Alaska earthquakes

M1.8 earthquake 118 km ENE of Chignik, Alaska

A magnitude 1.8 earthquake struck 118 km ENE of Chignik, Alaska on Wed, Aug 18, 2021, 9:19 PM AKDT (05:19 UTC), 79 km (49 mi) below the surface.

A larger quake followed: M2.1 south of 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), micro
Local time
UTC
2021-08-19 05:19:05 UTC
Depth
79.2 km (49.2 mi), intermediate-depth
Epicenter
56.549° N, 156.546° 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
21

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 184 in the 60 days after this one and 15 in the 30 days before it.

After

  1. 2.1south of Alaska · 1861 days ago · 8 km deep · 87 km away
  2. 2.480 km ENE of Chignik, Alaska · 1861 days ago · 9 km deep · 45 km away
  3. 2.174 km ENE of Chignik, Alaska · 1861 days ago · 4 km deep · 51 km away
  4. 1.663 km WSW of Akhiok, Alaska · 1861 days ago · 6 km deep · 91 km away
  5. 1.970 km NE of Chignik, Alaska · 1860 days ago · 11 km deep · 59 km away
  6. 1.657 km W of Akhiok, Alaska · 1860 days ago · 53 km deep · 95 km away
  7. 2.297 km W of Akhiok, Alaska · 1860 days ago · 79 km deep · 70 km away
  8. 2.4119 km ESE of Chignik, Alaska · 1860 days ago · 28 km deep · 95 km away
  9. 3.3150 km ESE of Chignik, Alaska · 1858 days ago · 41 km deep · 90 km away
  10. 1.680 km ENE of Chignik, Alaska · 1858 days ago · 10 km deep · 39 km away
  11. 2.5152 km SW of Akhiok, Alaska · 1858 days ago · 25 km deep · 77 km away
  12. 1.677 km SE of Ugashik, Alaska · 1858 days ago · 78 km deep · 49 km away
  13. 1.773 km ESE of Ugashik, Alaska · 1857 days ago · 80 km deep · 69 km away
  14. 2.4162 km SW of Akhiok, Alaska · 1857 days ago · 46 km deep · 98 km away
  15. 2.2111 km SE of Ugashik, Alaska · 1857 days ago · 67 km deep · 36 km away
  16. 1.792 km ESE of Ugashik, Alaska · 1856 days ago · 20 km deep · 63 km away
  17. 1.951 km SE of Ugashik, Alaska · 1855 days ago · 9 km deep · 71 km away
  18. 2.1119 km SSE of Ugashik, Alaska · 1855 days ago · 73 km deep · 2 km away
  19. 1.942 km ESE of Chignik, Alaska · 1855 days ago · 55 km deep · 91 km away
  20. 2.396 km ESE of Ugashik, Alaska · 1854 days ago · 9 km deep · 71 km away
  21. 1.986 km ESE of Ugashik, Alaska · 1854 days ago · 2 km deep · 65 km away
  22. 1.588 km ESE of Ugashik, Alaska · 1854 days ago · 1 km deep · 73 km away
  23. 1.6111 km W of Akhiok, Alaska · 1854 days ago · 12 km deep · 45 km away
  24. 2.893 km ESE of Ugashik, Alaska · 1853 days ago · 4 km deep · 69 km away
  25. 1.9144 km ESE of Chignik, Alaska · 1853 days ago · 50 km deep · 92 km away
  26. 3.377 km ESE of Chignik, Alaska · 1852 days ago · 10 km deep · 70 km away
  27. 2.538 km SSW of Ugashik, Alaska · 1851 days ago · 8 km deep · 92 km away
  28. 1.892 km E of Chignik, Alaska · 1850 days ago · 31 km deep · 34 km away
  29. 1.675 km ESE of Chignik, Alaska · 1850 days ago · 12 km deep · 84 km away
  30. 1.975 km SE of Ugashik, Alaska · 1847 days ago · 3 km deep · 63 km away
  31. 2.141 km ENE of Chignik, Alaska · 1847 days ago · 81 km deep · 76 km away
  32. 1.798 km ESE of Ugashik, Alaska · 1847 days ago · 67 km deep · 74 km away
  33. 1.990 km ENE of Chignik, Alaska · 1846 days ago · 43 km deep · 28 km away
  34. 1.574 km WSW of Karluk, Alaska · 1846 days ago · 71 km deep · 99 km away
  35. 1.8124 km SE of Ugashik, Alaska · 1846 days ago · 68 km deep · 21 km away
  36. 2.2119 km ESE of Chignik, Alaska · 1845 days ago · 20 km deep · 58 km away
  37. 1.646 km ENE of Chignik, Alaska · 1845 days ago · 65 km deep · 72 km away
  38. 2.080 km SE of Ugashik, Alaska · 1844 days ago · 2 km deep · 50 km away
  39. 1.585 km SE of Ugashik, Alaska · 1844 days ago · 14 km deep · 47 km away
  40. 1.690 km WSW of Akhiok, Alaska · 1844 days ago · 7 km deep · 62 km away
  41. 3.5105 km WSW of Akhiok, Alaska · 1844 days ago · 70 km deep · 53 km away
  42. 2.2118 km ESE of Chignik, Alaska · 1843 days ago · 8 km deep · 51 km away
  43. 1.745 km ESE of Port Heiden, Alaska · 1841 days ago · 83 km deep · 89 km away
  44. 2.4102 km W of Akhiok, Alaska · 1841 days ago · 12 km deep · 56 km away
  45. 2.4101 km W of Akhiok, Alaska · 1841 days ago · 14 km deep · 57 km away
  46. 1.664 km ENE of Chignik, Alaska · 1840 days ago · 65 km deep · 57 km away
  47. 2.2161 km SW of Akhiok, Alaska · 1840 days ago · 1 km deep · 96 km away
  48. 3.296 km ENE of Chignik, Alaska · 1838 days ago · 6 km deep · 26 km away
  49. 2.275 km ESE of Chignik, Alaska · 1838 days ago · 19 km deep · 79 km away
  50. 1.7105 km W of Akhiok, Alaska · 1836 days ago · 29 km deep · 56 km away
  51. 2.5147 km SW of Akhiok, Alaska · 1836 days ago · 2 km deep · 93 km away
  52. 1.646 km SE of Ugashik, Alaska · 1834 days ago · 1 km deep · 82 km away
  53. 1.671 km SE of Ugashik, Alaska · 1834 days ago · 1 km deep · 64 km away
  54. 1.754 km ESE of Ugashik, Alaska · 1834 days ago · 2 km deep · 86 km away
  55. 1.860 km ESE of Ugashik, Alaska · 1833 days ago · 3 km deep · 76 km away
  56. 2.074 km NE of Chignik, Alaska · 1832 days ago · 2 km deep · 56 km away
  57. 1.995 km ESE of Ugashik, Alaska · 1832 days ago · 17 km deep · 66 km away
  58. 1.676 km ESE of Ugashik, Alaska · 1832 days ago · 29 km deep · 84 km away
  59. 3.299 km ENE of Chignik, Alaska · 1831 days ago · 7 km deep · 23 km away
  60. 2.586 km ENE of Chignik, Alaska · 1831 days ago · 12 km deep · 32 km away

