Alaska earthquakes

M1.6 earthquake 10 km NW of Susitna North, Alaska

A magnitude 1.6 earthquake struck 10 km NW of Susitna North, Alaska on Wed, Oct 20, 2021, 12:45 AM AKDT (08:45 UTC), 56 km (35 mi) below the surface.

A larger quake followed: M3.6 24 km SSW of Petersville, Alaska. This one was a foreshock.

Susitna North forecastMore in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
1.6 (ml), micro
Local time
UTC
2021-10-20 08:45:07 UTC
Depth
55.8 km (34.7 mi), shallow
Epicenter
62.242° N, 149.971° W
Region
Alaska
Felt reports
1
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Stations used
53

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 142 in the 30 days before it.

After

  1. 1.56 km S of Willow, Alaska · 1804 days ago · 41 km deep · 62 km away
  2. 2.519 km S of Susitna North, Alaska · 1804 days ago · 45 km deep · 29 km away
  3. 3.49 km ESE of Susitna North, Alaska · 1804 days ago · 46 km deep · 20 km away · felt by 4
  4. 1.551 km NNW of Petersville, Alaska · 1804 days ago · 110 km deep · 97 km away
  5. 1.962 km NE of Chase, Alaska · 1804 days ago · 63 km deep · 74 km away
  6. 1.861 km NE of Chase, Alaska · 1804 days ago · 52 km deep · 74 km away
  7. 1.564 km NNE of Petersville, Alaska · 1803 days ago · 102 km deep · 95 km away
  8. 1.519 km ENE of Susitna North, Alaska · 1803 days ago · 43 km deep · 26 km away
  9. 1.519 km NNW of Susitna, Alaska · 1803 days ago · 66 km deep · 68 km away
  10. 2.117 km NW of Susitna, Alaska · 1803 days ago · 57 km deep · 74 km away
  11. 1.610 km N of Willow, Alaska · 1803 days ago · 25 km deep · 45 km away
  12. 1.913 km ESE of Skwentna, Alaska · 1803 days ago · 68 km deep · 69 km away
  13. 1.831 km WNW of Petersville, Alaska · 1803 days ago · 95 km deep · 80 km away
  14. 1.5Central Alaska · 1802 days ago · 77 km deep · 65 km away
  15. 1.945 km SW of Cantwell, Alaska · 1802 days ago · 87 km deep · 94 km away
  16. 1.813 km ENE of Skwentna, Alaska · 1802 days ago · 73 km deep · 66 km away
  17. 1.648 km NNW of Petersville, Alaska · 1802 days ago · 115 km deep · 94 km away
  18. 1.656 km SW of Cantwell, Alaska · 1802 days ago · 81 km deep · 89 km away
  19. 1.540 km NNW of Petersville, Alaska · 1801 days ago · 101 km deep · 84 km away
  20. 2.113 km WSW of Big Lake, Alaska · 1801 days ago · 39 km deep · 87 km away
  21. 1.5Central Alaska · 1801 days ago · 101 km deep · 86 km away
  22. 1.741 km N of Chickaloon, Alaska · 1801 days ago · 15 km deep · 75 km away
  23. 1.653 km E of Chase, Alaska · 1801 days ago · 55 km deep · 53 km away
  24. 1.82 km S of Big Lake, Alaska · 1800 days ago · 44 km deep · 83 km away
  25. 1.830 km SE of Skwentna, Alaska · 1800 days ago · 79 km deep · 77 km away
  26. 1.523 km NNW of Skwentna, Alaska · 1800 days ago · 83 km deep · 82 km away
  27. 2.635 km ESE of Susitna North, Alaska · 1800 days ago · 42 km deep · 44 km away
  28. 1.630 km WNW of Petersville, Alaska · 1800 days ago · 91 km deep · 80 km away
  29. 1.52 km SE of Big Lake, Alaska · 1800 days ago · 40 km deep · 82 km away
  30. 1.965 km S of Cantwell, Alaska · 1800 days ago · 65 km deep · 79 km away
  31. 1.825 km NNW of Susitna, Alaska · 1799 days ago · 57 km deep · 64 km away
  32. 1.53 km E of Point MacKenzie, Alaska · 1799 days ago · 12 km deep · 99 km away
  33. 1.825 km NNW of Susitna, Alaska · 1798 days ago · 53 km deep · 69 km away
  34. 2.020 km SE of Skwentna, Alaska · 1798 days ago · 16 km deep · 72 km away
  35. 2.04 km SSE of Big Lake, Alaska · 1798 days ago · 40 km deep · 84 km away
  36. 1.826 km NW of Fishhook, Alaska · 1798 days ago · 29 km deep · 41 km away
  37. 2.58 km NNE of Point MacKenzie, Alaska · 1798 days ago · 38 km deep · 91 km away · felt by 1
  38. 1.526 km N of Skwentna, Alaska · 1798 days ago · 86 km deep · 76 km away
  39. 1.949 km NNW of Petersville, Alaska · 1798 days ago · 108 km deep · 96 km away
  40. 1.631 km SSW of Petersville, Alaska · 1797 days ago · 71 km deep · 53 km away
  41. 1.848 km N of Petersville, Alaska · 1797 days ago · 99 km deep · 89 km away
  42. 1.64 km NNW of Big Lake, Alaska · 1797 days ago · 48 km deep · 76 km away
  43. 2.012 km WSW of Susitna, Alaska · 1797 days ago · 57 km deep · 93 km away
  44. 2.226 km N of Sutton-Alpine, Alaska · 1796 days ago · 0 km deep · 63 km away · felt by 1
  45. 1.721 km S of Skwentna, Alaska · 1795 days ago · 73 km deep · 87 km away
  46. 1.811 km ESE of Susitna North, Alaska · 1795 days ago · 43 km deep · 22 km away
  47. 1.750 km ENE of Chase, Alaska · 1795 days ago · 54 km deep · 56 km away
  48. 1.630 km N of Chickaloon, Alaska · 1795 days ago · 27 km deep · 83 km away
  49. 1.510 km NE of Skwentna, Alaska · 1795 days ago · 75 km deep · 71 km away
  50. 1.630 km NNE of Skwentna, Alaska · 1795 days ago · 67 km deep · 58 km away
  51. 1.525 km NW of Susitna, Alaska · 1794 days ago · 64 km deep · 77 km away
  52. 1.564 km NNE of Petersville, Alaska · 1794 days ago · 101 km deep · 96 km away
  53. 1.729 km NNW of Susitna, Alaska · 1793 days ago · 57 km deep · 62 km away
  54. 2.528 km NNE of Petersville, Alaska · 1793 days ago · 80 km deep · 64 km away
  55. 1.69 km NNW of Big Lake, Alaska · 1793 days ago · 55 km deep · 71 km away
  56. 1.69 km NNW of Big Lake, Alaska · 1793 days ago · 55 km deep · 71 km away
  57. 1.92 km SE of Big Lake, Alaska · 1792 days ago · 43 km deep · 82 km away
  58. 1.925 km ESE of Skwentna, Alaska · 1792 days ago · 3 km deep · 63 km away
  59. 1.517 km SE of Susitna, Alaska · 1792 days ago · 32 km deep · 89 km away
  60. 2.553 km N of Petersville, Alaska · 1792 days ago · 2 km deep · 90 km away

