M1.9 earthquake 82 km W of Adak, Alaska
A magnitude 1.9 earthquake struck 82 km W of Adak, Alaska on Tue, Aug 3, 2021, 1:00 PM HADT (22:00 UTC), 7 km (4 mi) below the surface.
A larger quake followed: M4.8 128 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
- 1.9 (ml), micro
- Local time
- UTC
- 2021-08-03 22:00:53 UTC
- Depth
- 6.7 km (4.2 mi), shallow
- Epicenter
- 51.853° N, 177.837° 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
- 41
Nearby
Within 100 km, magnitude 1.5 and up: 164 in the 60 days after this one and 100 in the 30 days before it.
After
- 1.520 km SSW of Adak, Alaska · 1878 days ago · 74 km deep · 75 km away
- 1.6117 km WSW of Adak, Alaska · 1877 days ago · 45 km deep · 52 km away
- 1.677 km SW of Adak, Alaska · 1877 days ago · 29 km deep · 47 km away
- 3.4142 km WSW of Adak, Alaska · 1877 days ago · 32 km deep · 78 km away
- 1.9122 km WSW of Adak, Alaska · 1876 days ago · 25 km deep · 57 km away
- 2.0137 km SW of Adak, Alaska · 1876 days ago · 26 km deep · 87 km away
- 1.8131 km SW of Adak, Alaska · 1876 days ago · 26 km deep · 79 km away
- 2.068 km W of Adak, Alaska · 1875 days ago · 73 km deep · 18 km away
- 2.874 km SW of Adak, Alaska · 1875 days ago · 61 km deep · 59 km away
- 1.545 km SSW of Adak, Alaska · 1875 days ago · 63 km deep · 71 km away
- 1.889 km SW of Adak, Alaska · 1874 days ago · 33 km deep · 49 km away
- 1.646 km SW of Adak, Alaska · 1874 days ago · 48 km deep · 61 km away
- 3.6127 km WSW of Adak, Alaska · 1873 days ago · 35 km deep · 68 km away
- 1.684 km WSW of Adak, Alaska · 1873 days ago · 13 km deep · 41 km away
- 1.584 km WSW of Adak, Alaska · 1873 days ago · 24 km deep · 36 km away
- 1.582 km W of Adak, Alaska · 1872 days ago · 7 km deep · 2 km away
- 1.687 km WSW of Adak, Alaska · 1872 days ago · 13 km deep · 43 km away
- 1.682 km WSW of Adak, Alaska · 1872 days ago · 25 km deep · 35 km away
- 1.9Andreanof Islands, Aleutian Islands, Alaska · 1872 days ago · 26 km deep · 74 km away
- 1.549 km S of Adak, Alaska · 1871 days ago · 48 km deep · 88 km away
- 1.7100 km SW of Adak, Alaska · 1870 days ago · 26 km deep · 68 km away
- 1.535 km W of Adak, Alaska · 1870 days ago · 93 km deep · 48 km away
- 1.7111 km WSW of Adak, Alaska · 1869 days ago · 13 km deep · 47 km away
- 3.671 km SSW of Adak, Alaska · 1869 days ago · 35 km deep · 78 km away
- 2.1114 km WSW of Adak, Alaska · 1869 days ago · 26 km deep · 53 km away
- 2.078 km SW of Adak, Alaska · 1869 days ago · 24 km deep · 48 km away
- 1.7176 km WSW of Adak, Alaska · 1869 days ago · 17 km deep · 100 km away
- 1.8121 km WSW of Adak, Alaska · 1868 days ago · 8 km deep · 55 km away
- 1.644 km SW of Adak, Alaska · 1868 days ago · 28 km deep · 65 km away
- 1.5129 km WSW of Adak, Alaska · 1868 days ago · 7 km deep · 50 km away
- 3.142 km S of Adak, Alaska · 1868 days ago · 69 km deep · 98 km away
- 1.6115 km WSW of Adak, Alaska · 1868 days ago · 24 km deep · 55 km away
- 1.620 km SE of Adak, Alaska · 1868 days ago · 71 km deep · 97 km away
- 1.539 km SSW of Adak, Alaska · 1868 days ago · 12 km deep · 68 km away
- 1.7150 km W of Adak, Alaska · 1867 days ago · 4 km deep · 68 km away
- 1.783 km SW of Adak, Alaska · 1867 days ago · 30 km deep · 46 km away
- 1.6133 km WSW of Adak, Alaska · 1867 days ago · 7 km deep · 53 km away
