M2.1 earthquake 33 km ESE of Adak, Alaska
A magnitude 2.1 earthquake struck 33 km ESE of Adak, Alaska on Sun, Oct 24, 2021, 3:51 PM HADT (00:51 UTC), 62 km (38 mi) below the surface.
A larger quake followed: M4.0 29 km SSW of Adak, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.1 (ml), micro
- Local time
- UTC
- 2021-10-25 00:51:29 UTC
- Depth
- 61.5 km (38.2 mi), shallow
- Epicenter
- 51.720° N, 176.214° 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
- 19
Nearby
Within 100 km, magnitude 1.5 and up: 143 in the 60 days after this one and 38 in the 30 days before it.
After
- 3.563 km ESE of Adak, Alaska · 1798 days ago · 35 km deep · 29 km away
- 1.889 km SW of Atka, Alaska · 1798 days ago · 26 km deep · 85 km away
- 1.658 km SE of Adak, Alaska · 1798 days ago · 25 km deep · 26 km away
- 1.935 km E of Adak, Alaska · 1798 days ago · 125 km deep · 15 km away
- 1.760 km W of Adak, Alaska · 1798 days ago · 89 km deep · 90 km away
- 1.843 km SSE of Adak, Alaska · 1797 days ago · 34 km deep · 22 km away
- 2.759 km SSE of Adak, Alaska · 1797 days ago · 34 km deep · 34 km away
- 2.974 km W of Atka, Alaska · 1797 days ago · 252 km deep · 77 km away
- 1.843 km SSE of Adak, Alaska · 1797 days ago · 37 km deep · 30 km away
- 1.740 km SSE of Adak, Alaska · 1796 days ago · 36 km deep · 22 km away
- 1.982 km ESE of Adak, Alaska · 1796 days ago · 48 km deep · 49 km away
- 3.747 km NE of Adak, Alaska · 1796 days ago · 188 km deep · 47 km away
- 2.657 km ESE of Adak, Alaska · 1796 days ago · 68 km deep · 25 km away
- 1.985 km ESE of Adak, Alaska · 1796 days ago · 44 km deep · 53 km away
- 2.062 km E of Adak, Alaska · 1795 days ago · 74 km deep · 42 km away
- 2.073 km SE of Adak, Alaska · 1795 days ago · 23 km deep · 40 km away
- 1.972 km WSW of Adak, Alaska · 1795 days ago · 66 km deep · 97 km away
- 1.752 km SW of Adak, Alaska · 1795 days ago · 38 km deep · 64 km away
- 1.881 km ESE of Adak, Alaska · 1795 days ago · 55 km deep · 50 km away
- 2.949 km SSW of Adak, Alaska · 1795 days ago · 50 km deep · 51 km away
- 2.678 km E of Adak, Alaska · 1794 days ago · 75 km deep · 52 km away
- 1.634 km E of Adak, Alaska · 1794 days ago · 9 km deep · 22 km away
- 3.775 km SW of Adak, Alaska · 1793 days ago · 35 km deep · 88 km away
- 3.343 km ENE of Adak, Alaska · 1791 days ago · 180 km deep · 39 km away
- 2.228 km NNW of Adak, Alaska · 1791 days ago · 110 km deep · 59 km away
- 2.087 km S of Adak, Alaska · 1790 days ago · 16 km deep · 71 km away
- 2.076 km WSW of Adak, Alaska · 1789 days ago · 26 km deep · 96 km away
- 2.675 km SSW of Atka, Alaska · 1789 days ago · 35 km deep · 100 km away
- 2.060 km ESE of Adak, Alaska · 1788 days ago · 39 km deep · 26 km away
- 2.5103 km ESE of Adak, Alaska · 1788 days ago · 35 km deep · 70 km away
- 1.560 km SSW of Adak, Alaska · 1788 days ago · 32 km deep · 67 km away
- 1.872 km SW of Atka, Alaska · 1788 days ago · 17 km deep · 94 km away
- 3.153 km SSE of Adak, Alaska · 1788 days ago · 35 km deep · 28 km away
- 1.665 km SSE of Adak, Alaska · 1787 days ago · 25 km deep · 43 km away
- 3.128 km ESE of Adak, Alaska · 1787 days ago · 71 km deep · 5 km away
- 1.853 km S of Adak, Alaska · 1785 days ago · 26 km deep · 45 km away
- 1.946 km SSE of Adak, Alaska · 1785 days ago · 40 km deep · 34 km away
