M1.6 earthquake 87 km WSW of Adak, Alaska
A magnitude 1.6 earthquake struck 87 km WSW of Adak, Alaska on Sun, Jul 25, 2021, 8:33 PM HADT (05:33 UTC), 62 km (38 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
- 1.6 (ml), micro
- Local time
- UTC
- 2021-07-26 05:33:26 UTC
- Depth
- 61.5 km (38.2 mi), shallow
- Epicenter
- 51.487° N, 177.743° 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
- 30
Nearby
Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 100 in the 30 days before it.
After
- 4.087 km S of Adak, Alaska · 1886 days ago · 10 km deep · 93 km away
- 3.889 km S of Adak, Alaska · 1886 days ago · 16 km deep · 99 km away
- 1.966 km WSW of Adak, Alaska · 1886 days ago · 75 km deep · 29 km away
- 3.988 km S of Adak, Alaska · 1886 days ago · 23 km deep · 99 km away
- 2.045 km WSW of Adak, Alaska · 1886 days ago · 70 km deep · 43 km away
- 1.6145 km WSW of Adak, Alaska · 1886 days ago · 69 km deep · 63 km away
- 1.587 km S of Adak, Alaska · 1885 days ago · 39 km deep · 99 km away
- 2.7141 km SW of Adak, Alaska · 1885 days ago · 35 km deep · 55 km away
- 1.8183 km WSW of Adak, Alaska · 1885 days ago · 20 km deep · 96 km away
- 1.570 km S of Adak, Alaska · 1885 days ago · 21 km deep · 86 km away
- 3.035 km S of Adak, Alaska · 1885 days ago · 46 km deep · 82 km away
- 4.0Andreanof Islands, Aleutian Islands, Alaska · 1884 days ago · 38 km deep · 27 km away
- 1.7117 km WSW of Adak, Alaska · 1884 days ago · 38 km deep · 29 km away
- 2.7123 km WSW of Adak, Alaska · 1884 days ago · 29 km deep · 36 km away
- 3.044 km SSW of Adak, Alaska · 1884 days ago · 70 km deep · 58 km away
- 1.5131 km WSW of Adak, Alaska · 1883 days ago · 26 km deep · 44 km away
- 1.897 km WSW of Adak, Alaska · 1883 days ago · 62 km deep · 10 km away
- 1.550 km WSW of Adak, Alaska · 1883 days ago · 74 km deep · 42 km away
- 1.781 km SW of Adak, Alaska · 1883 days ago · 25 km deep · 21 km away
- 1.643 km S of Adak, Alaska · 1883 days ago · 26 km deep · 80 km away
- 1.767 km W of Adak, Alaska · 1883 days ago · 93 km deep · 40 km away
- 1.519 km WNW of Adak, Alaska · 1882 days ago · 86 km deep · 78 km away
- 1.8148 km WSW of Adak, Alaska · 1882 days ago · 24 km deep · 60 km away
- 1.568 km SSW of Adak, Alaska · 1882 days ago · 42 km deep · 46 km away
- 1.8Andreanof Islands, Aleutian Islands, Alaska · 1881 days ago · 18 km deep · 8 km away
- 1.6117 km WSW of Adak, Alaska · 1881 days ago · 47 km deep · 32 km away
- 1.638 km SW of Adak, Alaska · 1881 days ago · 27 km deep · 52 km away
- 1.897 km S of Adak, Alaska · 1880 days ago · 26 km deep · 87 km away
- 1.749 km S of Adak, Alaska · 1880 days ago · 30 km deep · 82 km away
- 1.773 km W of Adak, Alaska · 1880 days ago · 73 km deep · 31 km away
- 4.0123 km WSW of Adak, Alaska · 1880 days ago · 47 km deep · 35 km away
- 1.8159 km WSW of Adak, Alaska · 1879 days ago · 25 km deep · 71 km away
- 3.517 km SE of Adak, Alaska · 1879 days ago · 69 km deep · 97 km away
- 3.244 km SSE of Adak, Alaska · 1879 days ago · 44 km deep · 92 km away
- 1.560 km SSW of Adak, Alaska · 1879 days ago · 36 km deep · 48 km away
- 1.669 km WSW of Adak, Alaska · 1879 days ago · 71 km deep · 28 km away
- 1.582 km WSW of Adak, Alaska · 1879 days ago · 38 km deep · 6 km away
