Alaska earthquakes

M1.8 earthquake 34 km SW of Trapper Creek, Alaska

A magnitude 1.8 earthquake struck 34 km SW of Trapper Creek, Alaska on Sun, Sep 20, 2020, 5:09 PM AKDT (01:09 UTC), 64 km (40 mi) below the surface.

A larger quake followed: M5.1 2 km E of Big Lake, 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
2020-09-21 01:09:44 UTC
Depth
64.3 km (40.0 mi), shallow
Epicenter
62.109° N, 150.733° 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
76

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 157 in the 30 days before it.

After

  1. 1.59 km NW of Big Lake, Alaska · 2201 days ago · 39 km deep · 68 km away
  2. 1.732 km NW of Willow, Alaska · 2201 days ago · 54 km deep · 22 km away
  3. 1.656 km NNW of Petersville, Alaska · 2201 days ago · 114 km deep · 99 km away
  4. 1.633 km NNW of Susitna, Alaska · 2200 days ago · 66 km deep · 33 km away
  5. 1.823 km SW of Petersville, Alaska · 2200 days ago · 75 km deep · 32 km away
  6. 1.526 km NNE of Petersville, Alaska · 2200 days ago · 79 km deep · 68 km away
  7. 1.743 km WNW of Skwentna, Alaska · 2200 days ago · 103 km deep · 74 km away
  8. 1.925 km WSW of Susitna North, Alaska · 2200 days ago · 54 km deep · 25 km away
  9. 1.847 km NNW of Beluga, Alaska · 2200 days ago · 75 km deep · 79 km away
  10. 1.955 km NNE of Petersville, Alaska · 2200 days ago · 103 km deep · 97 km away
  11. 1.73 km SE of Big Lake, Alaska · 2200 days ago · 42 km deep · 80 km away
  12. 2.016 km N of Fishhook, Alaska · 2200 days ago · 2 km deep · 80 km away
  13. 1.78 km S of Big Lake, Alaska · 2199 days ago · 17 km deep · 85 km away
  14. 1.611 km NNE of Fishhook, Alaska · 2199 days ago · 27 km deep · 87 km away
  15. 1.541 km S of Skwentna, Alaska · 2199 days ago · 76 km deep · 64 km away
  16. 1.532 km N of Skwentna, Alaska · 2198 days ago · 93 km deep · 42 km away
  17. 2.537 km NNE of Chase, Alaska · 2198 days ago · 69 km deep · 85 km away
  18. 2.434 km SW of Trapper Creek, Alaska · 2198 days ago · 0 km deep · 5 km away
  19. 1.854 km NW of Beluga, Alaska · 2197 days ago · 88 km deep · 83 km away
  20. 1.96 km W of Fishhook, Alaska · 2197 days ago · 28 km deep · 83 km away
  21. 2.826 km WSW of Skwentna, Alaska · 2196 days ago · 111 km deep · 64 km away
  22. 2.38 km N of Point MacKenzie, Alaska · 2195 days ago · 42 km deep · 84 km away
  23. 2.44 km SSE of Big Lake, Alaska · 2195 days ago · 38 km deep · 82 km away
  24. 2.335 km N of Sutton-Alpine, Alaska · 2195 days ago · 32 km deep · 99 km away · felt by 1
  25. 1.940 km NNW of Petersville, Alaska · 2195 days ago · 100 km deep · 83 km away
  26. 3.012 km N of Meadow Lakes, Alaska · 2195 days ago · 40 km deep · 71 km away · felt by 2
  27. 1.552 km WNW of Petersville, Alaska · 2195 days ago · 94 km deep · 77 km away
  28. 3.014 km W of Trapper Creek, Alaska · 2195 days ago · 62 km deep · 27 km away · felt by 2
  29. 1.936 km WSW of Petersville, Alaska · 2194 days ago · 86 km deep · 49 km away
  30. 1.558 km WNW of Skwentna, Alaska · 2194 days ago · 6 km deep · 89 km away
  31. 2.427 km SW of Susitna North, Alaska · 2194 days ago · 44 km deep · 26 km away · felt by 2
  32. 1.531 km NNW of Susitna, Alaska · 2194 days ago · 66 km deep · 33 km away
  33. 1.52 km NW of Point MacKenzie, Alaska · 2194 days ago · 35 km deep · 90 km away
  34. 2.2Central Alaska · 2194 days ago · 34 km deep · 47 km away
  35. 1.624 km NNE of Willow, Alaska · 2194 days ago · 37 km deep · 52 km away
  36. 1.532 km NW of Susitna, Alaska · 2194 days ago · 76 km deep · 45 km away
  37. 1.522 km ESE of Susitna North, Alaska · 2193 days ago · 39 km deep · 65 km away
  38. 1.651 km NW of Beluga, Alaska · 2193 days ago · 90 km deep · 81 km away
  39. 1.85 km E of Big Lake, Alaska · 2193 days ago · 39 km deep · 80 km away
  40. 1.742 km SSW of Skwentna, Alaska · 2192 days ago · 83 km deep · 73 km away
  41. 1.653 km NNW of Petersville, Alaska · 2192 days ago · 105 km deep · 94 km away
  42. 1.625 km ENE of Skwentna, Alaska · 2192 days ago · 72 km deep · 12 km away
  43. 1.941 km SW of Skwentna, Alaska · 2192 days ago · 93 km deep · 76 km away
  44. 2.82 km SSW of Big Lake, Alaska · 2191 days ago · 39 km deep · 79 km away
  45. 1.661 km NW of Beluga, Alaska · 2191 days ago · 5 km deep · 94 km away
  46. 2.04 km SE of Big Lake, Alaska · 2191 days ago · 39 km deep · 81 km away
  47. 1.58 km SSW of Big Lake, Alaska · 2191 days ago · 43 km deep · 83 km away
  48. 1.65 km NNE of Point MacKenzie, Alaska · 2191 days ago · 38 km deep · 89 km away
  49. 1.838 km E of Chase, Alaska · 2190 days ago · 58 km deep · 83 km away
  50. 1.610 km W of Houston, Alaska · 2190 days ago · 46 km deep · 65 km away
  51. 1.910 km W of Big Lake, Alaska · 2190 days ago · 47 km deep · 72 km away
  52. 1.617 km W of Willow, Alaska · 2190 days ago · 52 km deep · 44 km away
  53. 2.425 km W of Petersville, Alaska · 2189 days ago · 88 km deep · 49 km away
  54. 1.716 km WSW of Trapper Creek, Alaska · 2189 days ago · 15 km deep · 19 km away
  55. 1.95 km SSW of Houston, Alaska · 2189 days ago · 39 km deep · 74 km away
  56. 1.645 km NNW of Petersville, Alaska · 2189 days ago · 104 km deep · 88 km away
  57. 1.527 km SW of Petersville, Alaska · 2189 days ago · 72 km deep · 30 km away
  58. 1.856 km NNW of Petersville, Alaska · 2188 days ago · 107 km deep · 97 km away
  59. 2.23 km SSW of Big Lake, Alaska · 2188 days ago · 40 km deep · 79 km away
  60. 2.048 km W of Skwentna, Alaska · 2188 days ago · 137 km deep · 82 km away