- 1.862 km W of Adak, Alaska · 1785 days ago · 87 km deep · 92 km away
- 1.757 km SSE of Adak, Alaska · 1784 days ago · 16 km deep · 39 km away
- 2.061 km SW of Atka, Alaska · 1784 days ago · 63 km deep · 95 km away
- 1.655 km SSE of Adak, Alaska · 1784 days ago · 26 km deep · 30 km away
- 2.451 km NE of Adak, Alaska · 1784 days ago · 172 km deep · 49 km away
- 1.623 km SSW of Adak, Alaska · 1784 days ago · 62 km deep · 37 km away
- 1.575 km SE of Adak, Alaska · 1784 days ago · 23 km deep · 42 km away
- 1.768 km S of Adak, Alaska · 1784 days ago · 22 km deep · 60 km away
- 2.879 km WSW of Adak, Alaska · 1782 days ago · 35 km deep · 100 km away
- 1.861 km SE of Adak, Alaska · 1782 days ago · 5 km deep · 31 km away
- 1.770 km SE of Adak, Alaska · 1782 days ago · 22 km deep · 37 km away
- 2.050 km E of Adak, Alaska · 1782 days ago · 81 km deep · 23 km away
- 1.841 km W of Adak, Alaska · 1781 days ago · 90 km deep · 71 km away
- 2.965 km SE of Adak, Alaska · 1781 days ago · 35 km deep · 36 km away
- 1.866 km SSW of Adak, Alaska · 1780 days ago · 31 km deep · 69 km away
- 1.757 km WSW of Atka, Alaska · 1780 days ago · 75 km deep · 91 km away
- 2.276 km NE of Adak, Alaska · 1780 days ago · 214 km deep · 71 km away
- 1.976 km ESE of Adak, Alaska · 1780 days ago · 57 km deep · 45 km away
- 1.745 km SW of Adak, Alaska · 1779 days ago · 47 km deep · 63 km away
- 1.851 km SSE of Adak, Alaska · 1779 days ago · 33 km deep · 31 km away
- 1.763 km SE of Adak, Alaska · 1778 days ago · 21 km deep · 33 km away
- 1.771 km SW of Atka, Alaska · 1778 days ago · 35 km deep · 90 km away
- 1.773 km WSW of Atka, Alaska · 1777 days ago · 74 km deep · 74 km away
The first 60 of 143.
Before
- 2.081 km ENE of Adak, Alaska · 1800 days ago · 115 km deep · 62 km away
- 1.854 km SW of Adak, Alaska · 1801 days ago · 43 km deep · 66 km away
- 3.693 km ESE of Adak, Alaska · 1803 days ago · 24 km deep · 62 km away
- 3.050 km ESE of Adak, Alaska · 1803 days ago · 3 km deep · 19 km away · felt by 1
- 2.885 km ESE of Adak, Alaska · 1808 days ago · 52 km deep · 54 km away
- 1.652 km SW of Adak, Alaska · 1808 days ago · 39 km deep · 65 km away
- 2.560 km SE of Adak, Alaska · 1808 days ago · 36 km deep · 33 km away
- 1.890 km ESE of Adak, Alaska · 1809 days ago · 54 km deep · 59 km away
- 1.646 km S of Adak, Alaska · 1809 days ago · 30 km deep · 35 km away
- 3.144 km SSE of Adak, Alaska · 1810 days ago · 33 km deep · 21 km away
- 2.855 km S of Adak, Alaska · 1811 days ago · 32 km deep · 53 km away
- 3.746 km S of Adak, Alaska · 1811 days ago · 35 km deep · 42 km away
- 2.961 km SSW of Adak, Alaska · 1813 days ago · 51 km deep · 63 km away
- 1.769 km WSW of Adak, Alaska · 1813 days ago · 25 km deep · 92 km away
- 2.165 km E of Adak, Alaska · 1813 days ago · 29 km deep · 37 km away
- 1.9Andreanof Islands, Aleutian Islands, Alaska · 1814 days ago · 23 km deep · 30 km away
- 3.863 km WSW of Atka, Alaska · 1814 days ago · 81 km deep · 86 km away
- 3.884 km NE of Adak, Alaska · 1814 days ago · 182 km deep · 82 km away
- 1.745 km W of Adak, Alaska · 1815 days ago · 92 km deep · 74 km away
- 1.966 km E of Adak, Alaska · 1815 days ago · 62 km deep · 41 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak021dougezj. Read Mon, Sep 28, 2026, 2:57 AM UTC.