Alaska earthquakes

M1.8 earthquake 77 km WNW of Nikiski, Alaska

A magnitude 1.8 earthquake struck 77 km WNW of Nikiski, Alaska on Sun, Mar 21, 2021, 7:45 AM AKDT (15:45 UTC), 118 km (73 mi) below the surface.

A larger quake followed: M3.6 17 km NW of Clam Gulch, Alaska. This one was a foreshock.

Nikiski 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
1.8 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2021-03-21 15:45:29 UTC
Depth
118.0 km (73.3 mi), intermediate-depth
Epicenter
60.912° N, 152.630° 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
69

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 202 in the 60 days after this one and 169 in the 30 days before it.

After

  1. 1.543 km W of Happy Valley, Alaska · 2020 days ago · 80 km deep · 100 km away
  2. 1.846 km WNW of Ninilchik, Alaska · 2020 days ago · 91 km deep · 72 km away
  3. 2.361 km WNW of Happy Valley, Alaska · 2019 days ago · 104 km deep · 86 km away
  4. 1.632 km WNW of Nikiski, Alaska · 2019 days ago · 75 km deep · 45 km away
  5. 1.5Southern Alaska · 2019 days ago · 140 km deep · 75 km away
  6. 1.871 km WNW of Ninilchik, Alaska · 2019 days ago · 123 km deep · 73 km away · felt by 1
  7. 1.682 km NE of Port Alsworth, Alaska · 2018 days ago · 139 km deep · 40 km away
  8. 1.625 km WNW of Nikiski, Alaska · 2018 days ago · 79 km deep · 52 km away
  9. 1.760 km ENE of Pedro Bay, Alaska · 2018 days ago · 128 km deep · 99 km away
  10. 1.545 km WNW of Ninilchik, Alaska · 2018 days ago · 92 km deep · 78 km away
  11. 1.669 km E of Port Alsworth, Alaska · 2018 days ago · 117 km deep · 84 km away
  12. 1.613 km W of Clam Gulch, Alaska · 2018 days ago · 71 km deep · 91 km away
  13. 1.681 km ENE of Port Alsworth, Alaska · 2017 days ago · 137 km deep · 42 km away
  14. 1.527 km NNW of Ninilchik, Alaska · 2016 days ago · 71 km deep · 82 km away
  15. 1.719 km W of Tyonek, Alaska · 2016 days ago · 74 km deep · 63 km away
  16. 1.67 km NNE of Kalifornsky, Alaska · 2016 days ago · 74 km deep · 90 km away
  17. 1.647 km SW of Skwentna, Alaska · 2016 days ago · 101 km deep · 90 km away
  18. 1.970 km ENE of Pedro Bay, Alaska · 2016 days ago · 111 km deep · 93 km away
  19. 1.868 km WNW of Happy Valley, Alaska · 2016 days ago · 120 km deep · 94 km away
  20. 1.847 km W of Kalifornsky, Alaska · 2016 days ago · 103 km deep · 55 km away
  21. 2.06 km N of Ridgeway, Alaska · 2016 days ago · 63 km deep · 92 km away
  22. 1.715 km NW of Nikiski, Alaska · 2015 days ago · 69 km deep · 63 km away
  23. 1.670 km ENE of Pedro Bay, Alaska · 2015 days ago · 108 km deep · 94 km away
  24. 1.670 km WNW of Nikiski, Alaska · 2015 days ago · 118 km deep · 7 km away
  25. 2.217 km W of Tyonek, Alaska · 2015 days ago · 71 km deep · 66 km away
  26. 1.553 km WNW of Happy Valley, Alaska · 2015 days ago · 93 km deep · 87 km away
  27. 1.858 km WNW of Happy Valley, Alaska · 2014 days ago · 90 km deep · 91 km away
  28. 2.465 km WSW of Salamatof, Alaska · 2014 days ago · 99 km deep · 47 km away
  29. 1.714 km NNW of Point Possession, Alaska · 2014 days ago · 61 km deep · 98 km away
  30. 2.1Kenai Peninsula, Alaska · 2014 days ago · 75 km deep · 54 km away
  31. 1.657 km WNW of Ninilchik, Alaska · 2014 days ago · 103 km deep · 72 km away
  32. 1.7Southern Alaska · 2013 days ago · 96 km deep · 85 km away
  33. 2.067 km ENE of Pedro Bay, Alaska · 2013 days ago · 129 km deep · 94 km away
  34. 1.522 km W of Kalifornsky, Alaska · 2013 days ago · 77 km deep · 73 km away
  35. 1.944 km W of Tyonek, Alaska · 2013 days ago · 87 km deep · 38 km away
  36. 2.050 km E of Port Alsworth, Alaska · 2012 days ago · 148 km deep · 94 km away
  37. 1.661 km E of Port Alsworth, Alaska · 2012 days ago · 138 km deep · 83 km away
  38. 1.543 km W of Kalifornsky, Alaska · 2012 days ago · 89 km deep · 57 km away
  39. 1.923 km WNW of Tyonek, Alaska · 2012 days ago · 77 km deep · 62 km away
  40. 1.932 km WNW of Nikiski, Alaska · 2012 days ago · 83 km deep · 45 km away
  41. 1.914 km WNW of Point Possession, Alaska · 2012 days ago · 26 km deep · 91 km away
  42. 2.551 km E of Port Alsworth, Alaska · 2012 days ago · 150 km deep · 91 km away
  43. 1.731 km W of Nikiski, Alaska · 2012 days ago · 78 km deep · 47 km away
  44. 1.53 km WNW of Ridgeway, Alaska · 2011 days ago · 61 km deep · 90 km away
  45. 1.649 km NW of Ninilchik, Alaska · 2011 days ago · 89 km deep · 68 km away
  46. 1.854 km WNW of Ninilchik, Alaska · 2011 days ago · 100 km deep · 81 km away
  47. 1.629 km W of Salamatof, Alaska · 2010 days ago · 75 km deep · 55 km away
  48. 1.964 km W of Happy Valley, Alaska · 2010 days ago · 114 km deep · 95 km away
  49. 1.765 km E of Port Alsworth, Alaska · 2010 days ago · 131 km deep · 77 km away
  50. 2.660 km WNW of Ninilchik, Alaska · 2010 days ago · 106 km deep · 79 km away
  51. 1.980 km W of Salamatof, Alaska · 2010 days ago · 112 km deep · 43 km away
  52. 2.367 km W of Tyonek, Alaska · 2010 days ago · 111 km deep · 18 km away
  53. 1.858 km W of Happy Valley, Alaska · 2010 days ago · 90 km deep · 99 km away
  54. 1.639 km WNW of Tyonek, Alaska · 2010 days ago · 88 km deep · 52 km away
  55. 1.743 km WNW of Ninilchik, Alaska · 2009 days ago · 92 km deep · 78 km away
  56. 1.549 km NW of Beluga, Alaska · 2009 days ago · 83 km deep · 82 km away
  57. 2.236 km WNW of Ninilchik, Alaska · 2009 days ago · 74 km deep · 80 km away
  58. 2.073 km ENE of Port Alsworth, Alaska · 2009 days ago · 129 km deep · 67 km away
  59. 1.621 km W of Salamatof, Alaska · 2009 days ago · 90 km deep · 59 km away
  60. 1.952 km WNW of Ninilchik, Alaska · 2008 days ago · 102 km deep · 81 km away

