · 1824 days ago · 69 km deep · 59 km away
  8. 1.756 km N of Chase, Alaska · 1824 days ago · 72 km deep · 47 km away
  9. 1.625 km SW of Cantwell, Alaska · 1824 days ago · 86 km deep · 57 km away
  10. 1.539 km NE of Chase, Alaska · 1824 days ago · 15 km deep · 75 km away
  11. 1.816 km S of Denali National Park, Alaska · 1824 days ago · 5 km deep · 63 km away
  12. 1.768 km N of Petersville, Alaska · 1824 days ago · 126 km deep · 19 km away
  13. 1.939 km WNW of Petersville, Alaska · 1824 days ago · 6 km deep · 88 km away
  14. 1.618 km WNW of Petersville, Alaska · 1824 days ago · 88 km deep · 83 km away
  15. 1.745 km N of Petersville, Alaska · 1824 days ago · 36 km deep · 44 km away
  16. 1.544 km NNE of Petersville, Alaska · 1823 days ago · 90 km deep · 42 km away
  17. 2.060 km NNE of Petersville, Alaska · 1823 days ago · 97 km deep · 27 km away
  18. 1.674 km SE of Denali National Park, Alaska · 1823 days ago · 101 km deep · 11 km away
  19. 1.757 km N of Chase, Alaska · 1823 days ago · 81 km deep · 45 km away
  20. 1.536 km WNW of Petersville, Alaska · 1823 days ago · 2 km deep · 81 km away
  21. 1.649 km N of Petersville, Alaska · 1822 days ago · 103 km deep · 40 km away
  22. 1.628 km WNW of Petersville, Alaska · 1821 days ago · 86 km deep · 88 km away
  23. 1.617 km W of Healy, Alaska · 1821 days ago · 116 km deep · 88 km away
  24. 1.632 km NNE of Chase, Alaska · 1821 days ago · 3 km deep · 69 km away
  25. 2.658 km WSW of Cantwell, Alaska · 1820 days ago · 98 km deep · 24 km away
  26. 1.670 km N of Petersville, Alaska · 1820 days ago · 110 km deep · 16 km away
  27. 1.662 km SE of Denali National Park, Alaska · 1820 days ago · 129 km deep · 11 km away
  28. 1.965 km NNE of Petersville, Alaska · 1820 days ago · 109 km deep · 22 km away
  29. 2.060 km NNE of Petersville, Alaska · 1820 days ago · 99 km deep · 27 km away
  30. 1.652 km SSE of Denali National Park, Alaska · 1819 days ago · 8 km deep · 53 km away
  31. 1.677 km ESE of Denali National Park, Alaska · 1819 days ago · 113 km deep · 11 km away
  32. 2.060 km SE of Denali National Park, Alaska · 1819 days ago · 127 km deep · 16 km away
  33. 1.811 km NNE of Cantwell, Alaska · 1819 days ago · 11 km deep · 85 km away
  34. 1.711 km SSE of Denali National Park, Alaska · 1818 days ago · 10 km deep · 62 km away
  35. 1.665 km SE of Denali National Park, Alaska · 1818 days ago · 118 km deep · 13 km away
  36. 2.057 km SSW of Cantwell, Alaska · 1818 days ago · 72 km deep · 61 km away
  37. 2.329 km SSW of Denali National Park, Alaska · 1818 days ago · 10 km deep · 67 km away
  38. 2.153 km SW of Cantwell, Alaska · 1817 days ago · 86 km deep · 44 km away
  39. 2.649 km SSW of Denali National Park, Alaska · 1817 days ago · 5 km deep · 74 km away
  40. 2.154 km NNW of Petersville, Alaska · 1817 days ago · 112 km deep · 40 km away
  41. 2.261 km ESE of Denali National Park, Alaska · 1816 days ago · 129 km deep · 7 km away
  42. 2.445 km N of Petersville, Alaska · 1816 days ago · 109 km deep · 44 km away
  43. 1.619 km ESE of Denali National Park, Alaska · 1816 days ago · 9 km deep · 48 km away
  44. 1.6Central Alaska · 1816 days ago · 87 km deep · 50 km away
  45. 1.654 km NNW of Petersville, Alaska · 1816 days ago · 128 km deep · 49 km away
  46. 2.847 km SSE of Cantwell, Alaska · 1815 days ago · 67 km deep · 95 km away
  47. 1.916 km ENE of Cantwell, Alaska · 1815 days ago · 90 km deep · 95 km away
  48. 1.563 km N of Petersville, Alaska · 1815 days ago · 121 km deep · 27 km away
  49. 1.938 km E of Denali National Park, Alaska · 1815 days ago · 7 km deep · 39 km away
  50. 1.541 km NNW of Petersville, Alaska · 1815 days ago · 98 km deep · 53 km away
  51. 1.554 km NNW of Petersville, Alaska · 1814 days ago · 110 km deep · 54 km away
  52. 1.662 km SE of Denali National Park, Alaska · 1814 days ago · 120 km deep · 28 km away
  53. 2.364 km SE of Denali National Park, Alaska · 1814 days ago · 126 km deep · 17 km away
  54. 1.661 km WSW of Cantwell, Alaska · 1814 days ago · 98 km deep · 18 km away
  55. 1.560 km NNW of Petersville, Alaska · 1813 days ago · 133 km deep · 37 km away
  56. 1.521 km W of Petersville, Alaska · 1813 days ago · 85 km deep · 95 km away
  57. 1.555 km NNE of Petersville, Alaska · 1812 days ago · 97 km deep · 31 km away
  58. 1.650 km NNE of Petersville, Alaska · 1812 days ago · 102 km deep · 37 km away
  59. 1.970 km ESE of Denali National Park, Alaska · 1812 days ago · 121 km deep · 6 km away
  60. 1.543 km NNE of Chase, Alaska · 1812 days ago · 75 km deep · 70 km away

