Alaska earthquakes

M1.6 earthquake 4 km SSW of Trapper Creek, Alaska

A magnitude 1.6 earthquake struck 4 km SSW of Trapper Creek, Alaska on Mon, Sep 20, 2021, 9:53 PM AKDT (05:53 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.9 35 km NE of Chase, Alaska. This one was a foreshock.

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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
2021-09-21 05:53:53 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
62.281° N, 150.276° 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
30

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 135 in the 30 days before it.

After

  1. 2.66 km NW of Point MacKenzie, Alaska · 1835 days ago · 14 km deep · 98 km away
  2. 1.516 km SW of Susitna, Alaska · 1834 days ago · 48 km deep · 96 km away
  3. 1.770 km ENE of Chase, Alaska · 1834 days ago · 59 km deep · 87 km away
  4. 1.57 km E of Talkeetna, Alaska · 1834 days ago · 12 km deep · 16 km away
  5. 1.670 km SE of Denali National Park, Alaska · 1834 days ago · 115 km deep · 99 km away
  6. 1.57 km NW of Skwentna, Alaska · 1834 days ago · 82 km deep · 70 km away
  7. 1.930 km NW of Susitna, Alaska · 1834 days ago · 62 km deep · 68 km away
  8. 1.717 km ENE of Chase, Alaska · 1833 days ago · 61 km deep · 36 km away
  9. 1.75 km NNE of Susitna, Alaska · 1833 days ago · 54 km deep · 77 km away
  10. 1.612 km N of Fishhook, Alaska · 1832 days ago · 9 km deep · 72 km away
  11. 1.545 km SSW of Cantwell, Alaska · 1832 days ago · 78 km deep · 95 km away
  12. 1.86 km SSW of Willow, Alaska · 1832 days ago · 40 km deep · 66 km away
  13. 1.59 km SW of Big Lake, Alaska · 1832 days ago · 40 km deep · 91 km away
  14. 1.511 km S of Willow, Alaska · 1832 days ago · 42 km deep · 72 km away
  15. 3.167 km N of Petersville, Alaska · 1832 days ago · 116 km deep · 92 km away
  16. 1.554 km N of Petersville, Alaska · 1832 days ago · 113 km deep · 83 km away
  17. 2.010 km SW of Trapper Creek, Alaska · 1832 days ago · 58 km deep · 6 km away
  18. 1.89 km NNW of Big Lake, Alaska · 1832 days ago · 44 km deep · 77 km away
  19. 1.733 km SW of Petersville, Alaska · 1831 days ago · 86 km deep · 52 km away
  20. 2.151 km NNW of Petersville, Alaska · 1831 days ago · 110 km deep · 84 km away
  21. 1.759 km ENE of Susitna North, Alaska · 1831 days ago · 4 km deep · 76 km away
  22. 1.729 km NNW of Susitna, Alaska · 1831 days ago · 61 km deep · 62 km away
  23. 1.931 km WNW of Susitna, Alaska · 1831 days ago · 71 km deep · 87 km away
  24. 1.5Central Alaska · 1831 days ago · 109 km deep · 82 km away
  25. 1.971 km SE of Denali National Park, Alaska · 1831 days ago · 116 km deep · 98 km away
  26. 2.130 km SSW of Skwentna, Alaska · 1831 days ago · 71 km deep · 93 km away
  27. 1.657 km WNW of Petersville, Alaska · 1830 days ago · 0 km deep · 91 km away
  28. 2.322 km ESE of Susitna North, Alaska · 1830 days ago · 20 km deep · 47 km away
  29. 2.76 km WSW of Meadow Lakes, Alaska · 1830 days ago · 19 km deep · 82 km away · felt by 3
  30. 1.646 km N of Petersville, Alaska · 1830 days ago · 33 km deep · 76 km away
  31. 2.23 km S of Petersville, Alaska · 1830 days ago · 54 km deep · 33 km away
  32. 1.617 km ENE of Willow, Alaska · 1830 days ago · 39 km deep · 63 km away
  33. 2.131 km NNW of Petersville, Alaska · 1830 days ago · 90 km deep · 63 km away
  34. 1.645 km NNW of Chickaloon, Alaska · 1830 days ago · 19 km deep · 84 km away
  35. 2.270 km N of Petersville, Alaska · 1830 days ago · 117 km deep · 96 km away
  36. 1.937 km ENE of Susitna North, Alaska · 1829 days ago · 47 km deep · 54 km away
  37. 1.652 km N of Chase, Alaska · 1829 days ago · 85 km deep · 73 km away
  38. 1.626 km NW of Willow, Alaska · 1829 days ago · 59 km deep · 42 km away
  39. 1.757 km N of Petersville, Alaska · 1828 days ago · 106 km deep · 84 km away
  40. 1.641 km WNW of Skwentna, Alaska · 1828 days ago · 105 km deep · 95 km away
  41. 2.928 km SSW of Skwentna, Alaska · 1828 days ago · 92 km deep · 92 km away
  42. 1.812 km WSW of Big Lake, Alaska · 1828 days ago · 43 km deep · 90 km away
  43. 2.15 km WNW of Fishhook, Alaska · 1828 days ago · 20 km deep · 75 km away
  44. 1.840 km WNW of Skwentna, Alaska · 1828 days ago · 104 km deep · 95 km away · felt by 1
  45. 1.824 km WNW of Susitna, Alaska · 1828 days ago · 62 km deep · 77 km away
  46. 1.927 km NW of Susitna, Alaska · 1828 days ago · 47 km deep · 66 km away
  47. 1.611 km NE of Willow, Alaska · 1827 days ago · 22 km deep · 54 km away
  48. 1.638 km S of Skwentna, Alaska · 1827 days ago · 80 km deep · 89 km away
  49. 3.026 km WSW of Trapper Creek, Alaska · 1827 days ago · 0 km deep · 23 km away · felt by 2
  50. 1.569 km NNE of Petersville, Alaska · 1827 days ago · 109 km deep · 92 km away
  51. 1.737 km WNW of Petersville, Alaska · 1826 days ago · 6 km deep · 71 km away
  52. 1.756 km N of Chase, Alaska · 1826 days ago · 72 km deep · 77 km away
  53. 1.515 km S of Susitna North, Alaska · 1826 days ago · 35 km deep · 35 km away
  54. 1.539 km NE of Chase, Alaska · 1826 days ago · 15 km deep · 60 km away
  55. 1.768 km N of Petersville, Alaska · 1825 days ago · 126 km deep · 95 km away
  56. 1.939 km WNW of Petersville, Alaska · 1825 days ago · 6 km deep · 73 km away
  57. 1.643 km NE of Susitna North, Alaska · 1825 days ago · 8 km deep · 57 km away
  58. 1.618 km WNW of Petersville, Alaska · 1825 days ago · 88 km deep · 53 km away
  59. 1.653 km N of Sutton-Alpine, Alaska · 1825 days ago · 30 km deep · 77 km away
  60. 2.17 km NNE of Big Lake, Alaska · 1825 days ago · 33 km deep · 81 km away · felt by 1