The first 60 of at least 200.

Before

  1. 1.516 km SE of Susitna, Alaska · 1804 days ago · 53 km deep · 93 km away
  2. 1.516 km NNW of Fishhook, Alaska · 1805 days ago · 4 km deep · 52 km away
  3. 1.950 km NNW of Petersville, Alaska · 1805 days ago · 115 km deep · 97 km away
  4. 1.626 km ENE of Skwentna, Alaska · 1805 days ago · 68 km deep · 53 km away
  5. 1.770 km S of Cantwell, Alaska · 1805 days ago · 6 km deep · 86 km away
  6. 1.516 km W of Susitna, Alaska · 1805 days ago · 57 km deep · 90 km away
  7. 3.935 km NE of Chase, Alaska · 1805 days ago · 74 km deep · 50 km away · felt by 33
  8. 1.541 km NNW of Petersville, Alaska · 1806 days ago · 102 km deep · 87 km away
  9. 2.223 km W of Susitna, Alaska · 1806 days ago · 66 km deep · 94 km away
  10. 2.017 km NE of Susitna North, Alaska · 1806 days ago · 46 km deep · 20 km away
  11. 1.57 km SSE of Willow, Alaska · 1806 days ago · 38 km deep · 62 km away
  12. 1.643 km N of Petersville, Alaska · 1806 days ago · 96 km deep · 85 km away
  13. 2.214 km S of Trapper Creek, Alaska · 1806 days ago · 48 km deep · 12 km away
  14. 1.828 km NW of Susitna, Alaska · 1806 days ago · 61 km deep · 73 km away
  15. 1.834 km N of Petersville, Alaska · 1807 days ago · 83 km deep · 72 km away
  16. 1.521 km N of Susitna, Alaska · 1807 days ago · 55 km deep · 63 km away
  17. 2.0Central Alaska · 1808 days ago · 106 km deep · 96 km away
  18. 1.812 km NNE of Houston, Alaska · 1809 days ago · 25 km deep · 58 km away
  19. 1.5Central Alaska · 1809 days ago · 92 km deep · 100 km away
  20. 1.84 km SE of Big Lake, Alaska · 1809 days ago · 37 km deep · 83 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021dgphta2. Read Mon, Sep 28, 2026, 4:33 PM UTC.