Alaska earthquakes

M3.5 earthquake 168 km SSE of False Pass, Alaska

A magnitude 3.5 earthquake struck 168 km SSE of False Pass, Alaska on Thu, Aug 5, 2021, 3:25 PM AKDT (23:25 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.7 152 km SE of Akutan, 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
3.5 (mb), minor
Local time
UTC
2021-08-05 23:25:55 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
53.400° N, 162.693° 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 7.4 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.28
Depth from
Operator assigned
Station coverage gap
215°, poorly surrounded by stations
Stations used
51

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 104 in the 60 days after this one and 34 in the 30 days before it.

After

  1. 2.0143 km SSE of False Pass, Alaska · 1874 days ago · 25 km deep · 25 km away
  2. 2.5145 km SSE of False Pass, Alaska · 1874 days ago · 10 km deep · 23 km away
  3. 2.0145 km SSE of False Pass, Alaska · 1874 days ago · 42 km deep · 23 km away
  4. 3.3167 km SSE of False Pass, Alaska · 1873 days ago · 10 km deep · 3 km away
  5. 2.191 km S of False Pass, Alaska · 1871 days ago · 26 km deep · 93 km away
  6. 2.3118 km ESE of Akutan, Alaska · 1871 days ago · 23 km deep · 100 km away
  7. 2.6104 km S of False Pass, Alaska · 1870 days ago · 35 km deep · 65 km away
  8. 2.1148 km SE of Akutan, Alaska · 1870 days ago · 33 km deep · 97 km away
  9. 2.6157 km S of False Pass, Alaska · 1869 days ago · 26 km deep · 23 km away
  10. 1.981 km SSE of False Pass, Alaska · 1869 days ago · 26 km deep · 89 km away
  11. 1.9112 km S of False Pass, Alaska · 1869 days ago · 26 km deep · 62 km away
  12. 1.898 km S of False Pass, Alaska · 1868 days ago · 26 km deep · 84 km away
  13. 1.983 km SSE of False Pass, Alaska · 1868 days ago · 25 km deep · 87 km away
  14. 1.985 km SSE of False Pass, Alaska · 1868 days ago · 26 km deep · 85 km away
  15. 2.185 km S of False Pass, Alaska · 1867 days ago · 46 km deep · 92 km away
  16. 1.8159 km SSE of False Pass, Alaska · 1866 days ago · 27 km deep · 13 km away
  17. 2.7207 km SSE of False Pass, Alaska · 1863 days ago · 5 km deep · 54 km away
  18. 2.5102 km SSE of False Pass, Alaska · 1862 days ago · 32 km deep · 66 km away
  19. 2.3Alaska Peninsula · 1862 days ago · 37 km deep · 86 km away
  20. 2.2247 km SE of Akutan, Alaska · 1861 days ago · 9 km deep · 95 km away
  21. 3.7152 km SE of Akutan, Alaska · 1860 days ago · 27 km deep · 85 km away
  22. 2.2107 km S of False Pass, Alaska · 1859 days ago · 28 km deep · 84 km away
  23. 2.5118 km SSW of False Pass, Alaska · 1858 days ago · 17 km deep · 89 km away
  24. 2.6103 km S of False Pass, Alaska · 1858 days ago · 15 km deep · 67 km away
  25. 2.0126 km ESE of Akutan, Alaska · 1858 days ago · 26 km deep · 93 km away
  26. 2.099 km SSE of False Pass, Alaska · 1858 days ago · 10 km deep · 70 km away
  27. 2.8254 km SSE of False Pass, Alaska · 1858 days ago · 10 km deep · 89 km away
  28. 2.088 km SE of False Pass, Alaska · 1856 days ago · 13 km deep · 98 km away
  29. 1.891 km SE of False Pass, Alaska · 1856 days ago · 13 km deep · 91 km away
  30. 1.889 km S of False Pass, Alaska · 1854 days ago · 26 km deep · 87 km away
  31. 1.997 km S of False Pass, Alaska · 1852 days ago · 14 km deep · 75 km away
  32. 2.7232 km SSE of False Pass, Alaska · 1847 days ago · 10 km deep · 65 km away
  33. 2.090 km S of King Cove, Alaska · 1847 days ago · 28 km deep · 96 km away
  34. 1.9100 km S of False Pass, Alaska · 1847 days ago · 25 km deep · 81 km away
  35. 4.5147 km S of False Pass, Alaska · 1846 days ago · 12 km deep · 62 km away · felt by 1
  36. 1.9116 km SSW of False Pass, Alaska · 1846 days ago · 26 km deep · 94 km away
  37. 1.9132 km ESE of Akutan, Alaska · 1846 days ago · 25 km deep · 87 km away
  38. 1.799 km S of False Pass, Alaska · 1846 days ago · 42 km deep · 92 km away
  39. 2.6160 km ESE of Akutan, Alaska · 1845 days ago · 25 km deep · 66 km away
  40. 2.1174 km S of False Pass, Alaska · 1843 days ago · 22 km deep · 47 km away
  41. 2.2170 km S of False Pass, Alaska · 1843 days ago · 16 km deep · 55 km away
  42. 2.1170 km S of False Pass, Alaska · 1843 days ago · 15 km deep · 51 km away
  43. 3.0156 km S of False Pass, Alaska · 1843 days ago · 10 km deep · 58 km away
  44. 2.0166 km S of False Pass, Alaska · 1842 days ago · 20 km deep · 53 km away
  45. 2.0163 km S of False Pass, Alaska · 1842 days ago · 26 km deep · 54 km away
  46. 2.8161 km S of False Pass, Alaska · 1841 days ago · 29 km deep · 55 km away
  47. 1.8147 km S of False Pass, Alaska · 1841 days ago · 26 km deep · 62 km away
  48. 1.9Unimak Island region, Alaska · 1841 days ago · 17 km deep · 53 km away
  49. 3.3157 km S of False Pass, Alaska · 1841 days ago · 26 km deep · 59 km away
  50. 2.9161 km S of False Pass, Alaska · 1841 days ago · 22 km deep · 55 km away
  51. 1.8124 km SSW of False Pass, Alaska · 1841 days ago · 26 km deep · 93 km away
  52. 2.1169 km S of False Pass, Alaska · 1841 days ago · 25 km deep · 53 km away
  53. 2.0185 km S of False Pass, Alaska · 1841 days ago · 25 km deep · 51 km away
  54. 2.2171 km S of False Pass, Alaska · 1841 days ago · 16 km deep · 51 km away
  55. 2.0153 km S of False Pass, Alaska · 1841 days ago · 20 km deep · 50 km away
  56. 2.3166 km S of False Pass, Alaska · 1840 days ago · 20 km deep · 50 km away
  57. 3.2151 km S of False Pass, Alaska · 1839 days ago · 31 km deep · 59 km away
  58. 5.1154 km S of False Pass, Alaska · 1839 days ago · 10 km deep · 56 km away · felt by 5
  59. 2.2154 km S of False Pass, Alaska · 1839 days ago · 41 km deep · 62 km away
  60. 2.4166 km S of False Pass, Alaska · 1839 days ago · 18 km deep · 50 km away

