M2.4 earthquake 69 km WNW of Atka, Alaska
A magnitude 2.4 earthquake struck 69 km WNW of Atka, Alaska on Fri, Oct 22, 2021, 7:00 PM HADT (04:00 UTC), 120 km (74 mi) below the surface.
A larger quake followed: M3.5 63 km ESE 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
- 2.4 (ml), micro
- Local time
- UTC
- 2021-10-23 04:00:13 UTC
- Depth
- 119.6 km (74.3 mi), intermediate-depth
- Epicenter
- 52.384° N, 175.169° 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
- 13
Nearby
Within 100 km, magnitude 1.5 and up: 72 in the 60 days after this one and 24 in the 30 days before it.
After
- 2.081 km ENE of Adak, Alaska · 1796 days ago · 115 km deep · 43 km away
- 3.563 km ESE of Adak, Alaska · 1795 days ago · 35 km deep · 99 km away
- 1.889 km SW of Atka, Alaska · 1794 days ago · 26 km deep · 92 km away
- 2.929 km SSW of Atka, Alaska · 1794 days ago · 10 km deep · 77 km away
- 1.935 km E of Adak, Alaska · 1794 days ago · 125 km deep · 88 km away
- 1.833 km SSW of Atka, Alaska · 1794 days ago · 71 km deep · 72 km away
- 2.974 km W of Atka, Alaska · 1793 days ago · 252 km deep · 31 km away
- 1.982 km ESE of Adak, Alaska · 1792 days ago · 48 km deep · 90 km away
- 3.747 km NE of Adak, Alaska · 1792 days ago · 188 km deep · 69 km away
- 2.657 km ESE of Adak, Alaska · 1792 days ago · 68 km deep · 91 km away
- 1.985 km ESE of Adak, Alaska · 1792 days ago · 44 km deep · 84 km away
- 2.062 km E of Adak, Alaska · 1791 days ago · 74 km deep · 62 km away
- 1.881 km ESE of Adak, Alaska · 1791 days ago · 55 km deep · 83 km away
- 2.678 km E of Adak, Alaska · 1791 days ago · 75 km deep · 62 km away
- 1.634 km E of Adak, Alaska · 1790 days ago · 9 km deep · 84 km away
- 2.345 km S of Atka, Alaska · 1789 days ago · 223 km deep · 91 km away
- 1.627 km SW of Atka, Alaska · 1789 days ago · 67 km deep · 65 km away
- 1.627 km SW of Atka, Alaska · 1789 days ago · 67 km deep · 65 km away
- 1.980 km SSW of Atka, Alaska · 1789 days ago · 29 km deep · 99 km away
- 3.343 km ENE of Adak, Alaska · 1788 days ago · 180 km deep · 71 km away
- 2.675 km SSW of Atka, Alaska · 1785 days ago · 35 km deep · 89 km away
- 2.060 km ESE of Adak, Alaska · 1784 days ago · 39 km deep · 97 km away
- 2.5103 km ESE of Adak, Alaska · 1784 days ago · 35 km deep · 98 km away
- 1.872 km SW of Atka, Alaska · 1784 days ago · 17 km deep · 81 km away
- 2.061 km SW of Atka, Alaska · 1781 days ago · 63 km deep · 67 km away
- 2.451 km NE of Adak, Alaska · 1780 days ago · 172 km deep · 64 km away
- 2.998 km NNE of Adak, Alaska · 1779 days ago · 226 km deep · 72 km away
- 2.050 km E of Adak, Alaska · 1778 days ago · 81 km deep · 82 km away
- 2.059 km SSW of Atka, Alaska · 1777 days ago · 17 km deep · 86 km away
- 1.757 km WSW of Atka, Alaska · 1776 days ago · 75 km deep · 40 km away
- 2.276 km NE of Adak, Alaska · 1776 days ago · 214 km deep · 40 km away
- 2.034 km WSW of Atka, Alaska · 1776 days ago · 88 km deep · 47 km away
- 1.976 km ESE of Adak, Alaska · 1776 days ago · 57 km deep · 81 km away
- 4.058 km NNW of Atka, Alaska · 1774 days ago · 211 km deep · 62 km away
- 1.771 km SW of Atka, Alaska · 1774 days ago · 35 km deep · 75 km away
- 1.773 km WSW of Atka, Alaska · 1773 days ago · 74 km deep · 44 km away
- 2.949 km SW of Atka, Alaska · 1773 days ago · 72 km deep · 70 km away
