M1.5 earthquake 20 km SSW of Adak, Alaska
A magnitude 1.5 earthquake struck 20 km SSW of Adak, Alaska on Tue, Aug 3, 2021, 2:43 PM HADT (23:43 UTC), 74 km (46 mi) below the surface.
A larger quake followed: M4.7 49 km NE 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
- 1.5 (ml), micro
- Local time
- UTC
- 2021-08-03 23:43:50 UTC
- Depth
- 74.2 km (46.1 mi), intermediate-depth
- Epicenter
- 51.707° N, 176.768° 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
- 24
Nearby
Within 100 km, magnitude 1.5 and up: 172 in the 60 days after this one and 145 in the 30 days before it.
After
- 1.559 km SE of Adak, Alaska · 1878 days ago · 23 km deep · 54 km away
- 1.677 km SW of Adak, Alaska · 1877 days ago · 29 km deep · 59 km away
- 1.765 km SE of Adak, Alaska · 1877 days ago · 24 km deep · 63 km away
- 3.672 km SE of Adak, Alaska · 1876 days ago · 30 km deep · 68 km away
- 1.565 km SSE of Adak, Alaska · 1876 days ago · 20 km deep · 57 km away
- 1.977 km NE of Adak, Alaska · 1876 days ago · 138 km deep · 98 km away
- 2.068 km W of Adak, Alaska · 1875 days ago · 73 km deep · 59 km away
- 2.874 km SW of Adak, Alaska · 1875 days ago · 61 km deep · 56 km away
- 1.969 km SE of Adak, Alaska · 1875 days ago · 39 km deep · 65 km away
- 1.545 km SSW of Adak, Alaska · 1875 days ago · 63 km deep · 25 km away
- 3.072 km ESE of Adak, Alaska · 1874 days ago · 62 km deep · 77 km away
- 1.889 km SW of Adak, Alaska · 1874 days ago · 33 km deep · 72 km away
- 1.646 km SW of Adak, Alaska · 1874 days ago · 48 km deep · 27 km away
- 1.684 km WSW of Adak, Alaska · 1873 days ago · 13 km deep · 68 km away
- 1.584 km WSW of Adak, Alaska · 1873 days ago · 24 km deep · 69 km away
- 1.6101 km SSE of Adak, Alaska · 1873 days ago · 24 km deep · 91 km away
- 1.582 km W of Adak, Alaska · 1872 days ago · 7 km deep · 74 km away
- 1.687 km WSW of Adak, Alaska · 1872 days ago · 13 km deep · 70 km away
- 1.682 km WSW of Adak, Alaska · 1872 days ago · 25 km deep · 67 km away
- 1.9Andreanof Islands, Aleutian Islands, Alaska · 1872 days ago · 26 km deep · 40 km away
- 1.774 km SSE of Adak, Alaska · 1872 days ago · 25 km deep · 64 km away
- 3.054 km SE of Adak, Alaska · 1871 days ago · 35 km deep · 49 km away
- 2.744 km SSE of Adak, Alaska · 1871 days ago · 35 km deep · 36 km away
- 1.549 km S of Adak, Alaska · 1871 days ago · 48 km deep · 30 km away
- 1.7100 km SW of Adak, Alaska · 1870 days ago · 26 km deep · 81 km away
- 1.535 km W of Adak, Alaska · 1870 days ago · 93 km deep · 33 km away
- 3.764 km SE of Adak, Alaska · 1870 days ago · 35 km deep · 61 km away
- 1.7111 km WSW of Adak, Alaska · 1869 days ago · 13 km deep · 96 km away
- 3.671 km SSW of Adak, Alaska · 1869 days ago · 35 km deep · 50 km away
- 2.1114 km WSW of Adak, Alaska · 1869 days ago · 26 km deep · 99 km away
- 2.078 km SW of Adak, Alaska · 1869 days ago · 24 km deep · 60 km away
- 1.741 km ENE of Adak, Alaska · 1869 days ago · 6 km deep · 60 km away
- 1.574 km E of Adak, Alaska · 1869 days ago · 22 km deep · 83 km away
- 1.644 km SW of Adak, Alaska · 1868 days ago · 28 km deep · 24 km away
- 3.142 km S of Adak, Alaska · 1868 days ago · 69 km deep · 29 km away
- 1.6115 km WSW of Adak, Alaska · 1868 days ago · 24 km deep · 100 km away
- 2.9Andreanof Islands, Aleutian Islands, Alaska · 1868 days ago · 33 km deep · 40 km away
