M2.0 earthquake 133 km W of Adak, Alaska
A magnitude 2.0 earthquake struck 133 km W of Adak, Alaska on Thu, Sep 23, 2021, 2:46 PM HADT (23:46 UTC), 132 km (82 mi) below the surface.
A larger quake followed: M3.1 121 km WSW 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
- 2.0 (ml), micro
- Local time
- UTC
- 2021-09-23 23:46:31 UTC
- Depth
- 132.1 km (82.1 mi), intermediate-depth
- Epicenter
- 52.017° N, 178.556° 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
- 35
Nearby
Within 100 km, magnitude 1.5 and up: 103 in the 60 days after this one and 55 in the 30 days before it.
After
- 3.1121 km WSW of Adak, Alaska · 1826 days ago · 78 km deep · 45 km away
- 1.692 km WSW of Adak, Alaska · 1826 days ago · 13 km deep · 78 km away
- 2.0211 km W of Adak, Alaska · 1824 days ago · 104 km deep · 82 km away
- 3.1190 km WSW of Adak, Alaska · 1824 days ago · 32 km deep · 99 km away
- 3.1179 km WSW of Adak, Alaska · 1823 days ago · 63 km deep · 78 km away
- 1.8133 km W of Adak, Alaska · 1823 days ago · 8 km deep · 36 km away
- 1.7Andreanof Islands, Aleutian Islands, Alaska · 1823 days ago · 21 km deep · 40 km away
- 2.5114 km W of Adak, Alaska · 1821 days ago · 137 km deep · 21 km away
- 3.1135 km WSW of Adak, Alaska · 1821 days ago · 30 km deep · 92 km away
- 2.1102 km WSW of Adak, Alaska · 1820 days ago · 8 km deep · 61 km away
- 2.3172 km WSW of Adak, Alaska · 1819 days ago · 21 km deep · 76 km away
- 1.7144 km WSW of Adak, Alaska · 1818 days ago · 24 km deep · 83 km away
- 2.7116 km WSW of Adak, Alaska · 1818 days ago · 13 km deep · 63 km away
- 3.9116 km WSW of Adak, Alaska · 1817 days ago · 35 km deep · 86 km away
- 1.5174 km WSW of Adak, Alaska · 1817 days ago · 8 km deep · 72 km away
- 1.9175 km WSW of Adak, Alaska · 1817 days ago · 20 km deep · 99 km away
- 1.8133 km SW of Adak, Alaska · 1816 days ago · 25 km deep · 92 km away
- 1.9132 km WSW of Adak, Alaska · 1815 days ago · 7 km deep · 45 km away
- 2.5134 km WSW of Adak, Alaska · 1814 days ago · 21 km deep · 45 km away
- 1.6106 km SW of Adak, Alaska · 1813 days ago · 23 km deep · 99 km away
- 1.8121 km SW of Adak, Alaska · 1813 days ago · 21 km deep · 98 km away
- 2.5105 km WSW of Adak, Alaska · 1813 days ago · 48 km deep · 73 km away
- 2.9132 km WSW of Adak, Alaska · 1812 days ago · 10 km deep · 46 km away
- 1.981 km WSW of Adak, Alaska · 1812 days ago · 30 km deep · 81 km away
- 1.7163 km WSW of Adak, Alaska · 1812 days ago · 16 km deep · 57 km away
- 1.745 km W of Adak, Alaska · 1811 days ago · 92 km deep · 90 km away
- 2.6128 km WSW of Adak, Alaska · 1810 days ago · 19 km deep · 59 km away
- 2.6154 km WSW of Adak, Alaska · 1810 days ago · 21 km deep · 58 km away
- 1.782 km W of Adak, Alaska · 1810 days ago · 10 km deep · 53 km away
- 2.5182 km WSW of Adak, Alaska · 1809 days ago · 29 km deep · 89 km away
- 3.0116 km WSW of Adak, Alaska · 1809 days ago · 34 km deep · 70 km away
- 1.769 km WSW of Adak, Alaska · 1809 days ago · 25 km deep · 83 km away
- 1.990 km SW of Adak, Alaska · 1807 days ago · 16 km deep · 90 km away
- 3.1216 km W of Adak, Alaska · 1806 days ago · 110 km deep · 87 km away
- 2.7157 km WSW of Adak, Alaska · 1806 days ago · 95 km deep · 51 km away
- 2.9139 km W of Adak, Alaska · 1805 days ago · 24 km deep · 17 km away
- 3.2181 km WSW of Adak, Alaska · 1804 days ago · 30 km deep · 80 km away
