M1.6 earthquake 58 km SE of Adak, Alaska
A magnitude 1.6 earthquake struck 58 km SE of Adak, Alaska on Sun, Aug 1, 2021, 7:39 AM HADT (16:39 UTC), 26 km (16 mi) below the surface.
A larger quake followed: M3.9 111 km SSW of Atka, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.6 (ml), micro
- Local time
- UTC
- 2021-08-01 16:39:24 UTC
- Depth
- 25.6 km (15.9 mi), shallow
- Epicenter
- 51.474° N, 176.093° 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
- 21
Nearby
Within 100 km, magnitude 1.5 and up: 150 in the 60 days after this one and 140 in the 30 days before it.
After
- 3.517 km SE of Adak, Alaska · 1883 days ago · 69 km deep · 42 km away
- 3.244 km SSE of Adak, Alaska · 1883 days ago · 44 km deep · 22 km away
- 1.560 km SSW of Adak, Alaska · 1882 days ago · 36 km deep · 68 km away
- 1.546 km WSW of Adak, Alaska · 1882 days ago · 75 km deep · 84 km away
- 1.520 km SSW of Adak, Alaska · 1881 days ago · 74 km deep · 53 km away
- 1.559 km SE of Adak, Alaska · 1881 days ago · 23 km deep · 3 km away
- 1.765 km SE of Adak, Alaska · 1880 days ago · 24 km deep · 11 km away
- 3.672 km SE of Adak, Alaska · 1879 days ago · 30 km deep · 14 km away
- 1.565 km SSE of Adak, Alaska · 1879 days ago · 20 km deep · 14 km away
- 2.874 km SW of Adak, Alaska · 1878 days ago · 61 km deep · 91 km away
- 1.969 km SE of Adak, Alaska · 1878 days ago · 39 km deep · 12 km away
- 1.545 km SSW of Adak, Alaska · 1878 days ago · 63 km deep · 60 km away
- 1.9123 km SSW of Atka, Alaska · 1878 days ago · 26 km deep · 72 km away
- 2.0120 km SSW of Atka, Alaska · 1878 days ago · 21 km deep · 70 km away
- 3.072 km ESE of Adak, Alaska · 1877 days ago · 62 km deep · 36 km away
- 1.867 km WSW of Atka, Alaska · 1877 days ago · 69 km deep · 86 km away
- 1.646 km SW of Adak, Alaska · 1877 days ago · 48 km deep · 70 km away
- 3.6112 km SSW of Atka, Alaska · 1877 days ago · 11 km deep · 94 km away
- 2.6112 km SSW of Atka, Alaska · 1876 days ago · 11 km deep · 91 km away
- 1.6101 km SSE of Adak, Alaska · 1876 days ago · 24 km deep · 47 km away
- 3.9111 km SSW of Atka, Alaska · 1876 days ago · 27 km deep · 91 km away
- 2.0112 km SSW of Atka, Alaska · 1876 days ago · 12 km deep · 91 km away
- 1.9Andreanof Islands, Aleutian Islands, Alaska · 1875 days ago · 26 km deep · 68 km away
- 1.774 km SSE of Adak, Alaska · 1875 days ago · 25 km deep · 25 km away
- 3.054 km SE of Adak, Alaska · 1874 days ago · 35 km deep · 4 km away
- 2.744 km SSE of Adak, Alaska · 1874 days ago · 35 km deep · 18 km away
- 1.685 km SW of Atka, Alaska · 1874 days ago · 25 km deep · 75 km away
- 1.549 km S of Adak, Alaska · 1874 days ago · 48 km deep · 46 km away
- 1.535 km W of Adak, Alaska · 1873 days ago · 93 km deep · 86 km away
- 3.764 km SE of Adak, Alaska · 1873 days ago · 35 km deep · 9 km away
- 3.671 km SSW of Adak, Alaska · 1873 days ago · 35 km deep · 74 km away
- 1.6116 km SSW of Atka, Alaska · 1872 days ago · 19 km deep · 95 km away
- 1.741 km ENE of Adak, Alaska · 1872 days ago · 6 km deep · 65 km away
- 1.574 km E of Adak, Alaska · 1872 days ago · 22 km deep · 51 km away
- 1.644 km SW of Adak, Alaska · 1871 days ago · 28 km deep · 65 km away
- 3.142 km S of Adak, Alaska · 1871 days ago · 69 km deep · 31 km away
- 2.9Andreanof Islands, Aleutian Islands, Alaska · 1871 days ago · 33 km deep · 17 km away