- 2.1133 km W of Adak, Alaska · 1879 days ago · 139 km deep · 74 km away
- 1.546 km WSW of Adak, Alaska · 1878 days ago · 75 km deep · 42 km away
- 1.6Andreanof Islands, Aleutian Islands, Alaska · 1878 days ago · 13 km deep · 31 km away
- 1.694 km SW of Adak, Alaska · 1878 days ago · 23 km deep · 32 km away
- 1.982 km W of Adak, Alaska · 1878 days ago · 7 km deep · 41 km away
- 1.520 km SSW of Adak, Alaska · 1878 days ago · 74 km deep · 72 km away
- 1.6117 km WSW of Adak, Alaska · 1877 days ago · 45 km deep · 31 km away
- 1.677 km SW of Adak, Alaska · 1877 days ago · 29 km deep · 14 km away
- 3.4142 km WSW of Adak, Alaska · 1877 days ago · 32 km deep · 55 km away
- 1.9122 km WSW of Adak, Alaska · 1876 days ago · 25 km deep · 35 km away
- 2.0137 km SW of Adak, Alaska · 1876 days ago · 26 km deep · 53 km away
- 1.8131 km SW of Adak, Alaska · 1876 days ago · 26 km deep · 45 km away
- 2.068 km W of Adak, Alaska · 1875 days ago · 73 km deep · 32 km away
- 2.874 km SW of Adak, Alaska · 1875 days ago · 61 km deep · 26 km away
- 1.545 km SSW of Adak, Alaska · 1875 days ago · 63 km deep · 55 km away
- 1.889 km SW of Adak, Alaska · 1874 days ago · 33 km deep · 8 km away
- 1.646 km SW of Adak, Alaska · 1874 days ago · 48 km deep · 46 km away
- 3.6127 km WSW of Adak, Alaska · 1873 days ago · 35 km deep · 39 km away
- 1.684 km WSW of Adak, Alaska · 1873 days ago · 13 km deep · 3 km away
- 1.584 km WSW of Adak, Alaska · 1873 days ago · 24 km deep · 6 km away
- 1.582 km W of Adak, Alaska · 1872 days ago · 7 km deep · 40 km away
- 1.687 km WSW of Adak, Alaska · 1872 days ago · 13 km deep · 3 km away
- 1.682 km WSW of Adak, Alaska · 1872 days ago · 25 km deep · 7 km away
The first 60 of at least 199.
Before
- 1.6158 km WSW of Adak, Alaska · 1887 days ago · 56 km deep · 74 km away
- 2.172 km S of Adak, Alaska · 1887 days ago · 26 km deep · 87 km away
- 2.776 km S of Adak, Alaska · 1887 days ago · 20 km deep · 89 km away
- 3.869 km S of Adak, Alaska · 1887 days ago · 35 km deep · 90 km away
- 2.063 km WSW of Adak, Alaska · 1888 days ago · 65 km deep · 25 km away
- 2.370 km S of Adak, Alaska · 1888 days ago · 21 km deep · 87 km away
- 1.585 km S of Adak, Alaska · 1888 days ago · 17 km deep · 96 km away
- 4.177 km S of Adak, Alaska · 1888 days ago · 29 km deep · 96 km away
- 2.2128 km WSW of Adak, Alaska · 1888 days ago · 35 km deep · 41 km away
- 1.8113 km WSW of Adak, Alaska · 1888 days ago · 48 km deep · 26 km away
- 1.986 km S of Adak, Alaska · 1888 days ago · 26 km deep · 98 km away
- 2.8135 km WSW of Adak, Alaska · 1888 days ago · 25 km deep · 48 km away
- 3.662 km S of Adak, Alaska · 1888 days ago · 55 km deep · 86 km away
- 2.267 km S of Adak, Alaska · 1888 days ago · 21 km deep · 86 km away
- 4.074 km S of Adak, Alaska · 1888 days ago · 35 km deep · 96 km away
- 1.553 km S of Adak, Alaska · 1888 days ago · 25 km deep · 78 km away
- 2.889 km SW of Adak, Alaska · 1890 days ago · 27 km deep · 33 km away
- 1.8110 km SW of Adak, Alaska · 1891 days ago · 19 km deep · 36 km away
- 1.531 km SSE of Adak, Alaska · 1891 days ago · 59 km deep · 86 km away
- 2.2110 km WSW of Adak, Alaska · 1891 days ago · 13 km deep · 24 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak0219iff4w2. Read Thu, Sep 24, 2026, 3:13 PM UTC.