Alaska earthquakes

M3.1 earthquake 129 km SE of Perryville, Alaska

A magnitude 3.1 earthquake struck 129 km SE of Perryville, Alaska on Sat, Aug 7, 2021, 8:49 AM AKDT (16:49 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M6.9 125 km SE of Perryville, 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
3.1 (ml), minor
Local time
UTC
2021-08-07 16:49:32 UTC
Depth
33.4 km (20.8 mi), shallow
Epicenter
55.127° N, 157.622° 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.

Location uncertainty
About 9.6 km horizontally, 14.0 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
209°, poorly surrounded by stations
Stations used
15

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 201 in the 60 days after this one and at least 200 in the 30 days before it.

After

  1. 2.6150 km SE of Chignik, Alaska · 1874 days ago · 37 km deep · 60 km away
  2. 2.4113 km SE of Chignik, Alaska · 1873 days ago · 25 km deep · 69 km away
  3. 2.5125 km SE of Perryville, Alaska · 1873 days ago · 46 km deep · 22 km away
  4. 2.491 km SSE of Perryville, Alaska · 1873 days ago · 13 km deep · 73 km away
  5. 2.9129 km SE of Perryville, Alaska · 1873 days ago · 33 km deep · 9 km away
  6. 2.4146 km SE of Chignik, Alaska · 1873 days ago · 39 km deep · 65 km away
  7. 2.266 km SE of Perryville, Alaska · 1873 days ago · 22 km deep · 66 km away
  8. 4.0160 km SE of Chignik, Alaska · 1873 days ago · 29 km deep · 91 km away
  9. 2.641 km SSE of Perryville, Alaska · 1873 days ago · 49 km deep · 98 km away
  10. 2.3120 km SE of Chignik, Alaska · 1872 days ago · 27 km deep · 58 km away
  11. 2.5115 km SE of Perryville, Alaska · 1872 days ago · 18 km deep · 26 km away
  12. 2.7115 km SE of Perryville, Alaska · 1872 days ago · 12 km deep · 15 km away
  13. 3.6194 km SE of Chignik, Alaska · 1872 days ago · 34 km deep · 84 km away
  14. 2.7202 km SE of Chignik, Alaska · 1872 days ago · 10 km deep · 90 km away
  15. 3.6136 km SE of Perryville, Alaska · 1872 days ago · 21 km deep · 11 km away
  16. 1.972 km S of Perryville, Alaska · 1872 days ago · 13 km deep · 90 km away
  17. 3.3152 km SSE of Chignik, Alaska · 1872 days ago · 38 km deep · 32 km away
  18. 3.372 km SE of Perryville, Alaska · 1872 days ago · 19 km deep · 60 km away
  19. 3.7156 km SE of Chignik, Alaska · 1871 days ago · 10 km deep · 76 km away
  20. 3.3159 km SSE of Chignik, Alaska · 1871 days ago · 25 km deep · 34 km away
  21. 2.261 km SE of Perryville, Alaska · 1871 days ago · 21 km deep · 71 km away
  22. 3.2119 km SSE of Chignik, Alaska · 1871 days ago · 19 km deep · 30 km away
  23. 2.2south of Alaska · 1871 days ago · 18 km deep · 28 km away
  24. 1.859 km SSE of Perryville, Alaska · 1870 days ago · 26 km deep · 76 km away
  25. 2.1113 km SSE of Chignik, Alaska · 1870 days ago · 23 km deep · 37 km away
  26. 3.1204 km SE of Perryville, Alaska · 1870 days ago · 27 km deep · 75 km away
  27. 4.1204 km SE of Perryville, Alaska · 1870 days ago · 21 km deep · 75 km away
  28. 3.8200 km SE of Perryville, Alaska · 1870 days ago · 32 km deep · 70 km away
  29. 3.8202 km SE of Perryville, Alaska · 1870 days ago · 27 km deep · 72 km away
  30. 2.8202 km SE of Perryville, Alaska · 1870 days ago · 34 km deep · 73 km away
  31. 4.1200 km SE of Perryville, Alaska · 1870 days ago · 30 km deep · 71 km away
  32. 2.5190 km SE of Chignik, Alaska · 1870 days ago · 33 km deep · 78 km away
  33. 2.6158 km SE of Chignik, Alaska · 1870 days ago · 8 km deep · 55 km away
  34. 2.9114 km SSE of Perryville, Alaska · 1870 days ago · 20 km deep · 46 km away
  35. 2.5132 km SE of Perryville, Alaska · 1870 days ago · 31 km deep · 9 km away
  36. 2.3111 km SSE of Chignik, Alaska · 1870 days ago · 0 km deep · 31 km away
  37. 2.3159 km SE of Chignik, Alaska · 1870 days ago · 20 km deep · 77 km away
  38. 2.9204 km SE of Perryville, Alaska · 1870 days ago · 33 km deep · 74 km away
  39. 2.5128 km SSE of Chignik, Alaska · 1870 days ago · 6 km deep · 22 km away
  40. 2.170 km SE of Perryville, Alaska · 1870 days ago · 24 km deep · 60 km away
  41. 3.1138 km SSE of Perryville, Alaska · 1870 days ago · 22 km deep · 54 km away
  42. 2.160 km SE of Perryville, Alaska · 1870 days ago · 20 km deep · 69 km away
  43. 2.2121 km SE of Perryville, Alaska · 1870 days ago · 13 km deep · 17 km away
  44. 2.692 km SSE of Perryville, Alaska · 1870 days ago · 13 km deep · 56 km away
  45. 1.960 km S of Perryville, Alaska · 1869 days ago · 26 km deep · 99 km away
  46. 2.9Alaska Peninsula · 1869 days ago · 16 km deep · 68 km away
  47. 2.8139 km SE of Chignik, Alaska · 1869 days ago · 47 km deep · 68 km away
  48. 2.4129 km SE of Chignik, Alaska · 1869 days ago · 48 km deep · 74 km away
  49. 2.0105 km SSE of Perryville, Alaska · 1869 days ago · 19 km deep · 67 km away
  50. 2.163 km SE of Perryville, Alaska · 1869 days ago · 15 km deep · 67 km away
  51. 2.4107 km SSE of Perryville, Alaska · 1869 days ago · 15 km deep · 50 km away
  52. 4.0135 km SSE of Chignik, Alaska · 1869 days ago · 38 km deep · 22 km away
  53. 3.1126 km SSE of Perryville, Alaska · 1869 days ago · 26 km deep · 51 km away
  54. 2.0Alaska Peninsula · 1869 days ago · 40 km deep · 69 km away
  55. 1.967 km SE of Perryville, Alaska · 1869 days ago · 13 km deep · 63 km away
  56. 2.4134 km SSE of Chignik, Alaska · 1869 days ago · 19 km deep · 24 km away
  57. 3.0133 km SSE of Perryville, Alaska · 1869 days ago · 26 km deep · 50 km away
  58. 2.898 km SSE of Perryville, Alaska · 1869 days ago · 6 km deep · 51 km away
  59. 3.3156 km SSE of Chignik, Alaska · 1869 days ago · 43 km deep · 34 km away
  60. 2.296 km SSE of Perryville, Alaska · 1869 days ago · 9 km deep · 74 km away

