M1.5 earthquake 131 km WSW of Adak, Alaska
A magnitude 1.5 earthquake struck 131 km WSW of Adak, Alaska on Wed, Jul 28, 2021, 8:23 PM HADT (05:23 UTC), 26 km (16 mi) below the surface.
A larger quake followed: M6.1 187 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
- 1.5 (ml), micro
- Local time
- UTC
- 2021-07-29 05:23:43 UTC
- Depth
- 26.0 km (16.2 mi), shallow
- Epicenter
- 51.360° N, 178.337° 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
- 25
Nearby
Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 85 in the 30 days before it.
After
- 1.897 km WSW of Adak, Alaska · 1883 days ago · 62 km deep · 33 km away
- 1.550 km WSW of Adak, Alaska · 1883 days ago · 74 km deep · 82 km away
- 1.781 km SW of Adak, Alaska · 1883 days ago · 25 km deep · 59 km away
- 1.767 km W of Adak, Alaska · 1883 days ago · 93 km deep · 73 km away
- 1.9176 km SSW of Adak, Alaska · 1883 days ago · 26 km deep · 95 km away
- 1.8148 km WSW of Adak, Alaska · 1882 days ago · 24 km deep · 23 km away
- 1.568 km SSW of Adak, Alaska · 1882 days ago · 42 km deep · 85 km away
- 1.8Andreanof Islands, Aleutian Islands, Alaska · 1881 days ago · 18 km deep · 49 km away
- 3.9220 km WSW of Adak, Alaska · 1881 days ago · 35 km deep · 89 km away
- 1.6117 km WSW of Adak, Alaska · 1881 days ago · 47 km deep · 14 km away
- 1.638 km SW of Adak, Alaska · 1881 days ago · 27 km deep · 96 km away
- 1.773 km W of Adak, Alaska · 1880 days ago · 73 km deep · 63 km away
- 4.0123 km WSW of Adak, Alaska · 1880 days ago · 47 km deep · 11 km away
- 2.5168 km SSW of Adak, Alaska · 1880 days ago · 10 km deep · 95 km away
- 1.8159 km WSW of Adak, Alaska · 1879 days ago · 25 km deep · 29 km away
- 1.560 km SSW of Adak, Alaska · 1879 days ago · 36 km deep · 88 km away
- 1.669 km WSW of Adak, Alaska · 1879 days ago · 71 km deep · 64 km away
- 1.582 km WSW of Adak, Alaska · 1879 days ago · 38 km deep · 49 km away
- 2.1133 km W of Adak, Alaska · 1878 days ago · 139 km deep · 63 km away
- 1.546 km WSW of Adak, Alaska · 1878 days ago · 75 km deep · 84 km away
- 1.6Andreanof Islands, Aleutian Islands, Alaska · 1878 days ago · 13 km deep · 15 km away
- 1.694 km SW of Adak, Alaska · 1878 days ago · 23 km deep · 58 km away
- 1.982 km W of Adak, Alaska · 1878 days ago · 7 km deep · 65 km away
- 1.6117 km WSW of Adak, Alaska · 1877 days ago · 45 km deep · 14 km away
- 1.677 km SW of Adak, Alaska · 1877 days ago · 29 km deep · 57 km away
- 3.4142 km WSW of Adak, Alaska · 1877 days ago · 32 km deep · 14 km away
- 1.9122 km WSW of Adak, Alaska · 1876 days ago · 25 km deep · 9 km away
- 2.0137 km SW of Adak, Alaska · 1876 days ago · 26 km deep · 31 km away
- 1.8131 km SW of Adak, Alaska · 1876 days ago · 26 km deep · 25 km away
- 2.068 km W of Adak, Alaska · 1875 days ago · 73 km deep · 67 km away
- 2.874 km SW of Adak, Alaska · 1875 days ago · 61 km deep · 65 km away
- 1.545 km SSW of Adak, Alaska · 1875 days ago · 63 km deep · 97 km away
- 2.0204 km WSW of Adak, Alaska · 1874 days ago · 70 km deep · 85 km away
- 1.889 km SW of Adak, Alaska · 1874 days ago · 33 km deep · 45 km away
- 1.646 km SW of Adak, Alaska · 1874 days ago · 48 km deep · 89 km away
- 1.9Andreanof Islands, Aleutian Islands, Alaska · 1873 days ago · 13 km deep · 91 km away
- 3.6127 km WSW of Adak, Alaska · 1873 days ago · 35 km deep · 12 km away
