Alaska earthquakes

M1.8 earthquake 24 km WNW of Susitna, Alaska

A magnitude 1.8 earthquake struck 24 km WNW of Susitna, Alaska on Mon, Sep 27, 2021, 10:37 PM AKDT (06:37 UTC), 62 km (38 mi) below the surface.

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

A larger quake followed: M3.4 15 km WSW of Willow, Alaska. This one was a foreshock.

Willow 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
2021-09-28 06:37:20 UTC
Depth
61.9 km (38.5 mi), shallow
Epicenter
61.658° N, 150.908° 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
28

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 201 in the 60 days after this one and 145 in the 30 days before it.

After

  1. 1.653 km WNW of Skwentna, Alaska · 1822 days ago · 124 km deep · 96 km away
  2. 1.927 km NW of Susitna, Alaska · 1822 days ago · 47 km deep · 11 km away
  3. 1.611 km NE of Willow, Alaska · 1822 days ago · 22 km deep · 57 km away
  4. 1.638 km S of Skwentna, Alaska · 1822 days ago · 80 km deep · 22 km away
  5. 3.026 km WSW of Trapper Creek, Alaska · 1822 days ago · 0 km deep · 62 km away · felt by 2
  6. 1.542 km SW of Skwentna, Alaska · 1822 days ago · 102 km deep · 56 km away
  7. 1.539 km SW of Skwentna, Alaska · 1821 days ago · 115 km deep · 59 km away
  8. 1.515 km S of Susitna North, Alaska · 1820 days ago · 35 km deep · 67 km away
  9. 2.17 km NNE of Big Lake, Alaska · 1820 days ago · 33 km deep · 54 km away · felt by 1
  10. 1.847 km S of Skwentna, Alaska · 1820 days ago · 70 km deep · 32 km away
  11. 1.559 km SSW of Skwentna, Alaska · 1820 days ago · 8 km deep · 60 km away
  12. 1.61 km SSE of Big Lake, Alaska · 1820 days ago · 35 km deep · 54 km away
  13. 2.019 km S of Susitna North, Alaska · 1819 days ago · 40 km deep · 68 km away
  14. 2.117 km NW of Skwentna, Alaska · 1819 days ago · 96 km deep · 63 km away
  15. 1.623 km NNW of Beluga, Alaska · 1819 days ago · 75 km deep · 38 km away
  16. 1.736 km S of Skwentna, Alaska · 1819 days ago · 80 km deep · 24 km away
  17. 1.825 km WSW of Point MacKenzie, Alaska · 1819 days ago · 45 km deep · 47 km away
  18. 1.619 km ENE of Nikiski, Alaska · 1819 days ago · 25 km deep · 98 km away
  19. 1.924 km ESE of Skwentna, Alaska · 1819 days ago · 64 km deep · 26 km away
  20. 1.547 km WNW of Skwentna, Alaska · 1819 days ago · 107 km deep · 91 km away
  21. 1.650 km WNW of Tyonek, Alaska · 1819 days ago · 93 km deep · 77 km away
  22. 2.665 km WNW of Beluga, Alaska · 1819 days ago · 136 km deep · 77 km away
  23. 1.545 km WSW of Tyonek, Alaska · 1818 days ago · 78 km deep · 95 km away
  24. 1.611 km NW of Beluga, Alaska · 1818 days ago · 68 km deep · 52 km away
  25. 2.013 km ESE of Susitna, Alaska · 1818 days ago · 51 km deep · 38 km away · felt by 1
  26. 1.710 km WNW of Tyonek, Alaska · 1818 days ago · 85 km deep · 64 km away
  27. 1.854 km SW of Skwentna, Alaska · 1818 days ago · 116 km deep · 64 km away
  28. 1.512 km NNW of Beluga, Alaska · 1818 days ago · 64 km deep · 48 km away
  29. 1.514 km SE of Susitna North, Alaska · 1817 days ago · 29 km deep · 79 km away
  30. 2.79 km SSW of Elmendorf Air Force Base, Alaska · 1816 days ago · 39 km deep · 84 km away · felt by 30
  31. 1.69 km SSW of Elmendorf Air Force Base, Alaska · 1816 days ago · 35 km deep · 82 km away
  32. 1.511 km W of Susitna North, Alaska · 1815 days ago · 4 km deep · 73 km away
  33. 1.55 km NNW of Meadow Lakes, Alaska · 1815 days ago · 51 km deep · 66 km away
  34. 2.135 km S of Skwentna, Alaska · 1815 days ago · 79 km deep · 31 km away
  35. 1.622 km NW of Willow, Alaska · 1814 days ago · 46 km deep · 36 km away
  36. 1.625 km SW of Petersville, Alaska · 1814 days ago · 78 km deep · 78 km away
  37. 1.6Kenai Peninsula, Alaska · 1813 days ago · 77 km deep · 83 km away
  38. 1.857 km WNW of Skwentna, Alaska · 1813 days ago · 121 km deep · 99 km away
  39. 2.0Southern Alaska · 1813 days ago · 120 km deep · 74 km away
  40. 1.59 km NNE of Willow, Alaska · 1813 days ago · 24 km deep · 51 km away
  41. 1.515 km ESE of Tyonek, Alaska · 1813 days ago · 10 km deep · 69 km away
  42. 2.323 km WNW of Susitna, Alaska · 1813 days ago · 62 km deep · 8 km away
  43. 1.511 km N of Point Possession, Alaska · 1813 days ago · 57 km deep · 71 km away
  44. 1.824 km SW of Trapper Creek, Alaska · 1812 days ago · 11 km deep · 58 km away
  45. 2.35 km W of Houston, Alaska · 1812 days ago · 52 km deep · 53 km away
  46. 1.633 km SSW of Skwentna, Alaska · 1812 days ago · 90 km deep · 43 km away
  47. 1.727 km SW of Skwentna, Alaska · 1812 days ago · 99 km deep · 48 km away
  48. 2.27 km SE of Point Possession, Alaska · 1812 days ago · 36 km deep · 88 km away
  49. 1.550 km NW of Skwentna, Alaska · 1811 days ago · 105 km deep · 94 km away
  50. 2.74 km ENE of Big Lake, Alaska · 1811 days ago · 34 km deep · 56 km away · felt by 1
  51. 1.564 km W of Tyonek, Alaska · 1811 days ago · 1 km deep · 97 km away
  52. 1.8Southern Alaska · 1811 days ago · 3 km deep · 96 km away
  53. 1.563 km NW of Beluga, Alaska · 1810 days ago · 103 km deep · 63 km away
  54. 1.511 km SW of Tyonek, Alaska · 1810 days ago · 66 km deep · 77 km away
  55. 1.643 km WNW of Skwentna, Alaska · 1810 days ago · 104 km deep · 85 km away
  56. 1.529 km NNW of Susitna, Alaska · 1809 days ago · 53 km deep · 21 km away
  57. 2.42 km ESE of Big Lake, Alaska · 1809 days ago · 48 km deep · 55 km away
  58. 2.065 km W of Tyonek, Alaska · 1809 days ago · 120 km deep · 98 km away
  59. 2.815 km N of Fishhook, Alaska · 1809 days ago · 7 km deep · 90 km away
  60. 1.623 km E of Susitna North, Alaska · 1809 days ago · 52 km deep · 97 km away