- 1.657 km WSW of Atka, Alaska · 1772 days ago · 70 km deep · 50 km away
- 2.087 km SW of Atka, Alaska · 1772 days ago · 15 km deep · 92 km away
- 1.817 km SSW of Atka, Alaska · 1771 days ago · 76 km deep · 72 km away
- 1.596 km ESE of Adak, Alaska · 1771 days ago · 22 km deep · 93 km away
- 2.273 km ENE of Adak, Alaska · 1770 days ago · 170 km deep · 42 km away
- 1.951 km SSW of Atka, Alaska · 1770 days ago · 23 km deep · 78 km away
- 1.967 km ENE of Adak, Alaska · 1770 days ago · 146 km deep · 50 km away
- 1.824 km S of Atka, Alaska · 1770 days ago · 61 km deep · 84 km away
- 1.750 km ESE of Adak, Alaska · 1770 days ago · 65 km deep · 89 km away
- 1.958 km E of Adak, Alaska · 1770 days ago · 81 km deep · 68 km away
- 1.789 km SW of Atka, Alaska · 1769 days ago · 31 km deep · 86 km away
- 1.992 km SW of Atka, Alaska · 1769 days ago · 34 km deep · 92 km away
- 1.915 km SSW of Atka, Alaska · 1767 days ago · 85 km deep · 71 km away
- 2.749 km NE of Adak, Alaska · 1764 days ago · 151 km deep · 68 km away
- 2.068 km ENE of Adak, Alaska · 1764 days ago · 144 km deep · 50 km away
- 3.133 km NNE of Adak, Alaska · 1763 days ago · 222 km deep · 93 km away
- 1.878 km E of Adak, Alaska · 1762 days ago · 30 km deep · 70 km away
- 3.365 km NE of Adak, Alaska · 1761 days ago · 191 km deep · 54 km away
- 2.536 km E of Adak, Alaska · 1761 days ago · 130 km deep · 81 km away
- 3.346 km S of Atka, Alaska · 1761 days ago · 56 km deep · 97 km away
- 2.646 km SW of Atka, Alaska · 1761 days ago · 14 km deep · 57 km away
- 1.951 km ENE of Adak, Alaska · 1759 days ago · 89 km deep · 67 km away
- 1.797 km ESE of Adak, Alaska · 1758 days ago · 13 km deep · 96 km away
The first 60 of 72.
Before
- 3.693 km ESE of Adak, Alaska · 1800 days ago · 24 km deep · 80 km away
- 3.050 km ESE of Adak, Alaska · 1800 days ago · 3 km deep · 90 km away · felt by 1
- 2.885 km ESE of Adak, Alaska · 1804 days ago · 52 km deep · 79 km away
- 1.822 km SW of Atka, Alaska · 1805 days ago · 72 km deep · 58 km away
- 1.959 km WNW of Atka, Alaska · 1805 days ago · 108 km deep · 14 km away
- 1.890 km ESE of Adak, Alaska · 1805 days ago · 54 km deep · 82 km away
- 3.134 km WSW of Atka, Alaska · 1806 days ago · 138 km deep · 54 km away
- 2.165 km E of Adak, Alaska · 1809 days ago · 29 km deep · 73 km away
- 3.127 km SW of Atka, Alaska · 1810 days ago · 35 km deep · 64 km away
- 3.863 km WSW of Atka, Alaska · 1810 days ago · 81 km deep · 54 km away
- 3.884 km NE of Adak, Alaska · 1810 days ago · 182 km deep · 40 km away
- 1.966 km E of Adak, Alaska · 1811 days ago · 62 km deep · 67 km away
- 3.633 km SSW of Atka, Alaska · 1814 days ago · 75 km deep · 80 km away
- 1.975 km E of Adak, Alaska · 1815 days ago · 29 km deep · 68 km away
- 1.841 km NE of Adak, Alaska · 1815 days ago · 3 km deep · 74 km away
- 1.657 km ENE of Adak, Alaska · 1818 days ago · 86 km deep · 62 km away
- 4.749 km NE of Adak, Alaska · 1818 days ago · 129 km deep · 69 km away
- 3.837 km ENE of Adak, Alaska · 1819 days ago · 128 km deep · 79 km away
- 1.876 km ESE of Adak, Alaska · 1824 days ago · 20 km deep · 96 km away
- 2.951 km SSW of Atka, Alaska · 1824 days ago · 35 km deep · 84 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak021dll7stm. Read Thu, Sep 24, 2026, 6:55 AM UTC.