The first 60 of 104.

Before

  1. 2.0162 km SSE of False Pass, Alaska · 1874 days ago · 26 km deep · 13 km away
  2. 3.4south of Alaska · 1874 days ago · 10 km deep · 13 km away
  3. 1.9148 km SSE of False Pass, Alaska · 1874 days ago · 9 km deep · 22 km away
  4. 3.7149 km SSE of False Pass, Alaska · 1875 days ago · 10 km deep · 19 km away
  5. 1.8110 km S of False Pass, Alaska · 1875 days ago · 19 km deep · 84 km away
  6. 2.7245 km SSE of False Pass, Alaska · 1876 days ago · 10 km deep · 78 km away
  7. 2.8151 km SSE of False Pass, Alaska · 1876 days ago · 23 km deep · 17 km away
  8. 3.3151 km SSE of False Pass, Alaska · 1876 days ago · 25 km deep · 19 km away
  9. 3.9146 km SSE of False Pass, Alaska · 1877 days ago · 10 km deep · 22 km away
  10. 3.1147 km SSE of False Pass, Alaska · 1877 days ago · 17 km deep · 21 km away
  11. 2.0118 km S of False Pass, Alaska · 1880 days ago · 41 km deep · 67 km away
  12. 1.671 km SSE of False Pass, Alaska · 1884 days ago · 19 km deep · 98 km away
  13. 1.978 km SSE of False Pass, Alaska · 1885 days ago · 73 km deep · 90 km away
  14. 2.573 km SSE of False Pass, Alaska · 1886 days ago · 45 km deep · 96 km away
  15. 2.5100 km S of False Pass, Alaska · 1887 days ago · 20 km deep · 70 km away
  16. 1.8111 km S of False Pass, Alaska · 1887 days ago · 41 km deep · 59 km away
  17. 2.4152 km SSE of False Pass, Alaska · 1888 days ago · 30 km deep · 16 km away
  18. 2.7158 km SSE of False Pass, Alaska · 1889 days ago · 37 km deep · 12 km away
  19. 4.4154 km SSE of False Pass, Alaska · 1889 days ago · 10 km deep · 14 km away · felt by 1
  20. 2.179 km SSE of False Pass, Alaska · 1892 days ago · 13 km deep · 90 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000f2ln. Read Wed, Sep 23, 2026, 5:08 AM UTC.