The first 60 of at least 201.

Before

  1. 2.114 km N of Fishhook, Alaska · 2202 days ago · 8 km deep · 80 km away
  2. 1.927 km NW of Susitna, Alaska · 2202 days ago · 65 km deep · 45 km away
  3. 1.77 km ENE of Big Lake, Alaska · 2202 days ago · 39 km deep · 80 km away
  4. 2.57 km E of Big Lake, Alaska · 2202 days ago · 38 km deep · 81 km away
  5. 1.88 km N of Point MacKenzie, Alaska · 2202 days ago · 38 km deep · 84 km away
  6. 1.548 km N of Chase, Alaska · 2202 days ago · 80 km deep · 92 km away
  7. 1.631 km WNW of Petersville, Alaska · 2202 days ago · 91 km deep · 64 km away
  8. 1.549 km NW of Beluga, Alaska · 2203 days ago · 88 km deep · 98 km away
  9. 1.521 km NNW of Susitna, Alaska · 2203 days ago · 60 km deep · 44 km away
  10. 1.78 km NW of Point MacKenzie, Alaska · 2203 days ago · 12 km deep · 84 km away
  11. 1.77 km SSE of Houston, Alaska · 2204 days ago · 26 km deep · 79 km away
  12. 2.25 km SW of Meadow Lakes, Alaska · 2204 days ago · 29 km deep · 79 km away · felt by 1
  13. 2.57 km W of Fishhook, Alaska · 2204 days ago · 28 km deep · 81 km away · felt by 1
  14. 1.55 km SW of Chase, Alaska · 2204 days ago · 66 km deep · 45 km away
  15. 3.14 km W of Point MacKenzie, Alaska · 2204 days ago · 40 km deep · 90 km away · felt by 22
  16. 2.325 km SSW of Trapper Creek, Alaska · 2204 days ago · 9 km deep · 17 km away
  17. 2.07 km NNW of Point MacKenzie, Alaska · 2204 days ago · 32 km deep · 84 km away
  18. 2.528 km SSW of Susitna, Alaska · 2204 days ago · 52 km deep · 90 km away · felt by 1
  19. 1.57 km WSW of Petersville, Alaska · 2204 days ago · 65 km deep · 41 km away
  20. 1.648 km NW of Beluga, AK · 2205 days ago · 82 km deep · 81 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak020c6a2fca. Read Thu, Oct 1, 2026, 3:13 PM UTC.