Alaska earthquakes

M1.8 earthquake 19 km ENE of Sterling, Alaska

A magnitude 1.8 earthquake struck 19 km ENE of Sterling, Alaska on Thu, Sep 16, 2021, 4:37 PM AKDT (00:37 UTC), 19 km (12 mi) below the surface.

A larger quake followed: M4.7 12 km SSW of Clam Gulch, Alaska. This one was a foreshock.

Sterling 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
1.8 (ml), micro
Local time
UTC
2021-09-17 00:37:23 UTC
Depth
18.7 km (11.6 mi), shallow
Epicenter
60.578° N, 150.427° 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 III, 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
39

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 90 in the 30 days before it.

After

  1. 1.529 km SSW of Cooper Landing, Alaska · 1834 days ago · 37 km deep · 42 km away
  2. 1.82 km WNW of Point MacKenzie, Alaska · 1834 days ago · 41 km deep · 91 km away
  3. 1.525 km WSW of Cooper Landing, Alaska · 1833 days ago · 42 km deep · 18 km away
  4. 1.627 km S of Funny River, Alaska · 1833 days ago · 48 km deep · 40 km away
  5. 2.22 km ESE of Point MacKenzie, Alaska · 1833 days ago · 40 km deep · 90 km away
  6. 1.513 km SSE of Funny River, Alaska · 1833 days ago · 45 km deep · 27 km away
  7. 1.512 km NNE of Ninilchik, Alaska · 1833 days ago · 56 km deep · 79 km away
  8. 1.930 km WSW of Point MacKenzie, Alaska · 1832 days ago · 36 km deep · 71 km away
  9. 1.619 km NNW of Sterling, Alaska · 1832 days ago · 52 km deep · 27 km away
  10. 1.77 km NW of Kalifornsky, Alaska · 1831 days ago · 55 km deep · 53 km away
  11. 1.527 km NW of Beluga, Alaska · 1831 days ago · 65 km deep · 99 km away
  12. 1.542 km NE of Fox River, Alaska · 1831 days ago · 10 km deep · 54 km away
  13. 1.642 km W of Salamatof, Alaska · 1830 days ago · 79 km deep · 91 km away
  14. 1.80 km ENE of Beluga, Alaska · 1830 days ago · 59 km deep · 72 km away
  15. 2.66 km NW of Point MacKenzie, Alaska · 1829 days ago · 14 km deep · 94 km away
  16. 1.57 km ESE of Sunrise, Alaska · 1829 days ago · 19 km deep · 70 km away
  17. 2.00 km SSE of Elmendorf Air Force Base, Alaska · 1829 days ago · 28 km deep · 86 km away
  18. 1.70 km NNE of Elmendorf Air Force Base, Alaska · 1829 days ago · 29 km deep · 87 km away
  19. 1.516 km SW of Susitna, Alaska · 1829 days ago · 48 km deep · 98 km away
  20. 2.247 km NW of Ninilchik, Alaska · 1829 days ago · 80 km deep · 99 km away
  21. 2.314 km WNW of Nikiski, Alaska · 1829 days ago · 71 km deep · 63 km away
  22. 2.27 km SSE of Elmendorf Air Force Base, Alaska · 1828 days ago · 31 km deep · 83 km away · felt by 1
  23. 1.526 km NW of Beluga, Alaska · 1828 days ago · 71 km deep · 97 km away
  24. 2.27 km SSW of Point MacKenzie, Alaska · 1827 days ago · 27 km deep · 83 km away · felt by 1
  25. 1.89 km SW of Point MacKenzie, Alaska · 1827 days ago · 48 km deep · 81 km away
  26. 2.225 km WNW of Nikiski, Alaska · 1826 days ago · 76 km deep · 74 km away
  27. 1.812 km SW of Point MacKenzie, Alaska · 1826 days ago · 3 km deep · 79 km away
  28. 3.21 km NNE of Point MacKenzie, Alaska · 1826 days ago · 43 km deep · 92 km away · felt by 18
  29. 2.044 km NW of Ninilchik, Alaska · 1826 days ago · 84 km deep · 97 km away
  30. 1.68 km ENE of Ninilchik, Alaska · 1826 days ago · 56 km deep · 83 km away
  31. 2.42 km WSW of Point MacKenzie, Alaska · 1826 days ago · 37 km deep · 88 km away · felt by 1
  32. 1.831 km WNW of Clam Gulch, Alaska · 1826 days ago · 87 km deep · 86 km away
  33. 2.116 km WNW of Fox River, Alaska · 1825 days ago · 36 km deep · 86 km away
  34. 1.514 km W of Point Possession, Alaska · 1824 days ago · 20 km deep · 49 km away
  35. 2.26 km E of Nikiski, Alaska · 1823 days ago · 59 km deep · 42 km away
  36. 1.529 km N of Beluga, Alaska · 1823 days ago · 15 km deep · 100 km away
  37. 1.522 km N of Beluga, Alaska · 1823 days ago · 59 km deep · 91 km away
  38. 1.544 km W of Kalifornsky, Alaska · 1821 days ago · 86 km deep · 92 km away
  39. 2.06 km E of Hope, Alaska · 1821 days ago · 30 km deep · 63 km away
  40. 1.77 km NE of Girdwood, Alaska · 1820 days ago · 24 km deep · 87 km away
  41. 1.529 km SE of Funny River, Alaska · 1820 days ago · 31 km deep · 31 km away
  42. 1.721 km WNW of Clam Gulch, Alaska · 1819 days ago · 67 km deep · 77 km away
  43. 1.520 km NW of Moose Pass, Alaska · 1819 days ago · 19 km deep · 46 km away
  44. 1.623 km NNW of Beluga, Alaska · 1819 days ago · 75 km deep · 94 km away
  45. 1.825 km WSW of Point MacKenzie, Alaska · 1819 days ago · 45 km deep · 81 km away
  46. 1.619 km ENE of Nikiski, Alaska · 1819 days ago · 25 km deep · 37 km away
  47. 1.545 km WSW of Tyonek, Alaska · 1818 days ago · 78 km deep · 93 km away
  48. 1.611 km NW of Beluga, Alaska · 1818 days ago · 68 km deep · 83 km away
  49. 1.710 km WNW of Tyonek, Alaska · 1818 days ago · 85 km deep · 76 km away
  50. 1.512 km NNW of Beluga, Alaska · 1818 days ago · 64 km deep · 85 km away
  51. 1.813 km W of Cooper Landing, Alaska · 1818 days ago · 37 km deep · 22 km away
  52. 2.144 km WNW of Clam Gulch, Alaska · 1817 days ago · 77 km deep · 94 km away
  53. 1.56 km SW of Kasilof, Alaska · 1816 days ago · 56 km deep · 60 km away
  54. 2.79 km SSW of Elmendorf Air Force Base, Alaska · 1816 days ago · 39 km deep · 78 km away · felt by 30
  55. 1.516 km W of Salamatof, Alaska · 1816 days ago · 72 km deep · 65 km away
  56. 1.69 km SSW of Elmendorf Air Force Base, Alaska · 1816 days ago · 35 km deep · 78 km away
  57. 1.617 km SW of Whittier, Alaska · 1815 days ago · 14 km deep · 85 km away
  58. 1.517 km WNW of Cooper Landing, Alaska · 1814 days ago · 39 km deep · 17 km away
  59. 1.6Kenai Peninsula, Alaska · 1814 days ago · 77 km deep · 79 km away
  60. 1.734 km WNW of Clam Gulch, Alaska · 1813 days ago · 72 km deep · 88 km away

