Alaska earthquakes

M3.1 earthquake 139 km SE of Chignik, Alaska

A magnitude 3.1 earthquake struck 139 km SE of Chignik, Alaska on Tue, Sep 7, 2021, 7:19 AM AKDT (15:19 UTC), 19 km (12 mi) below the surface.

A larger quake followed: M5.6 181 km SE 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
3.1 (ml), minor
Local time
UTC
2021-09-07 15:19:00 UTC
Depth
19.1 km (11.9 mi), shallow
Epicenter
55.267° N, 157.134° W
Region
Alaska
Felt reports
1
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was I, not felt shaking.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Stations used
53

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 77 in the 60 days after this one and at least 200 in the 30 days before it.

After

  1. 2.6177 km SSW of Akhiok, Alaska · 1845 days ago · 10 km deep · 97 km away
  2. 1.973 km SE of Perryville, Alaska · 1845 days ago · 9 km deep · 75 km away
  3. 1.757 km SE of Perryville, Alaska · 1845 days ago · 15 km deep · 93 km away
  4. 2.4205 km SE of Chignik, Alaska · 1845 days ago · 9 km deep · 67 km away
  5. 1.9165 km SE of Chignik, Alaska · 1844 days ago · 15 km deep · 60 km away
  6. 2.2118 km SSE of Perryville, Alaska · 1844 days ago · 28 km deep · 85 km away
  7. 2.8110 km SE of Chignik, Alaska · 1844 days ago · 13 km deep · 29 km away
  8. 3.0190 km SE of Chignik, Alaska · 1844 days ago · 32 km deep · 78 km away
  9. 3.3158 km SE of Perryville, Alaska · 1844 days ago · 21 km deep · 39 km away
  10. 2.7101 km SSE of Perryville, Alaska · 1843 days ago · 5 km deep · 90 km away
  11. 2.371 km SE of Chignik, Alaska · 1843 days ago · 47 km deep · 68 km away
  12. 3.3207 km SE of Perryville, Alaska · 1843 days ago · 25 km deep · 75 km away
  13. 2.8202 km SE of Perryville, Alaska · 1842 days ago · 16 km deep · 73 km away
  14. 2.6137 km SE of Chignik, Alaska · 1842 days ago · 21 km deep · 9 km away
  15. 2.275 km ESE of Chignik, Alaska · 1842 days ago · 19 km deep · 81 km away
  16. 2.8162 km SE of Perryville, Alaska · 1841 days ago · 6 km deep · 42 km away
  17. 2.359 km SE of Perryville, Alaska · 1840 days ago · 21 km deep · 90 km away
  18. 3.1118 km SE of Perryville, Alaska · 1839 days ago · 5 km deep · 45 km away
  19. 2.8149 km SSE of Chignik, Alaska · 1838 days ago · 12 km deep · 10 km away
  20. 2.8148 km SSE of Chignik, Alaska · 1838 days ago · 26 km deep · 10 km away
  21. 3.9197 km SE of Chignik, Alaska · 1837 days ago · 33 km deep · 62 km away
  22. 3.1131 km SE of Perryville, Alaska · 1836 days ago · 24 km deep · 63 km away
  23. 5.6181 km SE of Chignik, Alaska · 1836 days ago · 37 km deep · 46 km away · felt by 2
  24. 3.2191 km SE of Chignik, Alaska · 1836 days ago · 34 km deep · 56 km away
  25. 5.1200 km SE of Chignik, Alaska · 1836 days ago · 33 km deep · 64 km away · felt by 1 · tsunami flag
  26. 2.574 km SSE of Perryville, Alaska · 1832 days ago · 6 km deep · 97 km away
  27. 2.0Alaska Peninsula · 1831 days ago · 9 km deep · 88 km away
  28. 2.9144 km SE of Chignik, Alaska · 1830 days ago · 6 km deep · 7 km away
  29. 2.7144 km SE of Perryville, Alaska · 1829 days ago · 22 km deep · 40 km away
  30. 3.1194 km SE of Perryville, Alaska · 1828 days ago · 20 km deep · 60 km away
  31. 2.271 km SE of Perryville, Alaska · 1828 days ago · 14 km deep · 82 km away
  32. 2.890 km SE of Perryville, Alaska · 1827 days ago · 27 km deep · 68 km away
  33. 3.0204 km SE of Perryville, Alaska · 1826 days ago · 27 km deep · 79 km away
  34. 2.7168 km ESE of Chignik, Alaska · 1826 days ago · 12 km deep · 79 km away
  35. 2.765 km SE of Perryville, Alaska · 1826 days ago · 5 km deep · 88 km away
  36. 3.0204 km SE of Perryville, Alaska · 1824 days ago · 1 km deep · 71 km away
  37. 3.3205 km SE of Perryville, Alaska · 1823 days ago · 9 km deep · 72 km away
  38. 3.1south of Alaska · 1823 days ago · 8 km deep · 64 km away
  39. 2.460 km SE of Perryville, Alaska · 1823 days ago · 10 km deep · 95 km away
  40. 4.8137 km ESE of Chignik, Alaska · 1821 days ago · 45 km deep · 87 km away · felt by 1 · tsunami flag
  41. 2.8152 km SE of Chignik, Alaska · 1818 days ago · 60 km deep · 24 km away
  42. 2.155 km SE of Perryville, Alaska · 1818 days ago · 14 km deep · 95 km away
  43. 2.667 km SE of Perryville, Alaska · 1817 days ago · 20 km deep · 82 km away
  44. 2.262 km SE of Perryville, Alaska · 1817 days ago · 22 km deep · 86 km away
  45. 2.5208 km SE of Perryville, Alaska · 1817 days ago · 35 km deep · 74 km away
  46. 2.3127 km SE of Perryville, Alaska · 1816 days ago · 0 km deep · 22 km away
  47. 3.3189 km SE of Perryville, Alaska · 1813 days ago · 10 km deep · 80 km away
  48. 2.658 km SE of Perryville, Alaska · 1813 days ago · 11 km deep · 91 km away
  49. 2.3119 km ESE of Chignik, Alaska · 1811 days ago · 48 km deep · 99 km away
  50. 2.9137 km ESE of Chignik, Alaska · 1810 days ago · 48 km deep · 90 km away
  51. 3.9201 km SE of Chignik, Alaska · 1809 days ago · 4 km deep · 70 km away · felt by 1
  52. 3.058 km SE of Perryville, Alaska · 1809 days ago · 11 km deep · 90 km away
  53. 4.0140 km SSE of Chignik, Alaska · 1808 days ago · 39 km deep · 7 km away
  54. 2.4182 km ESE of Chignik, Alaska · 1807 days ago · 7 km deep · 83 km away
  55. 2.682 km SSE of Perryville, Alaska · 1806 days ago · 25 km deep · 92 km away
  56. 4.2137 km SE of Perryville, Alaska · 1805 days ago · 34 km deep · 38 km away
  57. 3.0126 km SE of Perryville, Alaska · 1805 days ago · 27 km deep · 34 km away
  58. 2.4120 km SSE of Chignik, Alaska · 1803 days ago · 42 km deep · 22 km away
  59. 2.960 km SSE of Perryville, Alaska · 1802 days ago · 25 km deep · 98 km away
  60. 3.0122 km SE of Chignik, Alaska · 1802 days ago · 9 km deep · 41 km away

