Alaska earthquakes

M1.8 earthquake 87 km ENE of Chignik, Alaska

A magnitude 1.8 earthquake struck 87 km ENE of Chignik, Alaska on Wed, Jul 21, 2021, 3:50 AM AKDT (11:50 UTC), 89 km (55 mi) below the surface.

A larger quake followed: M1.9 27 km SE of Ugashik, 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
2021-07-21 11:50:56 UTC
Depth
88.9 km (55.2 mi), intermediate-depth
Epicenter
56.596° N, 157.091° 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
23

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 143 in the 60 days after this one and 20 in the 30 days before it.

After

  1. 1.927 km SE of Ugashik, Alaska · 1891 days ago · 111 km deep · 82 km away
  2. 1.655 km ESE of Ugashik, Alaska · 1890 days ago · 15 km deep · 81 km away
  3. 2.261 km ENE of Chignik, Alaska · 1889 days ago · 93 km deep · 28 km away
  4. 1.9Alaska Peninsula · 1888 days ago · 94 km deep · 51 km away
  5. 1.9118 km ESE of Chignik, Alaska · 1887 days ago · 44 km deep · 83 km away
  6. 2.2122 km E of Chignik, Alaska · 1886 days ago · 25 km deep · 50 km away
  7. 5.799 km ESE of Chignik, Alaska · 1883 days ago · 35 km deep · 80 km away
  8. 4.1113 km ESE of Chignik, Alaska · 1883 days ago · 46 km deep · 96 km away
  9. 3.160 km SE of Ugashik, Alaska · 1883 days ago · 4 km deep · 68 km away
  10. 2.453 km SE of Ugashik, Alaska · 1883 days ago · 8 km deep · 75 km away
  11. 2.940 km SE of Ugashik, Alaska · 1883 days ago · 3 km deep · 80 km away
  12. 2.551 km SE of Ugashik, Alaska · 1883 days ago · 12 km deep · 73 km away
  13. 3.3113 km SE of Chignik, Alaska · 1883 days ago · 20 km deep · 99 km away
  14. 2.349 km SE of Ugashik, Alaska · 1883 days ago · 10 km deep · 72 km away
  15. 3.356 km SE of Ugashik, Alaska · 1883 days ago · 10 km deep · 70 km away
  16. 2.3110 km ESE of Chignik, Alaska · 1883 days ago · 5 km deep · 91 km away
  17. 2.171 km SE of Chignik, Alaska · 1883 days ago · 17 km deep · 82 km away
  18. 2.3104 km ESE of Chignik, Alaska · 1883 days ago · 12 km deep · 75 km away
  19. 2.372 km ESE of Chignik, Alaska · 1882 days ago · 14 km deep · 75 km away
  20. 2.0135 km SW of Akhiok, Alaska · 1882 days ago · 33 km deep · 80 km away
  21. 2.0112 km ESE of Chignik, Alaska · 1882 days ago · 19 km deep · 80 km away
  22. 3.3149 km ESE of Chignik, Alaska · 1882 days ago · 4 km deep · 99 km away
  23. 4.2130 km ESE of Chignik, Alaska · 1881 days ago · 39 km deep · 74 km away
  24. 2.6115 km ESE of Chignik, Alaska · 1880 days ago · 5 km deep · 92 km away
  25. 1.980 km SE of Chignik, Alaska · 1880 days ago · 10 km deep · 81 km away
  26. 2.073 km ESE of Ugashik, Alaska · 1880 days ago · 5 km deep · 79 km away
  27. 1.768 km ESE of Ugashik, Alaska · 1880 days ago · 1 km deep · 75 km away
  28. 1.767 km ESE of Chignik, Alaska · 1880 days ago · 28 km deep · 65 km away
  29. 1.9130 km ESE of Chignik, Alaska · 1880 days ago · 42 km deep · 75 km away
  30. 2.184 km ESE of Ugashik, Alaska · 1880 days ago · 6 km deep · 97 km away · felt by 1
  31. 1.686 km ESE of Ugashik, Alaska · 1880 days ago · 3 km deep · 97 km away
  32. 2.288 km ESE of Ugashik, Alaska · 1880 days ago · 4 km deep · 97 km away · felt by 1
  33. 1.965 km SSE of Ugashik, Alaska · 1880 days ago · 4 km deep · 48 km away
  34. 2.3101 km SSE of Ugashik, Alaska · 1879 days ago · 75 km deep · 30 km away
  35. 2.7122 km E of Chignik, Alaska · 1879 days ago · 35 km deep · 52 km away
  36. 1.961 km SE of Ugashik, Alaska · 1879 days ago · 5 km deep · 76 km away
  37. 2.196 km SE of Ugashik, Alaska · 1878 days ago · 13 km deep · 48 km away
  38. 1.997 km WSW of Akhiok, Alaska · 1877 days ago · 58 km deep · 85 km away
  39. 1.8133 km SW of Akhiok, Alaska · 1877 days ago · 12 km deep · 83 km away
  40. 2.072 km ESE of Ugashik, Alaska · 1877 days ago · 1 km deep · 76 km away
  41. 2.565 km SE of Ugashik, Alaska · 1877 days ago · 10 km deep · 74 km away · felt by 1
  42. 2.158 km SSE of Ugashik, Alaska · 1876 days ago · 5 km deep · 48 km away
  43. 1.560 km SE of Ugashik, Alaska · 1876 days ago · 9 km deep · 71 km away
  44. 3.060 km SE of Ugashik, Alaska · 1876 days ago · 9 km deep · 71 km away
  45. 2.061 km SE of Ugashik, Alaska · 1876 days ago · 8 km deep · 72 km away
  46. 3.361 km SE of Ugashik, Alaska · 1876 days ago · 5 km deep · 74 km away
  47. 1.5Alaska Peninsula · 1876 days ago · 9 km deep · 72 km away
  48. 2.157 km SE of Ugashik, Alaska · 1876 days ago · 7 km deep · 71 km away
  49. 2.359 km SE of Ugashik, Alaska · 1876 days ago · 8 km deep · 72 km away
  50. 2.260 km SSE of Ugashik, Alaska · 1876 days ago · 2 km deep · 46 km away
  51. 1.863 km SSE of Ugashik, Alaska · 1876 days ago · 8 km deep · 43 km away
  52. 2.162 km SSE of Ugashik, Alaska · 1876 days ago · 1 km deep · 44 km away
  53. 3.063 km SE of Ugashik, Alaska · 1876 days ago · 7 km deep · 71 km away
  54. 1.963 km SE of Ugashik, Alaska · 1876 days ago · 5 km deep · 72 km away
  55. 1.560 km SE of Ugashik, Alaska · 1876 days ago · 8 km deep · 72 km away
  56. 2.7107 km SSE of Ugashik, Alaska · 1876 days ago · 5 km deep · 30 km away
  57. 2.871 km SE of Ugashik, Alaska · 1876 days ago · 6 km deep · 72 km away
  58. 1.863 km SE of Ugashik, Alaska · 1876 days ago · 9 km deep · 72 km away
  59. 1.562 km SE of Ugashik, Alaska · 1876 days ago · 12 km deep · 74 km away
  60. 2.063 km SE of Ugashik, Alaska · 1876 days ago · 11 km deep · 70 km away

