Alaska earthquakes

M2.1 earthquake 139 km ESE of Chignik, Alaska

A magnitude 2.1 earthquake struck 139 km ESE of Chignik, Alaska on Tue, Aug 3, 2021, 11:30 PM AKDT (07:30 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
2.1 (ml), micro
Local time
UTC
2021-08-04 07:30:24 UTC
Depth
33.2 km (20.6 mi), shallow
Epicenter
55.625° N, 156.514° 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
11

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. 1.8133 km SW of Akhiok, Alaska · 1877 days ago · 12 km deep · 78 km away
  2. 3.0152 km SE of Chignik, Alaska · 1877 days ago · 21 km deep · 47 km away
  3. 3.3186 km SSW of Akhiok, Alaska · 1877 days ago · 1 km deep · 59 km away
  4. 3.3186 km SSW of Akhiok, Alaska · 1877 days ago · 47 km deep · 51 km away
  5. 2.4159 km SE of Chignik, Alaska · 1877 days ago · 15 km deep · 58 km away
  6. 3.3145 km SE of Perryville, Alaska · 1877 days ago · 23 km deep · 72 km away
  7. 2.5134 km SE of Perryville, Alaska · 1877 days ago · 26 km deep · 96 km away
  8. 2.8184 km SE of Chignik, Alaska · 1877 days ago · 16 km deep · 45 km away
  9. 2.8199 km SE of Chignik, Alaska · 1876 days ago · 1 km deep · 76 km away
  10. 3.0149 km SE of Perryville, Alaska · 1876 days ago · 14 km deep · 95 km away
  11. 3.4146 km SE of Perryville, Alaska · 1876 days ago · 25 km deep · 96 km away
  12. 2.7143 km SE of Chignik, Alaska · 1876 days ago · 25 km deep · 44 km away
  13. 2.5140 km SE of Perryville, Alaska · 1876 days ago · 16 km deep · 92 km away
  14. 2.8186 km SSW of Akhiok, Alaska · 1876 days ago · 15 km deep · 60 km away
  15. 2.7194 km SE of Perryville, Alaska · 1876 days ago · 19 km deep · 96 km away
  16. 2.7121 km SE of Perryville, Alaska · 1876 days ago · 21 km deep · 100 km away
  17. 2.4south of Alaska · 1876 days ago · 20 km deep · 22 km away
  18. 2.5190 km SSW of Akhiok, Alaska · 1876 days ago · 23 km deep · 54 km away
  19. 4.3159 km SSE of Chignik, Alaska · 1876 days ago · 22 km deep · 68 km away
  20. 2.6125 km ESE of Chignik, Alaska · 1876 days ago · 10 km deep · 38 km away
  21. 2.7south of Alaska · 1876 days ago · 2 km deep · 18 km away
  22. 1.974 km SSE of Chignik, Alaska · 1876 days ago · 23 km deep · 89 km away
  23. 2.3128 km SE of Perryville, Alaska · 1875 days ago · 64 km deep · 82 km away
  24. 3.0123 km SE of Perryville, Alaska · 1875 days ago · 42 km deep · 75 km away
  25. 2.0124 km SE of Perryville, Alaska · 1875 days ago · 48 km deep · 97 km away
  26. 2.8155 km SE of Chignik, Alaska · 1875 days ago · 59 km deep · 16 km away
  27. 2.5160 km SE of Chignik, Alaska · 1875 days ago · 39 km deep · 66 km away
  28. 2.2south of Alaska · 1875 days ago · 49 km deep · 16 km away
  29. 2.1127 km SE of Perryville, Alaska · 1874 days ago · 66 km deep · 75 km away
  30. 2.878 km SE of Chignik, Alaska · 1874 days ago · 20 km deep · 61 km away
  31. 3.1129 km SE of Perryville, Alaska · 1874 days ago · 33 km deep · 89 km away
  32. 2.6150 km SE of Chignik, Alaska · 1874 days ago · 37 km deep · 37 km away
  33. 2.4113 km SE of Chignik, Alaska · 1873 days ago · 25 km deep · 31 km away
  34. 2.6137 km SSW of Akhiok, Alaska · 1873 days ago · 47 km deep · 84 km away
  35. 2.9129 km SE of Perryville, Alaska · 1873 days ago · 33 km deep · 98 km away
  36. 2.4146 km SE of Chignik, Alaska · 1873 days ago · 39 km deep · 29 km away
  37. 3.2152 km ESE of Chignik, Alaska · 1873 days ago · 33 km deep · 42 km away
  38. 4.0160 km SE of Chignik, Alaska · 1873 days ago · 29 km deep · 23 km away
  39. 2.3120 km SE of Chignik, Alaska · 1872 days ago · 27 km deep · 34 km away
  40. 2.7115 km SE of Perryville, Alaska · 1872 days ago · 12 km deep · 95 km away
  41. 3.6194 km SE of Chignik, Alaska · 1872 days ago · 34 km deep · 71 km away
  42. 2.7202 km SE of Chignik, Alaska · 1872 days ago · 10 km deep · 77 km away
  43. 3.6192 km SSW of Akhiok, Alaska · 1872 days ago · 37 km deep · 57 km away
  44. 2.7183 km ESE of Chignik, Alaska · 1872 days ago · 24 km deep · 46 km away
  45. 3.6136 km SE of Perryville, Alaska · 1872 days ago · 21 km deep · 80 km away
  46. 3.3152 km SSE of Chignik, Alaska · 1872 days ago · 38 km deep · 67 km away
  47. 3.7156 km SE of Chignik, Alaska · 1871 days ago · 10 km deep · 27 km away
  48. 3.3159 km SSE of Chignik, Alaska · 1871 days ago · 25 km deep · 72 km away
  49. 3.2119 km SSE of Chignik, Alaska · 1871 days ago · 19 km deep · 64 km away
  50. 2.1113 km SSE of Chignik, Alaska · 1870 days ago · 23 km deep · 61 km away
  51. 2.5190 km SE of Chignik, Alaska · 1870 days ago · 33 km deep · 70 km away
  52. 2.5191 km SE of Chignik, Alaska · 1870 days ago · 12 km deep · 54 km away
  53. 2.6158 km SE of Chignik, Alaska · 1870 days ago · 8 km deep · 49 km away
  54. 2.5132 km SE of Perryville, Alaska · 1870 days ago · 31 km deep · 97 km away
  55. 2.3111 km SSE of Chignik, Alaska · 1870 days ago · 0 km deep · 71 km away
  56. 2.3159 km SE of Chignik, Alaska · 1870 days ago · 20 km deep · 29 km away
  57. 2.5128 km SSE of Chignik, Alaska · 1870 days ago · 6 km deep · 69 km away
  58. 2.2121 km SE of Perryville, Alaska · 1870 days ago · 13 km deep · 77 km away
  59. 2.8139 km SE of Chignik, Alaska · 1869 days ago · 47 km deep · 22 km away
  60. 2.4129 km SE of Chignik, Alaska · 1869 days ago · 48 km deep · 17 km away

