Alaska earthquakes

M3.1 earthquake 138 km S of Akhiok, Alaska

A magnitude 3.1 earthquake struck 138 km S of Akhiok, Alaska on Fri, Jul 30, 2021, 2:04 PM AKDT (22:04 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.7 142 km S of Akhiok, 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
2021-07-30 22:04:01 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
55.715° N, 154.476° 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 11.0 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.07
Depth from
Operator assigned
Station coverage gap
274°, poorly surrounded by stations
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: 56 in the 60 days after this one and 34 in the 30 days before it.

After

  1. 4.7142 km S of Akhiok, Alaska · 1882 days ago · 12 km deep · 5 km away · tsunami flag
  2. 3.6179 km ESE of Chignik, Alaska · 1882 days ago · 33 km deep · 88 km away
  3. 3.3176 km ESE of Chignik, Alaska · 1882 days ago · 7 km deep · 87 km away
  4. 2.0164 km ESE of Chignik, Alaska · 1882 days ago · 16 km deep · 92 km away
  5. 2.4209 km SE of Chignik, Alaska · 1882 days ago · 16 km deep · 92 km away
  6. 3.2south of Alaska · 1881 days ago · 36 km deep · 83 km away
  7. 3.0175 km SSW of Akhiok, Alaska · 1881 days ago · 35 km deep · 74 km away
  8. 3.1171 km SSW of Akhiok, Alaska · 1881 days ago · 35 km deep · 78 km away
  9. 2.5Kodiak Island region, Alaska · 1881 days ago · 26 km deep · 80 km away
  10. 2.3202 km SSW of Akhiok, Alaska · 1881 days ago · 20 km deep · 83 km away
  11. 2.1166 km SW of Akhiok, Alaska · 1881 days ago · 34 km deep · 82 km away
  12. 4.5162 km ESE of Chignik, Alaska · 1881 days ago · 37 km deep · 96 km away
  13. 1.8160 km ESE of Chignik, Alaska · 1881 days ago · 3 km deep · 94 km away
  14. 2.5172 km SSW of Akhiok, Alaska · 1881 days ago · 47 km deep · 75 km away
  15. 2.1170 km ESE of Chignik, Alaska · 1881 days ago · 47 km deep · 89 km away
  16. 4.3206 km SSW of Akhiok, Alaska · 1880 days ago · 34 km deep · 72 km away
  17. 3.3205 km SSW of Akhiok, Alaska · 1879 days ago · 10 km deep · 69 km away
  18. 2.8173 km ESE of Chignik, Alaska · 1879 days ago · 33 km deep · 92 km away
  19. 3.0182 km SSW of Akhiok, Alaska · 1879 days ago · 10 km deep · 56 km away
  20. 2.9162 km ESE of Chignik, Alaska · 1879 days ago · 35 km deep · 97 km away
  21. 2.4145 km SSW of Akhiok, Alaska · 1878 days ago · 20 km deep · 17 km away
  22. 2.5170 km ESE of Chignik, Alaska · 1878 days ago · 25 km deep · 91 km away
  23. 3.3186 km SSW of Akhiok, Alaska · 1877 days ago · 1 km deep · 77 km away
  24. 3.3186 km SSW of Akhiok, Alaska · 1877 days ago · 47 km deep · 82 km away
  25. 3.2231 km SSW of Akhiok, Alaska · 1877 days ago · 12 km deep · 99 km away
  26. 2.8186 km SSW of Akhiok, Alaska · 1876 days ago · 15 km deep · 76 km away
  27. 2.5190 km SSW of Akhiok, Alaska · 1876 days ago · 23 km deep · 82 km away
  28. 2.6137 km SSW of Akhiok, Alaska · 1873 days ago · 47 km deep · 51 km away
  29. 3.6192 km SSW of Akhiok, Alaska · 1872 days ago · 37 km deep · 82 km away
  30. 2.7183 km ESE of Chignik, Alaska · 1872 days ago · 24 km deep · 86 km away
  31. 3.0207 km S of Akhiok, Alaska · 1870 days ago · 10 km deep · 81 km away
  32. 2.3170 km SSW of Akhiok, Alaska · 1868 days ago · 4 km deep · 66 km away
  33. 2.3183 km ESE of Chignik, Alaska · 1868 days ago · 13 km deep · 88 km away
  34. 2.155 km SW of Akhiok, Alaska · 1860 days ago · 66 km deep · 96 km away
  35. 2.5152 km SW of Akhiok, Alaska · 1860 days ago · 25 km deep · 92 km away
  36. 2.4162 km SW of Akhiok, Alaska · 1859 days ago · 46 km deep · 80 km away
  37. 2.6166 km ESE of Chignik, Alaska · 1858 days ago · 16 km deep · 96 km away
  38. 2.6158 km SSW of Akhiok, Alaska · 1857 days ago · 41 km deep · 50 km away
  39. 3.0154 km S of Akhiok, Alaska · 1856 days ago · 27 km deep · 47 km away
  40. 2.8190 km SSW of Akhiok, Alaska · 1852 days ago · 17 km deep · 78 km away
  41. 1.6south of Alaska · 1851 days ago · 2 km deep · 72 km away
  42. 1.9186 km S of Akhiok, Alaska · 1851 days ago · 8 km deep · 56 km away
  43. 3.0169 km ESE of Chignik, Alaska · 1850 days ago · 18 km deep · 97 km away
  44. 2.290 km S of Akhiok, Alaska · 1850 days ago · 29 km deep · 48 km away
  45. 1.8157 km SSW of Akhiok, Alaska · 1847 days ago · 10 km deep · 68 km away
  46. 2.9185 km SSW of Akhiok, Alaska · 1846 days ago · 11 km deep · 64 km away
  47. 2.6177 km SSW of Akhiok, Alaska · 1843 days ago · 10 km deep · 79 km away
  48. 2.2161 km SW of Akhiok, Alaska · 1842 days ago · 1 km deep · 82 km away
  49. 2.9167 km SW of Akhiok, Alaska · 1841 days ago · 5 km deep · 78 km away
  50. 2.3167 km SW of Akhiok, Alaska · 1839 days ago · 27 km deep · 79 km away
  51. 1.9128 km SSW of Akhiok, Alaska · 1838 days ago · 7 km deep · 57 km away
  52. 2.5147 km SW of Akhiok, Alaska · 1838 days ago · 2 km deep · 74 km away
  53. 2.462 km SSW of Akhiok, Alaska · 1833 days ago · 45 km deep · 76 km away
  54. 2.3160 km SSW of Akhiok, Alaska · 1828 days ago · 8 km deep · 49 km away
  55. 2.0157 km SW of Akhiok, Alaska · 1828 days ago · 3 km deep · 80 km away
  56. 2.7168 km ESE of Chignik, Alaska · 1823 days ago · 12 km deep · 98 km away