- 1.667 km SSW of Adak, Alaska · 1867 days ago · 27 km deep · 80 km away
- 1.7136 km SW of Adak, Alaska · 1866 days ago · 26 km deep · 85 km away
- 1.7134 km SW of Adak, Alaska · 1866 days ago · 18 km deep · 88 km away
- 1.8134 km SW of Adak, Alaska · 1866 days ago · 26 km deep · 84 km away
- 1.7102 km SSW of Adak, Alaska · 1865 days ago · 47 km deep · 98 km away
- 1.793 km WSW of Adak, Alaska · 1865 days ago · 13 km deep · 37 km away
- 1.648 km SW of Adak, Alaska · 1865 days ago · 42 km deep · 65 km away
- 2.760 km SW of Adak, Alaska · 1864 days ago · 69 km deep · 53 km away
- 1.6132 km WSW of Adak, Alaska · 1864 days ago · 7 km deep · 53 km away
- 2.1128 km SW of Adak, Alaska · 1864 days ago · 26 km deep · 79 km away
- 2.3169 km W of Adak, Alaska · 1863 days ago · 243 km deep · 87 km away
- 1.514 km SSE of Adak, Alaska · 1863 days ago · 80 km deep · 91 km away
- 1.956 km W of Adak, Alaska · 1863 days ago · 92 km deep · 27 km away
- 1.6121 km W of Adak, Alaska · 1863 days ago · 92 km deep · 40 km away
- 2.5135 km WSW of Adak, Alaska · 1863 days ago · 35 km deep · 75 km away
- 3.6141 km WSW of Adak, Alaska · 1863 days ago · 31 km deep · 76 km away
- 1.8175 km WSW of Adak, Alaska · 1862 days ago · 72 km deep · 96 km away
- 1.654 km WNW of Adak, Alaska · 1862 days ago · 128 km deep · 38 km away
- 2.9113 km WSW of Adak, Alaska · 1862 days ago · 66 km deep · 45 km away
- 1.7120 km WSW of Adak, Alaska · 1862 days ago · 66 km deep · 47 km away
- 1.9156 km WSW of Adak, Alaska · 1861 days ago · 17 km deep · 94 km away
- 1.668 km SW of Adak, Alaska · 1860 days ago · 51 km deep · 54 km away
- 1.610 km SW of Adak, Alaska · 1860 days ago · 81 km deep · 76 km away
The first 60 of 164.
Before
- 1.694 km SW of Adak, Alaska · 1878 days ago · 23 km deep · 72 km away
- 1.6Andreanof Islands, Aleutian Islands, Alaska · 1878 days ago · 13 km deep · 50 km away
- 1.546 km WSW of Adak, Alaska · 1878 days ago · 75 km deep · 43 km away
- 2.1133 km W of Adak, Alaska · 1878 days ago · 139 km deep · 51 km away
- 1.582 km WSW of Adak, Alaska · 1879 days ago · 38 km deep · 42 km away
- 1.669 km WSW of Adak, Alaska · 1879 days ago · 71 km deep · 21 km away
- 1.560 km SSW of Adak, Alaska · 1879 days ago · 36 km deep · 73 km away
- 3.517 km SE of Adak, Alaska · 1879 days ago · 69 km deep · 97 km away
- 1.8159 km WSW of Adak, Alaska · 1879 days ago · 25 km deep · 92 km away
- 4.0123 km WSW of Adak, Alaska · 1880 days ago · 47 km deep · 63 km away
- 1.773 km W of Adak, Alaska · 1880 days ago · 73 km deep · 15 km away
- 1.749 km S of Adak, Alaska · 1880 days ago · 30 km deep · 100 km away
- 1.638 km SW of Adak, Alaska · 1881 days ago · 27 km deep · 61 km away
- 1.6117 km WSW of Adak, Alaska · 1881 days ago · 47 km deep · 51 km away
- 1.8Andreanof Islands, Aleutian Islands, Alaska · 1881 days ago · 18 km deep · 47 km away
- 1.568 km SSW of Adak, Alaska · 1882 days ago · 42 km deep · 76 km away
- 1.8148 km WSW of Adak, Alaska · 1882 days ago · 24 km deep · 88 km away
- 1.519 km WNW of Adak, Alaska · 1882 days ago · 86 km deep · 65 km away
- 1.767 km W of Adak, Alaska · 1883 days ago · 93 km deep · 16 km away
- 1.643 km S of Adak, Alaska · 1883 days ago · 26 km deep · 95 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak0219vxn9mm (also filed as av91329291). Read Thu, Sep 24, 2026, 2:15 PM UTC.