- 1.620 km SE of Adak, Alaska · 1871 days ago · 71 km deep · 37 km away
- 1.539 km SSW of Adak, Alaska · 1871 days ago · 12 km deep · 61 km away
- 1.560 km SE of Adak, Alaska · 1871 days ago · 22 km deep · 4 km away
- 1.667 km SSW of Adak, Alaska · 1870 days ago · 27 km deep · 69 km away
- 2.6101 km SSW of Adak, Alaska · 1869 days ago · 24 km deep · 92 km away
- 1.7102 km SSW of Adak, Alaska · 1869 days ago · 47 km deep · 95 km away
- 3.183 km E of Adak, Alaska · 1869 days ago · 73 km deep · 58 km away
- 1.648 km SW of Adak, Alaska · 1868 days ago · 42 km deep · 67 km away
- 2.760 km SW of Adak, Alaska · 1868 days ago · 69 km deep · 83 km away
- 1.514 km SSE of Adak, Alaska · 1866 days ago · 80 km deep · 44 km away
- 1.573 km WSW of Atka, Alaska · 1866 days ago · 64 km deep · 81 km away
- 1.572 km SSE of Adak, Alaska · 1866 days ago · 21 km deep · 29 km away
- 2.053 km ENE of Adak, Alaska · 1865 days ago · 146 km deep · 66 km away
- 3.464 km SE of Adak, Alaska · 1865 days ago · 35 km deep · 9 km away
- 1.668 km SW of Adak, Alaska · 1863 days ago · 51 km deep · 88 km away
- 1.610 km SW of Adak, Alaska · 1863 days ago · 81 km deep · 57 km away
- 3.064 km SSW of Adak, Alaska · 1863 days ago · 35 km deep · 64 km away
- 3.2Andreanof Islands, Aleutian Islands, Alaska · 1863 days ago · 35 km deep · 93 km away
- 2.687 km S of Adak, Alaska · 1863 days ago · 35 km deep · 68 km away
- 1.915 km NE of Adak, Alaska · 1862 days ago · 151 km deep · 62 km away
- 1.664 km ENE of Adak, Alaska · 1862 days ago · 12 km deep · 71 km away
- 3.067 km E of Adak, Alaska · 1862 days ago · 71 km deep · 50 km away
- 1.980 km SE of Adak, Alaska · 1862 days ago · 26 km deep · 26 km away
The first 60 of 150.
Before
- 1.749 km S of Adak, Alaska · 1883 days ago · 30 km deep · 33 km away
- 1.578 km SSE of Adak, Alaska · 1883 days ago · 19 km deep · 32 km away
- 1.897 km S of Adak, Alaska · 1884 days ago · 26 km deep · 70 km away
- 1.638 km SW of Adak, Alaska · 1884 days ago · 27 km deep · 66 km away
- 3.054 km ESE of Adak, Alaska · 1884 days ago · 42 km deep · 23 km away
- 2.066 km NE of Adak, Alaska · 1885 days ago · 217 km deep · 95 km away
- 1.666 km SE of Adak, Alaska · 1885 days ago · 26 km deep · 11 km away
- 1.9Andreanof Islands, Aleutian Islands, Alaska · 1885 days ago · 29 km deep · 5 km away
- 1.568 km SSW of Adak, Alaska · 1885 days ago · 42 km deep · 73 km away
- 2.896 km SW of Atka, Alaska · 1885 days ago · 35 km deep · 65 km away
- 1.685 km WSW of Atka, Alaska · 1885 days ago · 78 km deep · 73 km away
- 1.954 km ENE of Adak, Alaska · 1885 days ago · 211 km deep · 70 km away
- 3.563 km SE of Adak, Alaska · 1885 days ago · 35 km deep · 6 km away
- 1.519 km WNW of Adak, Alaska · 1885 days ago · 86 km deep · 76 km away
- 2.055 km ENE of Adak, Alaska · 1886 days ago · 179 km deep · 63 km away
- 3.172 km ENE of Adak, Alaska · 1886 days ago · 98 km deep · 76 km away
- 1.643 km S of Adak, Alaska · 1886 days ago · 26 km deep · 35 km away
- 1.682 km ENE of Adak, Alaska · 1886 days ago · 13 km deep · 81 km away
- 1.781 km SW of Adak, Alaska · 1886 days ago · 25 km deep · 98 km away
- 1.550 km WSW of Adak, Alaska · 1887 days ago · 74 km deep · 93 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak0219sj89pj. Read Sun, Sep 27, 2026, 9:26 PM UTC.