Alaska earthquakes

M1.7 earthquake 73 km ESE of Ugashik, Alaska

A magnitude 1.7 earthquake struck 73 km ESE of Ugashik, Alaska on Sun, Aug 22, 2021, 12:21 AM AKDT (08:21 UTC), 80 km (50 mi) below the surface.

A larger quake followed: M6.9 112 km E of Chignik, 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
1.7 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2021-08-22 08:21:24 UTC
Depth
79.7 km (49.5 mi), intermediate-depth
Epicenter
57.161° N, 156.356° 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
33

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 173 in the 60 days after this one and 99 in the 30 days before it.

After

  1. 1.688 km ESE of Egegik, Alaska · 1866 days ago · 8 km deep · 81 km away
  2. 2.2111 km SE of Ugashik, Alaska · 1866 days ago · 67 km deep · 45 km away
  3. 1.776 km WNW of Karluk, Alaska · 1866 days ago · 96 km deep · 78 km away
  4. 1.792 km ESE of Ugashik, Alaska · 1865 days ago · 20 km deep · 19 km away
  5. 1.9Kodiak Island region, Alaska · 1865 days ago · 56 km deep · 89 km away
  6. 1.951 km SE of Ugashik, Alaska · 1865 days ago · 9 km deep · 29 km away
  7. 2.1119 km SSE of Ugashik, Alaska · 1864 days ago · 73 km deep · 68 km away
  8. 2.396 km ESE of Ugashik, Alaska · 1864 days ago · 9 km deep · 23 km away
  9. 1.986 km ESE of Ugashik, Alaska · 1864 days ago · 2 km deep · 12 km away
  10. 1.588 km ESE of Ugashik, Alaska · 1863 days ago · 1 km deep · 16 km away
  11. 1.6111 km W of Akhiok, Alaska · 1863 days ago · 12 km deep · 46 km away
  12. 2.893 km ESE of Ugashik, Alaska · 1863 days ago · 4 km deep · 20 km away
  13. 2.538 km SSW of Ugashik, Alaska · 1861 days ago · 8 km deep · 72 km away
  14. 2.137 km WSW of Karluk, Alaska · 1860 days ago · 72 km deep · 86 km away
  15. 1.892 km E of Chignik, Alaska · 1859 days ago · 31 km deep · 99 km away
  16. 1.873 km W of Karluk, Alaska · 1859 days ago · 80 km deep · 69 km away
  17. 1.957 km SW of Karluk, Alaska · 1857 days ago · 46 km deep · 70 km away
  18. 1.975 km SE of Ugashik, Alaska · 1857 days ago · 3 km deep · 6 km away
  19. 1.880 km W of Karluk, Alaska · 1856 days ago · 6 km deep · 61 km away
  20. 1.798 km ESE of Ugashik, Alaska · 1856 days ago · 67 km deep · 26 km away
  21. 1.990 km ENE of Chignik, Alaska · 1856 days ago · 43 km deep · 81 km away
  22. 1.5Alaska Peninsula · 1855 days ago · 5 km deep · 57 km away
  23. 1.574 km WSW of Karluk, Alaska · 1855 days ago · 71 km deep · 50 km away
  24. 1.8124 km SE of Ugashik, Alaska · 1855 days ago · 68 km deep · 62 km away
  25. 1.757 km ESE of Egegik, Alaska · 1855 days ago · 157 km deep · 93 km away
  26. 2.080 km SE of Ugashik, Alaska · 1853 days ago · 2 km deep · 20 km away
  27. 1.585 km SE of Ugashik, Alaska · 1853 days ago · 14 km deep · 22 km away
  28. 1.776 km W of Karluk, Alaska · 1853 days ago · 35 km deep · 58 km away
  29. 1.690 km WSW of Akhiok, Alaska · 1853 days ago · 7 km deep · 62 km away
  30. 3.5105 km WSW of Akhiok, Alaska · 1853 days ago · 70 km deep · 85 km away
  31. 1.661 km WNW of Karluk, Alaska · 1852 days ago · 10 km deep · 92 km away
  32. 1.771 km WSW of Karluk, Alaska · 1852 days ago · 61 km deep · 52 km away
  33. 1.575 km WNW of Karluk, Alaska · 1851 days ago · 95 km deep · 81 km away
  34. 1.953 km SW of Karluk, Alaska · 1851 days ago · 61 km deep · 83 km away
  35. 2.4102 km W of Akhiok, Alaska · 1850 days ago · 12 km deep · 45 km away
  36. 2.4101 km W of Akhiok, Alaska · 1850 days ago · 14 km deep · 46 km away
  37. 1.664 km ENE of Chignik, Alaska · 1850 days ago · 65 km deep · 95 km away
  38. 3.269 km ESE of Egegik, Alaska · 1849 days ago · 137 km deep · 90 km away
  39. 2.0Alaska Peninsula · 1849 days ago · 7 km deep · 61 km away
  40. 3.296 km ENE of Chignik, Alaska · 1847 days ago · 6 km deep · 70 km away
  41. 2.0Alaska Peninsula · 1847 days ago · 130 km deep · 72 km away
  42. 1.7105 km W of Akhiok, Alaska · 1845 days ago · 29 km deep · 39 km away
  43. 1.646 km SE of Ugashik, Alaska · 1843 days ago · 1 km deep · 27 km away
  44. 1.671 km SE of Ugashik, Alaska · 1843 days ago · 1 km deep · 8 km away
  45. 1.754 km ESE of Ugashik, Alaska · 1843 days ago · 2 km deep · 22 km away
  46. 1.860 km ESE of Ugashik, Alaska · 1842 days ago · 3 km deep · 14 km away
  47. 2.074 km NE of Chignik, Alaska · 1841 days ago · 2 km deep · 83 km away
  48. 1.995 km ESE of Ugashik, Alaska · 1841 days ago · 17 km deep · 21 km away
  49. 1.676 km ESE of Ugashik, Alaska · 1841 days ago · 29 km deep · 17 km away
  50. 2.774 km WNW of Karluk, Alaska · 1841 days ago · 10 km deep · 74 km away
  51. 3.299 km ENE of Chignik, Alaska · 1840 days ago · 7 km deep · 69 km away
  52. 2.586 km ENE of Chignik, Alaska · 1840 days ago · 12 km deep · 82 km away
  53. 2.892 km SSE of Ugashik, Alaska · 1840 days ago · 41 km deep · 67 km away
  54. 2.154 km W of Akhiok, Alaska · 1840 days ago · 7 km deep · 84 km away
  55. 2.7118 km WSW of Akhiok, Alaska · 1839 days ago · 8 km deep · 67 km away
  56. 2.394 km SW of Karluk, Alaska · 1838 days ago · 75 km deep · 40 km away
  57. 1.856 km SE of Ugashik, Alaska · 1836 days ago · 89 km deep · 19 km away
  58. 1.8109 km SSE of Ugashik, Alaska · 1836 days ago · 59 km deep · 65 km away
  59. 2.086 km ENE of Ugashik, Alaska · 1835 days ago · 6 km deep · 63 km away
  60. 1.646 km WSW of Karluk, Alaska · 1832 days ago · 35 km deep · 78 km away