The first 60 of 143.

Before

  1. 2.455 km ESE of Ugashik, Alaska · 1891 days ago · 96 km deep · 87 km away
  2. 2.346 km SSW of Ugashik, Alaska · 1891 days ago · 3 km deep · 63 km away
  3. 2.2114 km E of Chignik, Alaska · 1894 days ago · 39 km deep · 54 km away
  4. 2.188 km ESE of Chignik, Alaska · 1894 days ago · 25 km deep · 67 km away
  5. 2.3115 km SSE of Ugashik, Alaska · 1894 days ago · 47 km deep · 40 km away
  6. 1.961 km SSE of Ugashik, Alaska · 1895 days ago · 80 km deep · 48 km away
  7. 1.861 km E of Port Heiden, Alaska · 1897 days ago · 90 km deep · 48 km away
  8. 1.674 km ESE of Port Heiden, Alaska · 1898 days ago · 77 km deep · 32 km away
  9. 2.125 km SSE of Port Heiden, Alaska · 1899 days ago · 10 km deep · 88 km away
  10. 1.8100 km ESE of Ugashik, Alaska · 1900 days ago · 70 km deep · 85 km away
  11. 3.226 km S of Ugashik, Alaska · 1900 days ago · 122 km deep · 78 km away · felt by 1
  12. 1.9100 km SE of Ugashik, Alaska · 1901 days ago · 60 km deep · 55 km away
  13. 1.961 km E of Port Heiden, Alaska · 1902 days ago · 5 km deep · 53 km away
  14. 2.172 km E of Chignik, Alaska · 1904 days ago · 55 km deep · 32 km away
  15. 2.042 km ENE of Chignik, Alaska · 1907 days ago · 66 km deep · 45 km away
  16. 2.645 km SSW of Ugashik, Alaska · 1909 days ago · 23 km deep · 73 km away
  17. 2.3124 km WSW of Akhiok, Alaska · 1910 days ago · 81 km deep · 60 km away
  18. 2.5110 km E of Chignik, Alaska · 1912 days ago · 54 km deep · 47 km away
  19. 2.287 km ENE of Chignik, Alaska · 1912 days ago · 65 km deep · 0 km away
  20. 1.815 km ESE of Chignik, Alaska · 1914 days ago · 83 km deep · 77 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0219a9epjs. Read Thu, Sep 24, 2026, 7:09 AM UTC.