Alaska earthquakes

M2.1 earthquake 56 km SW of Unalaska, Alaska

A magnitude 2.1 earthquake struck 56 km SW of Unalaska, Alaska on Mon, Sep 27, 2021, 9:13 AM AKDT (17:13 UTC), 89 km (55 mi) below the surface.

A larger quake followed: M3.0 85 km SSW of Unalaska, Alaska. This one was a foreshock.

Unalaska forecastMore in Alaska

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
2021-09-27 17:13:06 UTC
Depth
89.1 km (55.4 mi), intermediate-depth
Epicenter
53.541° N, 167.185° 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
22

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 90 in the 60 days after this one and 34 in the 30 days before it.

After

  1. 3.085 km SSW of Unalaska, Alaska · 1822 days ago · 35 km deep · 52 km away
  2. 1.668 km SE of Unalaska, Alaska · 1822 days ago · 23 km deep · 95 km away
  3. 1.9107 km E of Nikolski, Alaska · 1820 days ago · 14 km deep · 69 km away
  4. 1.759 km SE of Unalaska, Alaska · 1818 days ago · 13 km deep · 93 km away
  5. 2.054 km SSW of Unalaska, Alaska · 1815 days ago · 71 km deep · 20 km away
  6. 1.566 km SE of Unalaska, Alaska · 1815 days ago · 24 km deep · 85 km away
  7. 2.984 km E of Nikolski, Alaska · 1813 days ago · 35 km deep · 86 km away
  8. 1.651 km S of Akutan, Alaska · 1813 days ago · 20 km deep · 95 km away
  9. 1.781 km SSE of Unalaska, Alaska · 1812 days ago · 26 km deep · 84 km away
  10. 4.177 km SSW of Unalaska, Alaska · 1810 days ago · 44 km deep · 43 km away
  11. 1.966 km S of Akutan, Alaska · 1810 days ago · 33 km deep · 98 km away
  12. 2.088 km S of Unalaska, Alaska · 1808 days ago · 41 km deep · 57 km away
  13. 3.1106 km W of Dutch Harbor, Alaska · 1808 days ago · 14 km deep · 81 km away
  14. 3.091 km SW of Unalaska, Alaska · 1808 days ago · 35 km deep · 36 km away
  15. 2.150 km ENE of Nikolski, Alaska · 1808 days ago · 65 km deep · 82 km away
  16. 3.782 km E of Nikolski, Alaska · 1806 days ago · 42 km deep · 84 km away
  17. 2.010 km ENE of Unalaska, Alaska · 1806 days ago · 92 km deep · 66 km away
  18. 2.082 km SW of Unalaska, Alaska · 1806 days ago · 73 km deep · 26 km away
  19. 1.8103 km ESE of Nikolski, Alaska · 1806 days ago · 26 km deep · 92 km away
  20. 2.882 km S of Unalaska, Alaska · 1805 days ago · 34 km deep · 53 km away
  21. 3.887 km SSW of Unalaska, Alaska · 1805 days ago · 35 km deep · 51 km away
  22. 2.890 km S of Unalaska, Alaska · 1804 days ago · 35 km deep · 59 km away
  23. 3.685 km WSW of Unalaska, Alaska · 1803 days ago · 113 km deep · 35 km away
  24. 1.746 km SW of Unalaska, Alaska · 1800 days ago · 18 km deep · 10 km away
  25. 2.026 km ESE of Unalaska, Alaska · 1800 days ago · 72 km deep · 74 km away
  26. 3.686 km ENE of Nikolski, Alaska · 1799 days ago · 76 km deep · 47 km away
  27. 1.787 km SSW of Unalaska, Alaska · 1799 days ago · 26 km deep · 48 km away
  28. 3.199 km E of Nikolski, Alaska · 1796 days ago · 35 km deep · 82 km away
  29. 3.0102 km E of Nikolski, Alaska · 1796 days ago · 35 km deep · 80 km away
  30. 2.9102 km E of Nikolski, Alaska · 1796 days ago · 35 km deep · 83 km away
  31. 1.719 km WSW of Dutch Harbor, Alaska · 1794 days ago · 6 km deep · 41 km away
  32. 2.270 km SE of Unalaska, Alaska · 1794 days ago · 23 km deep · 97 km away
  33. 2.014 km WSW of Dutch Harbor, Alaska · 1794 days ago · 7 km deep · 45 km away
  34. 1.513 km WSW of Dutch Harbor, Alaska · 1794 days ago · 10 km deep · 46 km away
  35. 1.513 km WSW of Dutch Harbor, Alaska · 1794 days ago · 10 km deep · 46 km away
  36. 2.590 km S of Unalaska, Alaska · 1791 days ago · 29 km deep · 65 km away
  37. 1.614 km WSW of Dutch Harbor, Alaska · 1791 days ago · 8 km deep · 45 km away
  38. 2.615 km WSW of Unalaska, Alaska · 1791 days ago · 13 km deep · 44 km away
  39. 1.614 km WSW of Dutch Harbor, Alaska · 1791 days ago · 9 km deep · 45 km away
  40. 1.613 km WSW of Dutch Harbor, Alaska · 1791 days ago · 8 km deep · 46 km away
  41. 1.9Fox Islands, Aleutian Islands, Alaska · 1790 days ago · 21 km deep · 46 km away
  42. 4.477 km S of Unalaska, Alaska · 1790 days ago · 10 km deep · 51 km away
  43. 3.172 km SSW of Unalaska, Alaska · 1790 days ago · 35 km deep · 43 km away
  44. 3.470 km SSW of Unalaska, Alaska · 1790 days ago · 30 km deep · 41 km away
  45. 2.074 km SSW of Unalaska, Alaska · 1790 days ago · 26 km deep · 45 km away
  46. 3.676 km S of Unalaska, Alaska · 1788 days ago · 35 km deep · 51 km away
  47. 1.890 km E of Nikolski, Alaska · 1788 days ago · 51 km deep · 70 km away
  48. 1.7108 km S of Unalaska, Alaska · 1788 days ago · 13 km deep · 80 km away
  49. 1.786 km SSW of Unalaska, Alaska · 1788 days ago · 26 km deep · 37 km away
  50. 2.077 km S of Unalaska, Alaska · 1788 days ago · 26 km deep · 49 km away
  51. 2.0127 km S of Unalaska, Alaska · 1788 days ago · 6 km deep · 96 km away
  52. 2.686 km ENE of Nikolski, Alaska · 1787 days ago · 64 km deep · 49 km away
  53. 1.774 km SSW of Unalaska, Alaska · 1786 days ago · 42 km deep · 45 km away
  54. 1.849 km SSE of Unalaska, Alaska · 1786 days ago · 48 km deep · 65 km away
  55. 1.964 km SSE of Unalaska, Alaska · 1786 days ago · 35 km deep · 64 km away
  56. 2.759 km SSW of Unalaska, Alaska · 1784 days ago · 29 km deep · 24 km away
  57. 1.917 km W of Akutan, Alaska · 1784 days ago · 17 km deep · 99 km away
  58. 1.847 km ESE of Unalaska, Alaska · 1784 days ago · 23 km deep · 88 km away
  59. 1.768 km SE of Unalaska, Alaska · 1783 days ago · 22 km deep · 93 km away
  60. 2.298 km S of Unalaska, Alaska · 1783 days ago · 26 km deep · 79 km away