The first 60 of at least 199.

Before

  1. 1.517 km SE of Susitna, Alaska · 1834 days ago · 27 km deep · 97 km away
  2. 1.520 km E of Kasilof, Alaska · 1834 days ago · 44 km deep · 40 km away
  3. 1.716 km WSW of Tyonek, Alaska · 1835 days ago · 61 km deep · 72 km away
  4. 1.910 km S of Tyonek, Alaska · 1837 days ago · 52 km deep · 60 km away
  5. 1.719 km SW of Tyonek, Alaska · 1837 days ago · 117 km deep · 64 km away
  6. 2.24 km NE of Ninilchik, Alaska · 1839 days ago · 54 km deep · 86 km away
  7. 1.538 km WSW of Salamatof, Alaska · 1839 days ago · 86 km deep · 85 km away
  8. 1.94 km SW of Kasilof, Alaska · 1839 days ago · 58 km deep · 58 km away · felt by 1
  9. 3.95 km SSW of Kasilof, Alaska · 1839 days ago · 60 km deep · 58 km away · felt by 39 · tsunami flag
  10. 1.534 km NW of Nikiski, Alaska · 1840 days ago · 78 km deep · 81 km away
  11. 2.615 km WSW of Cooper Landing, Alaska · 1840 days ago · 40 km deep · 26 km away · felt by 2
  12. 1.517 km ESE of Clam Gulch, Alaska · 1840 days ago · 62 km deep · 57 km away
  13. 2.52 km ESE of Tyonek, Alaska · 1840 days ago · 57 km deep · 64 km away
  14. 2.010 km SSE of Kasilof, Alaska · 1840 days ago · 57 km deep · 56 km away
  15. 1.99 km SSW of Hope, Alaska · 1840 days ago · 42 km deep · 48 km away · felt by 1
  16. 1.55 km E of Point MacKenzie, Alaska · 1840 days ago · 37 km deep · 92 km away
  17. 3.324 km WNW of Clam Gulch, Alaska · 1840 days ago · 66 km deep · 78 km away
  18. 1.95 km E of Ninilchik, Alaska · 1841 days ago · 51 km deep · 86 km away
  19. 1.727 km NW of Beluga, Alaska · 1841 days ago · 64 km deep · 99 km away
  20. 2.328 km WSW of Point MacKenzie, Alaska · 1842 days ago · 41 km deep · 72 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021bxzy7mk (also filed as us7000fbzb). Read Thu, Sep 24, 2026, 4:26 PM UTC.