The first 60 of at least 201.

Before

  1. 1.741 km WNW of Skwentna, Alaska · 1835 days ago · 106 km deep · 98 km away
  2. 1.562 km SE of Denali National Park, Alaska · 1835 days ago · 131 km deep · 100 km away
  3. 1.815 km WNW of Fishhook, Alaska · 1837 days ago · 37 km deep · 66 km away
  4. 1.862 km N of Petersville, Alaska · 1837 days ago · 115 km deep · 91 km away
  5. 1.98 km NNE of Susitna, Alaska · 1837 days ago · 26 km deep · 75 km away
  6. 1.911 km NNE of Meadow Lakes, Alaska · 1838 days ago · 30 km deep · 73 km away
  7. 1.622 km NW of Susitna, Alaska · 1838 days ago · 48 km deep · 73 km away
  8. 1.560 km N of Chickaloon, Alaska · 1838 days ago · 35 km deep · 88 km away
  9. 2.154 km NNW of Petersville, Alaska · 1838 days ago · 125 km deep · 88 km away
  10. 1.520 km ESE of Chase, Alaska · 1838 days ago · 14 km deep · 32 km away
  11. 1.66 km NW of Susitna, Alaska · 1838 days ago · 31 km deep · 79 km away
  12. 1.951 km E of Susitna North, Alaska · 1838 days ago · 31 km deep · 73 km away
  13. 1.522 km N of Sutton-Alpine, Alaska · 1838 days ago · 19 km deep · 82 km away
  14. 1.762 km N of Petersville, Alaska · 1838 days ago · 119 km deep · 93 km away
  15. 1.531 km NNW of Susitna, Alaska · 1838 days ago · 57 km deep · 59 km away
  16. 1.561 km N of Petersville, Alaska · 1838 days ago · 119 km deep · 90 km away
  17. 2.052 km NNE of Chase, Alaska · 1839 days ago · 69 km deep · 73 km away
  18. 1.842 km SSW of Cantwell, Alaska · 1839 days ago · 77 km deep · 98 km away
  19. 2.858 km SSW of Cantwell, Alaska · 1839 days ago · 71 km deep · 82 km away
  20. 1.514 km ESE of Susitna North, Alaska · 1839 days ago · 65 km deep · 40 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021c4p69hr. Read Wed, Sep 30, 2026, 12:36 AM UTC.