The first 60 of at least 202.

Before

  1. 2.567 km ENE of Port Alsworth, Alaska · 2020 days ago · 137 km deep · 66 km away
  2. 1.651 km NW of Ninilchik, Alaska · 2020 days ago · 87 km deep · 66 km away
  3. 1.859 km E of Port Alsworth, Alaska · 2020 days ago · 138 km deep · 92 km away
  4. 2.386 km W of Salamatof, Alaska · 2020 days ago · 132 km deep · 26 km away
  5. 1.542 km SW of Skwentna, Alaska · 2020 days ago · 108 km deep · 97 km away
  6. 1.526 km W of Salamatof, Alaska · 2020 days ago · 79 km deep · 56 km away
  7. 2.513 km W of Point Possession, Alaska · 2021 days ago · 28 km deep · 91 km away
  8. 1.769 km W of Tyonek, Alaska · 2021 days ago · 115 km deep · 19 km away
  9. 1.920 km WNW of Nikiski, Alaska · 2021 days ago · 79 km deep · 56 km away
  10. 1.656 km W of Happy Valley, Alaska · 2021 days ago · 97 km deep · 100 km away
  11. 1.673 km WNW of Happy Valley, Alaska · 2021 days ago · 106 km deep · 84 km away
  12. 1.676 km NW of Ninilchik, Alaska · 2021 days ago · 114 km deep · 51 km away
  13. 1.545 km NW of Ninilchik, Alaska · 2021 days ago · 88 km deep · 68 km away
  14. 1.742 km W of Salamatof, Alaska · 2021 days ago · 81 km deep · 40 km away
  15. 1.759 km E of Port Alsworth, Alaska · 2021 days ago · 129 km deep · 88 km away
  16. 1.646 km NW of Ninilchik, Alaska · 2021 days ago · 91 km deep · 65 km away
  17. 1.934 km WNW of Clam Gulch, Alaska · 2022 days ago · 83 km deep · 71 km away
  18. 1.512 km ESE of Nikiski, Alaska · 2022 days ago · 26 km deep · 89 km away
  19. 2.068 km WSW of Salamatof, Alaska · 2022 days ago · 95 km deep · 46 km away
  20. 1.866 km SW of Skwentna, Alaska · 2022 days ago · 113 km deep · 71 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0213ok6z0b. Read Thu, Oct 1, 2026, 6:14 AM UTC.