Before

  1. 2.070 km SW of Akhiok, Alaska · 1882 days ago · 33 km deep · 97 km away
  2. 2.3173 km ESE of Chignik, Alaska · 1882 days ago · 41 km deep · 87 km away
  3. 2.5163 km ESE of Chignik, Alaska · 1882 days ago · 44 km deep · 97 km away
  4. 2.6189 km ESE of Chignik, Alaska · 1882 days ago · 47 km deep · 83 km away
  5. 3.0195 km ESE of Chignik, Alaska · 1882 days ago · 36 km deep · 87 km away
  6. 3.7176 km SSW of Akhiok, Alaska · 1882 days ago · 35 km deep · 78 km away
  7. 2.8171 km ESE of Chignik, Alaska · 1882 days ago · 39 km deep · 89 km away
  8. 2.8199 km SE of Chignik, Alaska · 1882 days ago · 33 km deep · 90 km away
  9. 4.2197 km ESE of Chignik, Alaska · 1883 days ago · 37 km deep · 85 km away
  10. 3.1169 km ESE of Chignik, Alaska · 1883 days ago · 35 km deep · 97 km away
  11. 3.0186 km SSW of Akhiok, Alaska · 1883 days ago · 19 km deep · 75 km away
  12. 3.6192 km SSW of Akhiok, Alaska · 1883 days ago · 40 km deep · 83 km away
  13. 3.3south of Alaska · 1883 days ago · 33 km deep · 80 km away
  14. 4.2165 km SSW of Akhiok, Alaska · 1883 days ago · 15 km deep · 46 km away
  15. 3.0159 km ESE of Chignik, Alaska · 1883 days ago · 9 km deep · 100 km away
  16. 3.0163 km SSW of Akhiok, Alaska · 1883 days ago · 40 km deep · 65 km away
  17. 4.5185 km SSW of Akhiok, Alaska · 1883 days ago · 37 km deep · 83 km away
  18. 3.6222 km SSW of Akhiok, Alaska · 1883 days ago · 20 km deep · 96 km away
  19. 3.0204 km SSW of Akhiok, Alaska · 1883 days ago · 37 km deep · 86 km away
  20. 3.7182 km SSW of Akhiok, Alaska · 1883 days ago · 7 km deep · 78 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000f2qu. Read Thu, Sep 24, 2026, 2:36 PM UTC.