Alaska earthquakes

M1.8 earthquake 23 km W of Petersville, Alaska

A magnitude 1.8 earthquake struck 23 km W of Petersville, Alaska on Sun, Feb 21, 2021, 5:45 PM AKST (02:45 UTC), 89 km (55 mi) below the surface.

A larger quake followed: M3.4 49 km N 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
1.8 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2021-02-22 02:45:27 UTC
Depth
88.8 km (55.2 mi), intermediate-depth
Epicenter
62.478° N, 151.210° 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
54

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 199 in the 60 days after this one and 155 in the 30 days before it.

After

  1. 1.672 km ESE of Denali National Park, Alaska · 2051 days ago · 112 km deep · 95 km away
  2. 1.763 km N of Petersville, Alaska · 2051 days ago · 123 km deep · 66 km away
  3. 1.661 km SE of Denali National Park, Alaska · 2050 days ago · 121 km deep · 75 km away
  4. 3.449 km N of Chase, Alaska · 2050 days ago · 79 km deep · 79 km away · felt by 1
  5. 1.618 km S of Skwentna, Alaska · 2050 days ago · 79 km deep · 73 km away
  6. 1.619 km SSW of Petersville, Alaska · 2050 days ago · 78 km deep · 24 km away
  7. 1.831 km S of Skwentna, Alaska · 2050 days ago · 75 km deep · 86 km away
  8. 1.531 km NE of Chase, Alaska · 2050 days ago · 62 km deep · 81 km away
  9. 1.515 km SSW of Trapper Creek, Alaska · 2049 days ago · 56 km deep · 54 km away
  10. 1.551 km SSE of Denali National Park, Alaska · 2049 days ago · 2 km deep · 70 km away
  11. 1.619 km SE of Skwentna, Alaska · 2049 days ago · 71 km deep · 67 km away
  12. 2.819 km NNE of Willow, Alaska · 2049 days ago · 39 km deep · 94 km away · felt by 1
  13. 1.519 km E of Skwentna, Alaska · 2048 days ago · 67 km deep · 52 km away
  14. 1.766 km WNW of Skwentna, Alaska · 2048 days ago · 140 km deep · 67 km away
  15. 1.829 km WSW of Skwentna, Alaska · 2048 days ago · 99 km deep · 77 km away
  16. 1.634 km NW of Willow, Alaska · 2048 days ago · 57 km deep · 68 km away
  17. 1.729 km NNE of Skwentna, Alaska · 2048 days ago · 71 km deep · 30 km away
  18. 1.828 km NNE of Skwentna, Alaska · 2048 days ago · 83 km deep · 29 km away
  19. 1.530 km E of Chase, Alaska · 2048 days ago · 47 km deep · 87 km away
  20. 1.733 km SSE of Denali National Park, Alaska · 2048 days ago · 10 km deep · 91 km away
  21. 1.536 km NNW of Petersville, Alaska · 2048 days ago · 93 km deep · 38 km away
  22. 1.522 km NNE of Skwentna, Alaska · 2047 days ago · 76 km deep · 34 km away
  23. 1.658 km SSE of Denali National Park, Alaska · 2047 days ago · 1 km deep · 63 km away
  24. 2.429 km NE of Susitna North, Alaska · 2047 days ago · 48 km deep · 95 km away
  25. 1.516 km NNE of Skwentna, Alaska · 2047 days ago · 71 km deep · 39 km away
  26. 2.52 km NNE of Petersville, Alaska · 2047 days ago · 75 km deep · 24 km away
  27. 2.846 km SSE of Denali National Park, Alaska · 2046 days ago · 11 km deep · 74 km away · felt by 1
  28. 1.930 km WNW of Skwentna, Alaska · 2046 days ago · 99 km deep · 51 km away
  29. 2.042 km ESE of Denali National Park, Alaska · 2046 days ago · 13 km deep · 98 km away
  30. 1.570 km NNE of Petersville, Alaska · 2046 days ago · 107 km deep · 81 km away
  31. 1.728 km W of Petersville, Alaska · 2045 days ago · 87 km deep · 9 km away
  32. 1.78 km NNW of Skwentna, Alaska · 2045 days ago · 79 km deep · 47 km away
  33. 1.730 km WNW of Susitna, Alaska · 2045 days ago · 73 km deep · 92 km away
  34. 1.668 km WNW of Petersville, Alaska · 2045 days ago · 4 km deep · 51 km away
  35. 1.925 km WNW of Susitna, Alaska · 2045 days ago · 63 km deep · 92 km away
  36. 2.028 km NW of Willow, Alaska · 2044 days ago · 47 km deep · 73 km away
  37. 1.529 km S of Denali National Park, Alaska · 2044 days ago · 5 km deep · 92 km away
  38. 1.722 km NNW of Chase, Alaska · 2044 days ago · 69 km deep · 51 km away
  39. 1.638 km WNW of Susitna, Alaska · 2044 days ago · 68 km deep · 94 km away
  40. 1.50 km SE of Skwentna, Alaska · 2043 days ago · 89 km deep · 55 km away
  41. 1.728 km NE of Skwentna, Alaska · 2043 days ago · 68 km deep · 32 km away
  42. 2.123 km ESE of Skwentna, Alaska · 2043 days ago · 63 km deep · 64 km away
  43. 1.932 km ENE of Chase, Alaska · 2043 days ago · 59 km deep · 86 km away
  44. 1.652 km NNW of Petersville, Alaska · 2043 days ago · 107 km deep · 49 km away
  45. 1.922 km SW of Petersville, Alaska · 2043 days ago · 76 km deep · 12 km away
  46. 1.525 km S of Denali National Park, Alaska · 2043 days ago · 7 km deep · 96 km away
  47. 2.054 km NNW of Petersville, Alaska · 2043 days ago · 113 km deep · 56 km away
  48. 2.468 km N of Petersville, AK · 2043 days ago · 114 km deep · 73 km away
  49. 2.058 km S of Denali National Park, Alaska · 2042 days ago · 9 km deep · 63 km away
  50. 2.163 km N of Petersville, Alaska · 2042 days ago · 110 km deep · 71 km away
  51. 2.050 km SSE of Denali National Park, Alaska · 2042 days ago · 7 km deep · 71 km away
  52. 2.860 km N of Petersville, Alaska · 2042 days ago · 110 km deep · 69 km away
  53. 1.964 km SE of Denali National Park, Alaska · 2042 days ago · 126 km deep · 87 km away
  54. 1.834 km ENE of Skwentna, Alaska · 2042 days ago · 66 km deep · 44 km away
  55. 1.555 km WNW of Skwentna, Alaska · 2042 days ago · 3 km deep · 66 km away
  56. 2.421 km WSW of Trapper Creek, Alaska · 2041 days ago · 59 km deep · 38 km away
  57. 1.570 km ESE of Denali National Park, Alaska · 2041 days ago · 118 km deep · 95 km away
  58. 1.563 km SE of Denali National Park, Alaska · 2041 days ago · 128 km deep · 85 km away
  59. 1.521 km NW of Susitna, Alaska · 2040 days ago · 59 km deep · 93 km away
  60. 1.641 km SSE of Denali National Park, Alaska · 2040 days ago · 5 km deep · 80 km away · felt by 1