The first 60 of 173.

Before

  1. 1.677 km SE of Ugashik, Alaska · 1867 days ago · 78 km deep · 22 km away
  2. 2.228 km NE of Pilot Point, Alaska · 1867 days ago · 6 km deep · 89 km away
  3. 2.528 km NNE of Pilot Point, Alaska · 1867 days ago · 14 km deep · 92 km away
  4. 1.680 km ENE of Chignik, Alaska · 1868 days ago · 10 km deep · 84 km away
  5. 1.9Alaska Peninsula · 1868 days ago · 87 km deep · 70 km away
  6. 2.089 km WNW of Karluk, Alaska · 1868 days ago · 100 km deep · 76 km away
  7. 2.381 km W of Karluk, Alaska · 1868 days ago · 6 km deep · 63 km away
  8. 1.673 km WNW of Karluk, Alaska · 1868 days ago · 99 km deep · 74 km away
  9. 2.270 km ESE of Egegik, Alaska · 1868 days ago · 146 km deep · 90 km away
  10. 1.962 km WNW of Akhiok, Alaska · 1869 days ago · 57 km deep · 73 km away
  11. 2.5Alaska Peninsula · 1869 days ago · 72 km deep · 53 km away
  12. 1.558 km WNW of Akhiok, Alaska · 1869 days ago · 56 km deep · 78 km away
  13. 2.297 km W of Akhiok, Alaska · 1870 days ago · 79 km deep · 40 km away
  14. 1.657 km W of Akhiok, Alaska · 1870 days ago · 53 km deep · 83 km away
  15. 1.970 km NE of Chignik, Alaska · 1870 days ago · 11 km deep · 88 km away
  16. 1.663 km WSW of Akhiok, Alaska · 1870 days ago · 6 km deep · 96 km away
  17. 2.174 km ENE of Chignik, Alaska · 1870 days ago · 4 km deep · 85 km away
  18. 2.480 km ENE of Chignik, Alaska · 1870 days ago · 9 km deep · 79 km away
  19. 1.8118 km ENE of Chignik, Alaska · 1870 days ago · 79 km deep · 69 km away
  20. 1.772 km ENE of Chignik, Alaska · 1870 days ago · 1 km deep · 87 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021ar4n9av. Read Fri, Oct 2, 2026, 1:51 AM UTC.