Alaska earthquakes

M3.3 earthquake 7 km NNE of Cantwell, Alaska

A magnitude 3.3 earthquake struck 7 km NNE of Cantwell, Alaska on Sat, Mar 20, 2021, 7:15 AM AKDT (15:15 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M5.5 28 km SE of Cantwell, Alaska. This one was a foreshock.

Healy 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
3.3 (ml), minor
Local time
UTC
2021-03-20 15:15:15 UTC
Depth
6.8 km (4.2 mi), shallow
Epicenter
63.457° N, 148.899° 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
202

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 167 in the 60 days after this one and 74 in the 30 days before it.

After

  1. 2.040 km WSW of Healy, Alaska · 2019 days ago · 39 km deep · 52 km away
  2. 2.452 km NNE of Petersville, Alaska · 2018 days ago · 104 km deep · 96 km away
  3. 1.521 km WNW of Cantwell, Alaska · 2018 days ago · 91 km deep · 21 km away
  4. 1.556 km NNE of Chase, Alaska · 2018 days ago · 74 km deep · 71 km away
  5. 1.947 km WSW of Cantwell, Alaska · 2016 days ago · 91 km deep · 54 km away
  6. 1.914 km NE of Healy, Alaska · 2016 days ago · 114 km deep · 57 km away
  7. 2.053 km SW of Cantwell, Alaska · 2015 days ago · 93 km deep · 60 km away
  8. 1.569 km SE of Denali National Park, Alaska · 2015 days ago · 113 km deep · 89 km away
  9. 2.466 km N of Petersville, Alaska · 2014 days ago · 110 km deep · 97 km away
  10. 2.043 km SSW of Cantwell, Alaska · 2014 days ago · 0 km deep · 51 km away
  11. 1.672 km WSW of Delta Junction, Alaska · 2013 days ago · 1 km deep · 98 km away
  12. 1.722 km WSW of McKinley Park, Alaska · 2013 days ago · 115 km deep · 31 km away
  13. 2.158 km SE of Denali National Park, Alaska · 2013 days ago · 131 km deep · 95 km away
  14. 2.341 km E of Denali National Park, Alaska · 2013 days ago · 7 km deep · 99 km away
  15. 1.822 km W of McKinley Park, Alaska · 2013 days ago · 108 km deep · 39 km away
  16. 2.326 km SSW of Cantwell, Alaska · 2012 days ago · 85 km deep · 34 km away
  17. 2.955 km NNE of Chase, Alaska · 2012 days ago · 75 km deep · 74 km away
  18. 2.727 km SW of Cantwell, Alaska · 2011 days ago · 83 km deep · 35 km away
  19. 1.561 km N of Chase, Alaska · 2011 days ago · 83 km deep · 74 km away
  20. 1.562 km W of Cantwell, Alaska · 2011 days ago · 115 km deep · 64 km away
  21. 1.664 km WSW of Ferry, Alaska · 2010 days ago · 10 km deep · 74 km away
  22. 1.810 km SW of Cantwell, Alaska · 2010 days ago · 85 km deep · 18 km away
  23. 3.242 km NNE of Chase, Alaska · 2010 days ago · 71 km deep · 85 km away · felt by 1
  24. 2.244 km S of Cantwell, Alaska · 2009 days ago · 7 km deep · 52 km away
  25. 1.789 km ESE of McKinley Park, Alaska · 2009 days ago · 72 km deep · 86 km away
  26. 2.070 km N of Petersville, Alaska · 2008 days ago · 113 km deep · 96 km away
  27. 1.758 km NE of Chase, Alaska · 2008 days ago · 62 km deep · 70 km away
  28. 1.757 km NE of Chase, Alaska · 2008 days ago · 52 km deep · 73 km away
  29. 2.164 km SE of Denali National Park, Alaska · 2008 days ago · 114 km deep · 99 km away
  30. 1.963 km WSW of Cantwell, Alaska · 2008 days ago · 90 km deep · 69 km away
  31. 1.526 km SW of Cantwell, Alaska · 2008 days ago · 77 km deep · 34 km away
  32. 2.360 km S of Cantwell, Alaska · 2008 days ago · 62 km deep · 68 km away
  33. 2.772 km ESE of Denali National Park, Alaska · 2008 days ago · 118 km deep · 84 km away
  34. 1.565 km S of Cantwell, Alaska · 2008 days ago · 70 km deep · 73 km away
  35. 1.651 km SW of Cantwell, Alaska · 2008 days ago · 91 km deep · 58 km away
  36. 1.622 km WNW of Cantwell, Alaska · 2008 days ago · 88 km deep · 24 km away
  37. 1.660 km SE of Denali National Park, Alaska · 2007 days ago · 131 km deep · 100 km away
  38. 1.558 km NNE of Petersville, Alaska · 2007 days ago · 94 km deep · 95 km away
  39. 1.679 km E of Cantwell, Alaska · 2007 days ago · 73 km deep · 76 km away
  40. 1.843 km SW of Cantwell, Alaska · 2007 days ago · 91 km deep · 51 km away
  41. 3.261 km E of Cantwell, Alaska · 2007 days ago · 79 km deep · 59 km away
  42. 1.560 km SSE of Cantwell, Alaska · 2007 days ago · 9 km deep · 65 km away
  43. 2.070 km ESE of Cantwell, Alaska · 2006 days ago · 9 km deep · 71 km away
  44. 1.570 km SE of Cantwell, Alaska · 2006 days ago · 62 km deep · 75 km away
  45. 1.559 km SE of Denali National Park, Alaska · 2006 days ago · 130 km deep · 97 km away
  46. 1.552 km WSW of McKinley Park, Alaska · 2005 days ago · 133 km deep · 55 km away
  47. 2.847 km E of Denali National Park, Alaska · 2005 days ago · 12 km deep · 94 km away · felt by 1
  48. 2.070 km ESE of Denali National Park, Alaska · 2004 days ago · 129 km deep · 80 km away
  49. 1.563 km NE of Chase, Alaska · 2004 days ago · 64 km deep · 76 km away
  50. 1.572 km ESE of Denali National Park, Alaska · 2002 days ago · 122 km deep · 85 km away
  51. 1.568 km SE of Denali National Park, Alaska · 2002 days ago · 117 km deep · 92 km away
  52. 1.5Central Alaska · 2001 days ago · 12 km deep · 30 km away
  53. 2.866 km ESE of Denali National Park, Alaska · 2001 days ago · 129 km deep · 81 km away
  54. 1.763 km ESE of McKinley Park, Alaska · 2001 days ago · 7 km deep · 62 km away
  55. 1.567 km SE of Denali National Park, Alaska · 2000 days ago · 135 km deep · 98 km away
  56. 1.529 km SSW of Cantwell, Alaska · 2000 days ago · 77 km deep · 37 km away
  57. 1.653 km NNE of Chase, Alaska · 2000 days ago · 74 km deep · 75 km away
  58. 5.528 km SE of Cantwell, Alaska · 2000 days ago · 80 km deep · 33 km away · felt by 1,975 · tsunami flag
  59. 1.666 km NNE of Petersville, Alaska · 1999 days ago · 104 km deep · 88 km away
  60. 1.670 km ESE of Denali National Park, Alaska · 1999 days ago · 115 km deep · 81 km away