The first 60 of at least 201.

Before

  1. 1.840 km WNW of Skwentna, Alaska · 1822 days ago · 104 km deep · 82 km away · felt by 1
  2. 2.15 km WNW of Fishhook, Alaska · 1822 days ago · 20 km deep · 84 km away
  3. 1.812 km WSW of Big Lake, Alaska · 1823 days ago · 43 km deep · 44 km away
  4. 2.928 km SSW of Skwentna, Alaska · 1823 days ago · 92 km deep · 42 km away
  5. 1.522 km N of Beluga, Alaska · 1823 days ago · 59 km deep · 36 km away
  6. 1.641 km WNW of Skwentna, Alaska · 1823 days ago · 105 km deep · 84 km away
  7. 1.626 km NW of Willow, Alaska · 1823 days ago · 59 km deep · 38 km away
  8. 1.529 km N of Beluga, Alaska · 1823 days ago · 15 km deep · 32 km away
  9. 1.514 km W of Point Possession, Alaska · 1823 days ago · 20 km deep · 80 km away
  10. 1.617 km ENE of Willow, Alaska · 1825 days ago · 39 km deep · 64 km away
  11. 2.23 km S of Petersville, Alaska · 1825 days ago · 54 km deep · 90 km away
  12. 2.76 km WSW of Meadow Lakes, Alaska · 1825 days ago · 19 km deep · 64 km away · felt by 3
  13. 2.322 km ESE of Susitna North, Alaska · 1825 days ago · 20 km deep · 92 km away
  14. 1.642 km SW of Skwentna, Alaska · 1825 days ago · 103 km deep · 57 km away
  15. 2.130 km SSW of Skwentna, Alaska · 1825 days ago · 71 km deep · 38 km away
  16. 2.42 km WSW of Point MacKenzie, Alaska · 1826 days ago · 37 km deep · 58 km away · felt by 1
  17. 1.931 km WNW of Susitna, Alaska · 1826 days ago · 71 km deep · 11 km away
  18. 3.21 km NNE of Point MacKenzie, Alaska · 1826 days ago · 43 km deep · 59 km away · felt by 18
  19. 1.729 km NNW of Susitna, Alaska · 1826 days ago · 61 km deep · 15 km away
  20. 1.812 km SW of Point MacKenzie, Alaska · 1826 days ago · 3 km deep · 61 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021cgafmiw. Read Thu, Sep 24, 2026, 2:21 PM UTC.