The first 60 of at least 199.

Before

  1. 1.552 km NNE of Chase, Alaska · 2051 days ago · 85 km deep · 85 km away
  2. 1.554 km N of Petersville, Alaska · 2051 days ago · 100 km deep · 62 km away
  3. 1.722 km W of Petersville, Alaska · 2051 days ago · 86 km deep · 1 km away
  4. 1.651 km NNW of Skwentna, Alaska · 2051 days ago · 93 km deep · 32 km away
  5. 1.722 km NNW of Susitna, Alaska · 2052 days ago · 62 km deep · 87 km away
  6. 1.916 km N of Skwentna, Alaska · 2052 days ago · 85 km deep · 39 km away
  7. 1.657 km W of Skwentna, Alaska · 2052 days ago · 1 km deep · 82 km away
  8. 2.856 km W of Skwentna, Alaska · 2052 days ago · 4 km deep · 78 km away
  9. 1.768 km N of Petersville, Alaska · 2053 days ago · 105 km deep · 75 km away
  10. 1.636 km N of Skwentna, Alaska · 2053 days ago · 89 km deep · 20 km away
  11. 2.119 km WSW of Petersville, Alaska · 2053 days ago · 13 km deep · 8 km away
  12. 1.841 km NNE of Petersville, Alaska · 2053 days ago · 85 km deep · 53 km away
  13. 1.925 km SSW of Petersville, Alaska · 2053 days ago · 71 km deep · 27 km away
  14. 1.532 km WSW of Petersville, Alaska · 2053 days ago · 89 km deep · 16 km away
  15. 1.829 km SSE of Skwentna, Alaska · 2054 days ago · 77 km deep · 81 km away
  16. 1.669 km ESE of Denali National Park, Alaska · 2054 days ago · 123 km deep · 92 km away
  17. 1.530 km NW of Susitna, Alaska · 2054 days ago · 67 km deep · 84 km away
  18. 1.534 km WSW of Petersville, Alaska · 2054 days ago · 94 km deep · 14 km away
  19. 1.755 km NNW of Petersville, Alaska · 2054 days ago · 112 km deep · 51 km away
  20. 1.639 km SSE of Denali National Park, Alaska · 2054 days ago · 11 km deep · 85 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0212foxyo9. Read Sun, Oct 4, 2026, 9:44 PM UTC.