The first 60 of 184.

Before

  1. 1.772 km ENE of Chignik, Alaska · 1861 days ago · 1 km deep · 51 km away
  2. 2.273 km ENE of Chignik, Alaska · 1861 days ago · 8 km deep · 53 km away
  3. 2.882 km ENE of Chignik, Alaska · 1861 days ago · 6 km deep · 42 km away
  4. 2.779 km ENE of Chignik, Alaska · 1861 days ago · 2 km deep · 45 km away
  5. 4.081 km ENE of Chignik, Alaska · 1861 days ago · 11 km deep · 44 km away
  6. 2.563 km NE of Chignik, Alaska · 1861 days ago · 75 km deep · 64 km away
  7. 3.398 km WSW of Akhiok, Alaska · 1862 days ago · 67 km deep · 58 km away
  8. 2.3117 km E of Chignik, Alaska · 1862 days ago · 57 km deep · 47 km away
  9. 3.291 km ENE of Chignik, Alaska · 1863 days ago · 56 km deep · 32 km away
  10. 2.7135 km ESE of Chignik, Alaska · 1863 days ago · 49 km deep · 85 km away
  11. 1.9107 km E of Chignik, Alaska · 1864 days ago · 3 km deep · 12 km away
  12. 2.0129 km SE of Chignik, Alaska · 1864 days ago · 41 km deep · 100 km away
  13. 1.763 km ESE of Ugashik, Alaska · 1864 days ago · 1 km deep · 74 km away
  14. 2.5134 km ESE of Chignik, Alaska · 1865 days ago · 16 km deep · 91 km away
  15. 2.653 km ESE of Chignik, Alaska · 1867 days ago · 46 km deep · 75 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021am48f5y. Read Tue, Sep 22, 2026, 7:46 PM UTC.