- 1.684 km WSW of Adak, Alaska · 1873 days ago · 13 km deep · 47 km away
- 1.584 km WSW of Adak, Alaska · 1873 days ago · 24 km deep · 47 km away
- 1.582 km W of Adak, Alaska · 1872 days ago · 7 km deep · 64 km away
- 1.687 km WSW of Adak, Alaska · 1872 days ago · 13 km deep · 45 km away
- 1.682 km WSW of Adak, Alaska · 1872 days ago · 25 km deep · 48 km away
- 1.9Andreanof Islands, Aleutian Islands, Alaska · 1872 days ago · 26 km deep · 88 km away
- 1.7184 km W of Adak, Alaska · 1870 days ago · 139 km deep · 84 km away
- 1.7100 km SW of Adak, Alaska · 1870 days ago · 26 km deep · 48 km away
- 1.6206 km WSW of Adak, Alaska · 1870 days ago · 47 km deep · 81 km away
- 1.7111 km WSW of Adak, Alaska · 1869 days ago · 13 km deep · 20 km away
- 3.671 km SSW of Adak, Alaska · 1869 days ago · 35 km deep · 84 km away
- 1.5213 km W of Adak, Alaska · 1869 days ago · 73 km deep · 99 km away
- 2.1114 km WSW of Adak, Alaska · 1869 days ago · 26 km deep · 16 km away
- 2.078 km SW of Adak, Alaska · 1869 days ago · 24 km deep · 56 km away
- 1.7176 km WSW of Adak, Alaska · 1869 days ago · 17 km deep · 50 km away
- 1.8121 km WSW of Adak, Alaska · 1868 days ago · 8 km deep · 10 km away
- 1.644 km SW of Adak, Alaska · 1868 days ago · 28 km deep · 93 km away
- 1.5129 km WSW of Adak, Alaska · 1868 days ago · 7 km deep · 32 km away
- 1.6115 km WSW of Adak, Alaska · 1868 days ago · 24 km deep · 16 km away
- 1.539 km SSW of Adak, Alaska · 1868 days ago · 12 km deep · 99 km away
- 1.7150 km W of Adak, Alaska · 1867 days ago · 4 km deep · 58 km away
- 1.783 km SW of Adak, Alaska · 1867 days ago · 30 km deep · 49 km away
- 1.7199 km WSW of Adak, Alaska · 1867 days ago · 26 km deep · 69 km away
The first 60 of at least 199.
Before
- 2.7123 km WSW of Adak, Alaska · 1884 days ago · 29 km deep · 8 km away
- 1.7117 km WSW of Adak, Alaska · 1884 days ago · 38 km deep · 15 km away
- 4.0Andreanof Islands, Aleutian Islands, Alaska · 1884 days ago · 38 km deep · 30 km away
- 1.8183 km WSW of Adak, Alaska · 1885 days ago · 20 km deep · 53 km away
- 2.7141 km SW of Adak, Alaska · 1885 days ago · 35 km deep · 25 km away
- 1.6145 km WSW of Adak, Alaska · 1885 days ago · 69 km deep · 28 km away
- 2.045 km WSW of Adak, Alaska · 1886 days ago · 70 km deep · 86 km away
- 1.966 km WSW of Adak, Alaska · 1886 days ago · 75 km deep · 67 km away
- 1.687 km WSW of Adak, Alaska · 1886 days ago · 62 km deep · 44 km away
- 1.6158 km WSW of Adak, Alaska · 1887 days ago · 56 km deep · 35 km away
- 2.063 km WSW of Adak, Alaska · 1888 days ago · 65 km deep · 67 km away
- 2.2128 km WSW of Adak, Alaska · 1888 days ago · 35 km deep · 8 km away
- 1.8113 km WSW of Adak, Alaska · 1888 days ago · 48 km deep · 17 km away
- 2.8135 km WSW of Adak, Alaska · 1888 days ago · 25 km deep · 13 km away
- 1.7216 km WSW of Adak, Alaska · 1890 days ago · 55 km deep · 94 km away
- 2.889 km SW of Adak, Alaska · 1890 days ago · 27 km deep · 63 km away
- 1.8110 km SW of Adak, Alaska · 1891 days ago · 19 km deep · 47 km away
- 2.2110 km WSW of Adak, Alaska · 1891 days ago · 13 km deep · 21 km away
- 4.383 km W of Adak, Alaska · 1891 days ago · 8 km deep · 73 km away
- 1.586 km SW of Adak, Alaska · 1891 days ago · 34 km deep · 48 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak0219ndz2ko. Read Thu, Sep 24, 2026, 2:10 PM UTC.