The first 60 of at least 200.

Before

  1. 2.848 km E of Denali National Park, Alaska · 1826 days ago · 0 km deep · 42 km away
  2. 1.79 km WNW of Healy, Alaska · 1827 days ago · 117 km deep · 96 km away
  3. 1.757 km N of Petersville, Alaska · 1827 days ago · 106 km deep · 30 km away
  4. 1.944 km SSE of Denali National Park, Alaska · 1827 days ago · 5 km deep · 45 km away
  5. 1.652 km N of Chase, Alaska · 1828 days ago · 85 km deep · 49 km away
  6. 2.270 km N of Petersville, Alaska · 1828 days ago · 117 km deep · 16 km away
  7. 2.131 km NNW of Petersville, Alaska · 1828 days ago · 90 km deep · 58 km away
  8. 2.23 km S of Petersville, Alaska · 1829 days ago · 54 km deep · 90 km away
  9. 2.221 km ESE of Denali National Park, Alaska · 1829 days ago · 4 km deep · 47 km away
  10. 1.646 km N of Petersville, Alaska · 1829 days ago · 33 km deep · 42 km away
  11. 1.657 km WNW of Petersville, Alaska · 1829 days ago · 0 km deep · 89 km away
  12. 1.768 km SE of Denali National Park, Alaska · 1829 days ago · 114 km deep · 10 km away
  13. 2.061 km ESE of Denali National Park, Alaska · 1829 days ago · 97 km deep · 7 km away
  14. 2.019 km W of Healy, Alaska · 1830 days ago · 124 km deep · 85 km away
  15. 1.971 km SE of Denali National Park, Alaska · 1830 days ago · 116 km deep · 13 km away
  16. 1.5Central Alaska · 1830 days ago · 109 km deep · 48 km away
  17. 1.632 km WSW of Cantwell, Alaska · 1830 days ago · 9 km deep · 51 km away
  18. 2.151 km NNW of Petersville, Alaska · 1830 days ago · 110 km deep · 47 km away
  19. 1.567 km ESE of Denali National Park, Alaska · 1830 days ago · 122 km deep · 6 km away
  20. 1.872 km ESE of Denali National Park, Alaska · 1830 days ago · 121 km deep · 7 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021cg8o0q9. Read Mon, Sep 28, 2026, 12:23 PM UTC.