- 1.620 km SE of Adak, Alaska · 1868 days ago · 71 km deep · 23 km away
- 1.539 km SSW of Adak, Alaska · 1868 days ago · 12 km deep · 19 km away
- 1.560 km SE of Adak, Alaska · 1868 days ago · 22 km deep · 55 km away
- 1.783 km SW of Adak, Alaska · 1867 days ago · 30 km deep · 67 km away
- 1.667 km SSW of Adak, Alaska · 1867 days ago · 27 km deep · 47 km away
- 2.6101 km SSW of Adak, Alaska · 1866 days ago · 24 km deep · 81 km away
- 1.7102 km SSW of Adak, Alaska · 1865 days ago · 47 km deep · 81 km away
- 3.183 km E of Adak, Alaska · 1865 days ago · 73 km deep · 93 km away
- 1.793 km WSW of Adak, Alaska · 1865 days ago · 13 km deep · 79 km away
- 1.648 km SW of Adak, Alaska · 1865 days ago · 42 km deep · 28 km away
- 2.760 km SW of Adak, Alaska · 1864 days ago · 69 km deep · 42 km away
- 1.514 km SSE of Adak, Alaska · 1863 days ago · 80 km deep · 18 km away
- 1.956 km W of Adak, Alaska · 1863 days ago · 92 km deep · 49 km away
- 1.572 km SSE of Adak, Alaska · 1862 days ago · 21 km deep · 59 km away
- 1.654 km WNW of Adak, Alaska · 1862 days ago · 128 km deep · 57 km away
- 2.053 km ENE of Adak, Alaska · 1862 days ago · 146 km deep · 70 km away
- 2.9113 km WSW of Adak, Alaska · 1862 days ago · 66 km deep · 99 km away
- 3.464 km SE of Adak, Alaska · 1862 days ago · 35 km deep · 62 km away
- 1.668 km SW of Adak, Alaska · 1860 days ago · 51 km deep · 50 km away
- 1.610 km SW of Adak, Alaska · 1860 days ago · 81 km deep · 10 km away
- 3.064 km SSW of Adak, Alaska · 1860 days ago · 35 km deep · 44 km away
- 2.687 km S of Adak, Alaska · 1860 days ago · 35 km deep · 67 km away
- 1.915 km NE of Adak, Alaska · 1859 days ago · 151 km deep · 36 km away
The first 60 of 172.
Before
- 1.982 km W of Adak, Alaska · 1878 days ago · 7 km deep · 75 km away
- 1.694 km SW of Adak, Alaska · 1878 days ago · 23 km deep · 75 km away
- 1.546 km WSW of Adak, Alaska · 1878 days ago · 75 km deep · 34 km away
- 1.582 km WSW of Adak, Alaska · 1879 days ago · 38 km deep · 66 km away
- 1.669 km WSW of Adak, Alaska · 1879 days ago · 71 km deep · 58 km away
- 1.560 km SSW of Adak, Alaska · 1879 days ago · 36 km deep · 39 km away
- 3.244 km SSE of Adak, Alaska · 1879 days ago · 44 km deep · 34 km away
- 3.517 km SE of Adak, Alaska · 1879 days ago · 69 km deep · 25 km away
- 1.658 km SE of Adak, Alaska · 1880 days ago · 26 km deep · 53 km away
- 1.773 km W of Adak, Alaska · 1880 days ago · 73 km deep · 63 km away
- 1.749 km S of Adak, Alaska · 1880 days ago · 30 km deep · 34 km away
- 1.578 km SSE of Adak, Alaska · 1880 days ago · 19 km deep · 65 km away
- 1.897 km S of Adak, Alaska · 1880 days ago · 26 km deep · 79 km away
- 1.638 km SW of Adak, Alaska · 1881 days ago · 27 km deep · 20 km away
- 3.054 km ESE of Adak, Alaska · 1881 days ago · 42 km deep · 58 km away
- 1.8Andreanof Islands, Aleutian Islands, Alaska · 1881 days ago · 18 km deep · 67 km away
- 2.066 km NE of Adak, Alaska · 1881 days ago · 217 km deep · 87 km away
- 1.666 km SE of Adak, Alaska · 1882 days ago · 26 km deep · 64 km away
- 1.9Andreanof Islands, Aleutian Islands, Alaska · 1882 days ago · 29 km deep · 55 km away
- 1.568 km SSW of Adak, Alaska · 1882 days ago · 42 km deep · 48 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak0219vyhwug. Read Thu, Sep 24, 2026, 4:30 PM UTC.