The first 60 of at least 201.

Before

  1. 2.7140 km SE of Perryville, Alaska · 1874 days ago · 24 km deep · 26 km away
  2. 2.878 km SE of Chignik, Alaska · 1874 days ago · 20 km deep · 88 km away
  3. 2.1127 km SE of Perryville, Alaska · 1874 days ago · 66 km deep · 15 km away
  4. 3.3204 km SE of Perryville, Alaska · 1874 days ago · 29 km deep · 74 km away
  5. 2.2south of Alaska · 1875 days ago · 49 km deep · 73 km away
  6. 2.5160 km SE of Chignik, Alaska · 1875 days ago · 39 km deep · 45 km away
  7. 1.753 km SE of Perryville, Alaska · 1875 days ago · 16 km deep · 76 km away
  8. 2.8155 km SE of Chignik, Alaska · 1875 days ago · 59 km deep · 94 km away
  9. 2.0124 km SE of Perryville, Alaska · 1875 days ago · 48 km deep · 9 km away
  10. 3.0123 km SE of Perryville, Alaska · 1875 days ago · 42 km deep · 17 km away
  11. 1.876 km SE of Perryville, Alaska · 1875 days ago · 50 km deep · 53 km away
  12. 2.3128 km SE of Perryville, Alaska · 1875 days ago · 64 km deep · 8 km away
  13. 2.4188 km SE of Perryville, Alaska · 1875 days ago · 41 km deep · 62 km away
  14. 1.958 km SE of Perryville, Alaska · 1875 days ago · 14 km deep · 72 km away
  15. 2.293 km SSE of Perryville, Alaska · 1875 days ago · 20 km deep · 75 km away
  16. 1.974 km SSE of Chignik, Alaska · 1875 days ago · 23 km deep · 64 km away
  17. 2.561 km SE of Perryville, Alaska · 1876 days ago · 14 km deep · 68 km away
  18. 4.3159 km SSE of Chignik, Alaska · 1876 days ago · 22 km deep · 38 km away
  19. 2.4south of Alaska · 1876 days ago · 20 km deep · 68 km away
  20. 2.4198 km SE of Perryville, Alaska · 1876 days ago · 19 km deep · 68 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000f36x. Read Thu, Sep 24, 2026, 12:18 PM UTC.