The first 60 of at least 201.

Before

  1. 2.9129 km SE of Chignik, Alaska · 1877 days ago · 11 km deep · 15 km away
  2. 2.9157 km SE of Chignik, Alaska · 1877 days ago · 9 km deep · 31 km away
  3. 2.9167 km SE of Chignik, Alaska · 1877 days ago · 25 km deep · 55 km away
  4. 3.6114 km SE of Perryville, Alaska · 1877 days ago · 26 km deep · 83 km away
  5. 2.5147 km SSE of Chignik, Alaska · 1878 days ago · 37 km deep · 63 km away
  6. 2.9168 km SE of Chignik, Alaska · 1878 days ago · 40 km deep · 30 km away
  7. 3.6161 km SE of Chignik, Alaska · 1878 days ago · 19 km deep · 61 km away
  8. 3.4171 km SE of Chignik, Alaska · 1878 days ago · 15 km deep · 56 km away
  9. 3.0141 km SE of Chignik, Alaska · 1878 days ago · 25 km deep · 30 km away
  10. 2.5170 km ESE of Chignik, Alaska · 1878 days ago · 25 km deep · 37 km away
  11. 2.3125 km SE of Chignik, Alaska · 1878 days ago · 25 km deep · 49 km away
  12. 3.2154 km SSE of Chignik, Alaska · 1878 days ago · 21 km deep · 66 km away
  13. 2.5126 km SE of Chignik, Alaska · 1878 days ago · 11 km deep · 15 km away
  14. 2.5156 km ESE of Chignik, Alaska · 1878 days ago · 8 km deep · 24 km away
  15. 2.7169 km SE of Chignik, Alaska · 1879 days ago · 25 km deep · 53 km away
  16. 3.7152 km SSE of Chignik, Alaska · 1879 days ago · 19 km deep · 62 km away · felt by 1
  17. 2.5112 km SE of Chignik, Alaska · 1879 days ago · 28 km deep · 54 km away
  18. 2.9162 km ESE of Chignik, Alaska · 1879 days ago · 35 km deep · 32 km away
  19. 3.3133 km SE of Perryville, Alaska · 1879 days ago · 27 km deep · 82 km away
  20. 3.0182 km SSW of Akhiok, Alaska · 1879 days ago · 10 km deep · 88 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0219xcfh8t. Read Thu, Sep 24, 2026, 2:38 PM UTC.