The first 60 of 90.

Before

  1. 3.2109 km SSW of Unalaska, Alaska · 1822 days ago · 29 km deep · 73 km away
  2. 1.6Fox Islands, Aleutian Islands, Alaska · 1823 days ago · 23 km deep · 10 km away
  3. 1.670 km SE of Unalaska, Alaska · 1825 days ago · 25 km deep · 96 km away
  4. 1.720 km WSW of Dutch Harbor, Alaska · 1825 days ago · 5 km deep · 40 km away
  5. 1.820 km WSW of Dutch Harbor, Alaska · 1825 days ago · 5 km deep · 40 km away
  6. 1.818 km WSW of Dutch Harbor, Alaska · 1825 days ago · 7 km deep · 42 km away
  7. 2.684 km S of Unalaska, Alaska · 1826 days ago · 35 km deep · 54 km away
  8. 2.098 km E of Nikolski, Alaska · 1827 days ago · 26 km deep · 74 km away
  9. 3.457 km SSE of Unalaska, Alaska · 1827 days ago · 43 km deep · 75 km away
  10. 1.981 km SSE of Unalaska, Alaska · 1832 days ago · 25 km deep · 86 km away
  11. 1.651 km SW of Unalaska, Alaska · 1832 days ago · 15 km deep · 5 km away
  12. 1.652 km SE of Unalaska, Alaska · 1832 days ago · 25 km deep · 75 km away
  13. 1.720 km WSW of Dutch Harbor, Alaska · 1833 days ago · 6 km deep · 40 km away
  14. 1.621 km WSW of Dutch Harbor, Alaska · 1833 days ago · 7 km deep · 41 km away
  15. 1.521 km WSW of Dutch Harbor, Alaska · 1833 days ago · 7 km deep · 40 km away
  16. 1.620 km WSW of Dutch Harbor, Alaska · 1833 days ago · 7 km deep · 41 km away
  17. 1.8102 km E of Nikolski, Alaska · 1839 days ago · 25 km deep · 72 km away
  18. 1.578 km SW of Unalaska, Alaska · 1840 days ago · 31 km deep · 22 km away
  19. 1.552 km SW of Unalaska, Alaska · 1840 days ago · 14 km deep · 4 km away
  20. 1.645 km ESE of Unalaska, Alaska · 1840 days ago · 63 km deep · 87 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021cetavey. Read Wed, Sep 23, 2026, 4:35 PM UTC.