- 3.1Andreanof Islands, Aleutian Islands, Alaska · 1798 days ago · 146 km deep · 18 km away
- 1.7117 km WSW of Adak, Alaska · 1797 days ago · 29 km deep · 72 km away
- 1.8123 km WSW of Adak, Alaska · 1797 days ago · 17 km deep · 74 km away
- 2.6223 km W of Adak, Alaska · 1797 days ago · 84 km deep · 97 km away
- 2.072 km W of Adak, Alaska · 1795 days ago · 77 km deep · 67 km away
- 1.9172 km WSW of Adak, Alaska · 1795 days ago · 22 km deep · 77 km away
- 1.8126 km WSW of Adak, Alaska · 1795 days ago · 11 km deep · 48 km away
- 2.0108 km W of Adak, Alaska · 1795 days ago · 83 km deep · 29 km away
- 1.7127 km WSW of Adak, Alaska · 1795 days ago · 7 km deep · 52 km away
- 1.760 km W of Adak, Alaska · 1794 days ago · 89 km deep · 75 km away
- 3.2141 km WSW of Adak, Alaska · 1793 days ago · 31 km deep · 86 km away
- 3.6204 km WSW of Adak, Alaska · 1793 days ago · 35 km deep · 99 km away
- 1.7100 km WSW of Adak, Alaska · 1792 days ago · 63 km deep · 66 km away
- 3.6Andreanof Islands, Aleutian Islands, Alaska · 1792 days ago · 82 km deep · 48 km away
- 1.972 km WSW of Adak, Alaska · 1791 days ago · 66 km deep · 76 km away
- 3.8119 km WSW of Adak, Alaska · 1791 days ago · 88 km deep · 54 km away
- 1.8147 km WSW of Adak, Alaska · 1790 days ago · 29 km deep · 86 km away
- 2.0211 km W of Adak, Alaska · 1790 days ago · 112 km deep · 83 km away
- 2.9226 km W of Adak, Alaska · 1788 days ago · 102 km deep · 98 km away
- 1.6Andreanof Islands, Aleutian Islands, Alaska · 1788 days ago · 8 km deep · 54 km away
- 2.076 km WSW of Adak, Alaska · 1785 days ago · 26 km deep · 89 km away
- 3.6108 km WSW of Adak, Alaska · 1785 days ago · 34 km deep · 82 km away
- 1.684 km W of Adak, Alaska · 1785 days ago · 13 km deep · 51 km away
The first 60 of 103.
Before
- 1.788 km WSW of Adak, Alaska · 1827 days ago · 60 km deep · 76 km away
- 1.6165 km WSW of Adak, Alaska · 1827 days ago · 24 km deep · 94 km away
- 1.8129 km WSW of Adak, Alaska · 1827 days ago · 11 km deep · 53 km away
- 1.9129 km W of Adak, Alaska · 1827 days ago · 13 km deep · 36 km away
- 1.896 km SW of Adak, Alaska · 1828 days ago · 33 km deep · 87 km away
- 2.0168 km WSW of Adak, Alaska · 1828 days ago · 26 km deep · 76 km away
- 1.872 km WSW of Adak, Alaska · 1829 days ago · 14 km deep · 86 km away
- 1.9100 km WSW of Adak, Alaska · 1829 days ago · 58 km deep · 78 km away
- 2.1135 km W of Adak, Alaska · 1830 days ago · 133 km deep · 3 km away
- 1.6124 km WSW of Adak, Alaska · 1830 days ago · 15 km deep · 67 km away
- 1.688 km SW of Adak, Alaska · 1830 days ago · 37 km deep · 96 km away
- 1.5114 km WSW of Adak, Alaska · 1831 days ago · 14 km deep · 63 km away
- 2.0114 km WSW of Adak, Alaska · 1831 days ago · 48 km deep · 80 km away
- 2.068 km SW of Adak, Alaska · 1833 days ago · 35 km deep · 94 km away
- 2.7215 km W of Adak, Alaska · 1834 days ago · 73 km deep · 93 km away
- 2.1136 km W of Adak, AK · 1834 days ago · 17 km deep · 35 km away
- 2.0133 km W of Adak, Alaska · 1834 days ago · 15 km deep · 35 km away
- 1.6194 km WSW of Adak, Alaska · 1837 days ago · 20 km deep · 92 km away
- 3.692 km SW of Adak, Alaska · 1837 days ago · 35 km deep · 94 km away
- 1.782 km W of Adak, Alaska · 1837 days ago · 12 km deep · 54 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak021c8ax7o1. Read Thu, Sep 24, 2026, 8:59 AM UTC.