The first 60 of 77.

Before

  1. 2.0109 km SSE of Perryville, Alaska · 1845 days ago · 15 km deep · 76 km away
  2. 1.759 km SE of Perryville, Alaska · 1845 days ago · 54 km deep · 92 km away
  3. 2.071 km SE of Perryville, Alaska · 1846 days ago · 13 km deep · 80 km away
  4. 2.5115 km SSE of Chignik, Alaska · 1846 days ago · 10 km deep · 24 km away
  5. 2.8199 km SE of Chignik, Alaska · 1847 days ago · 12 km deep · 70 km away
  6. 2.2118 km ESE of Chignik, Alaska · 1847 days ago · 8 km deep · 99 km away
  7. 2.167 km SE of Perryville, Alaska · 1847 days ago · 12 km deep · 81 km away
  8. 2.5116 km SE of Perryville, Alaska · 1848 days ago · 19 km deep · 44 km away
  9. 2.9118 km SSE of Chignik, Alaska · 1848 days ago · 11 km deep · 23 km away
  10. 3.3164 km SE of Chignik, Alaska · 1848 days ago · 6 km deep · 29 km away
  11. 2.2139 km SE of Perryville, Alaska · 1849 days ago · 48 km deep · 46 km away
  12. 2.5201 km SE of Perryville, Alaska · 1849 days ago · 33 km deep · 67 km away
  13. 2.6153 km SSE of Chignik, Alaska · 1849 days ago · 22 km deep · 15 km away
  14. 2.2119 km ESE of Chignik, Alaska · 1849 days ago · 20 km deep · 93 km away
  15. 2.8140 km SE of Perryville, Alaska · 1849 days ago · 26 km deep · 37 km away
  16. 2.4138 km SE of Perryville, Alaska · 1849 days ago · 45 km deep · 49 km away
  17. 3.9135 km SE of Perryville, Alaska · 1849 days ago · 45 km deep · 51 km away
  18. 2.2108 km SSE of Perryville, Alaska · 1849 days ago · 15 km deep · 91 km away
  19. 3.3158 km SE of Chignik, Alaska · 1849 days ago · 39 km deep · 46 km away
  20. 2.5161 km SE of Chignik, Alaska · 1850 days ago · 18 km deep · 25 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021bhpe8um (also filed as us7000f8vc). Read Sat, Sep 26, 2026, 9:14 PM UTC.