The first 60 of 167.

Before

  1. 1.665 km ENE of Chase, Alaska · 2020 days ago · 59 km deep · 84 km away
  2. 2.448 km WSW of Clear, Alaska, Alaska · 2020 days ago · 9 km deep · 93 km away
  3. 1.658 km SSE of Cantwell, Alaska · 2020 days ago · 14 km deep · 64 km away
  4. 2.047 km N of Chase, Alaska · 2020 days ago · 13 km deep · 94 km away
  5. 3.154 km NNE of Chase, Alaska · 2021 days ago · 71 km deep · 73 km away
  6. 2.037 km S of Cantwell, Alaska · 2021 days ago · 65 km deep · 45 km away
  7. 1.675 km ENE of Chase, Alaska · 2022 days ago · 52 km deep · 85 km away
  8. 2.262 km S of Cantwell, Alaska · 2022 days ago · 63 km deep · 69 km away
  9. 1.7Central Alaska · 2022 days ago · 96 km deep · 50 km away
  10. 1.971 km SE of Denali National Park, Alaska · 2022 days ago · 117 km deep · 90 km away
  11. 1.558 km SSE of Cantwell, Alaska · 2022 days ago · 16 km deep · 63 km away
  12. 1.523 km W of McKinley Park, Alaska · 2023 days ago · 104 km deep · 37 km away
  13. 1.582 km ESE of McKinley Park, Alaska · 2024 days ago · 3 km deep · 81 km away
  14. 1.532 km WSW of Cantwell, Alaska · 2024 days ago · 102 km deep · 37 km away
  15. 1.556 km N of Petersville, Alaska · 2024 days ago · 101 km deep · 98 km away
  16. 2.060 km NNE of Chase, Alaska · 2025 days ago · 79 km deep · 70 km away
  17. 1.553 km SW of Cantwell, Alaska · 2025 days ago · 94 km deep · 59 km away
  18. 2.523 km WSW of McKinley Park, Alaska · 2026 days ago · 4 km deep · 35 km away
  19. 1.856 km W of Cantwell, Alaska · 2027 days ago · 100 km deep · 59 km away
  20. 1.862 km N of Chase, Alaska · 2027 days ago · 88 km deep · 80 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0213mwh613 (also filed as us7000dl8k). Read Tue, Sep 29, 2026, 7:43 AM UTC.