M1.7 earthquake 159 km WSW of Adak, Alaska
A magnitude 1.7 earthquake struck 159 km WSW of Adak, Alaska on Thu, Jul 15, 2021, 2:02 AM HADT (11:02 UTC), 20 km (13 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
- 1.7 (ml), micro
- Local time
- UTC
- 2021-07-15 11:02:42 UTC
- Depth
- 20.4 km (12.7 mi), shallow
- Epicenter
- 51.132° N, 178.592° 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: 177 in the 60 days after this one and 65 in the 30 days before it.
After
- 1.5111 km SW of Adak, Alaska · 1896 days ago · 25 km deep · 59 km away
- 1.5151 km W of Adak, Alaska · 1896 days ago · 12 km deep · 60 km away
- 1.5118 km WSW of Adak, Alaska · 1895 days ago · 32 km deep · 42 km away
- 2.7108 km WSW of Adak, Alaska · 1895 days ago · 26 km deep · 52 km away
- 1.9125 km WSW of Adak, Alaska · 1895 days ago · 25 km deep · 38 km away
- 1.897 km WSW of Adak, Alaska · 1895 days ago · 48 km deep · 61 km away
- 1.896 km WSW of Adak, Alaska · 1894 days ago · 62 km deep · 62 km away
- 1.9Andreanof Islands, Aleutian Islands, Alaska · 1894 days ago · 83 km deep · 89 km away
- 1.9117 km WSW of Adak, Alaska · 1894 days ago · 18 km deep · 46 km away
- 2.0237 km WSW of Adak, Alaska · 1894 days ago · 10 km deep · 86 km away
- 1.6123 km WSW of Adak, Alaska · 1894 days ago · 26 km deep · 38 km away
- 1.8129 km WSW of Adak, Alaska · 1893 days ago · 6 km deep · 54 km away
- 1.9Andreanof Islands, Aleutian Islands, Alaska · 1892 days ago · 18 km deep · 42 km away
- 2.0198 km WSW of Adak, Alaska · 1891 days ago · 57 km deep · 71 km away
- 1.8124 km WSW of Adak, Alaska · 1891 days ago · 13 km deep · 35 km away
- 1.586 km SW of Adak, Alaska · 1891 days ago · 34 km deep · 73 km away
- 2.2110 km WSW of Adak, Alaska · 1891 days ago · 13 km deep · 51 km away
- 1.8110 km SW of Adak, Alaska · 1891 days ago · 19 km deep · 59 km away
- 2.889 km SW of Adak, Alaska · 1890 days ago · 27 km deep · 81 km away
- 1.7216 km WSW of Adak, Alaska · 1890 days ago · 55 km deep · 83 km away
- 2.8135 km WSW of Adak, Alaska · 1888 days ago · 25 km deep · 23 km away
- 1.8113 km WSW of Adak, Alaska · 1888 days ago · 48 km deep · 47 km away
- 2.2128 km WSW of Adak, Alaska · 1888 days ago · 35 km deep · 30 km away
- 2.063 km WSW of Adak, Alaska · 1888 days ago · 65 km deep · 96 km away
- 1.6158 km WSW of Adak, Alaska · 1887 days ago · 56 km deep · 38 km away
- 1.687 km WSW of Adak, Alaska · 1886 days ago · 62 km deep · 71 km away
- 1.966 km WSW of Adak, Alaska · 1886 days ago · 75 km deep · 97 km away
- 1.6145 km WSW of Adak, Alaska · 1885 days ago · 69 km deep · 43 km away
- 2.7141 km SW of Adak, Alaska · 1885 days ago · 35 km deep · 21 km away
- 1.8183 km WSW of Adak, Alaska · 1885 days ago · 20 km deep · 26 km away
- 4.0Andreanof Islands, Aleutian Islands, Alaska · 1884 days ago · 38 km deep · 48 km away
- 1.7117 km WSW of Adak, Alaska · 1884 days ago · 38 km deep · 43 km away
- 2.7123 km WSW of Adak, Alaska · 1884 days ago · 29 km deep · 37 km away
- 1.5131 km WSW of Adak, Alaska · 1883 days ago · 26 km deep · 31 km away
- 1.897 km WSW of Adak, Alaska · 1883 days ago · 62 km deep · 62 km away
- 1.8237 km WSW of Adak, Alaska · 1883 days ago · 24 km deep · 95 km away
- 1.781 km SW of Adak, Alaska · 1883 days ago · 25 km deep · 81 km away
- 1.9176 km SSW of Adak, Alaska · 1883 days ago · 26 km deep · 79 km away
- 1.8148 km WSW of Adak, Alaska · 1882 days ago · 24 km deep · 12 km away
- 1.8Andreanof Islands, Aleutian Islands, Alaska · 1881 days ago · 18 km deep · 74 km away
- 3.9220 km WSW of Adak, Alaska · 1881 days ago · 35 km deep · 63 km away
- 1.6117 km WSW of Adak, Alaska · 1880 days ago · 47 km deep · 45 km away
- 1.773 km W of Adak, Alaska · 1880 days ago · 73 km deep · 94 km away
- 4.0123 km WSW of Adak, Alaska · 1880 days ago · 47 km deep · 36 km away
- 2.5168 km SSW of Adak, Alaska · 1880 days ago · 10 km deep · 82 km away
- 1.8159 km WSW of Adak, Alaska · 1879 days ago · 25 km deep · 9 km away
- 1.669 km WSW of Adak, Alaska · 1879 days ago · 71 km deep · 95 km away
- 1.582 km WSW of Adak, Alaska · 1878 days ago · 38 km deep · 76 km away
- 2.1133 km W of Adak, Alaska · 1878 days ago · 139 km deep · 86 km away
- 1.6Andreanof Islands, Aleutian Islands, Alaska · 1878 days ago · 13 km deep · 46 km away
- 1.694 km SW of Adak, Alaska · 1878 days ago · 23 km deep · 75 km away
- 1.982 km W of Adak, Alaska · 1878 days ago · 7 km deep · 96 km away
- 1.6117 km WSW of Adak, Alaska · 1877 days ago · 45 km deep · 44 km away
- 1.677 km SW of Adak, Alaska · 1877 days ago · 29 km deep · 82 km away
- 3.4142 km WSW of Adak, Alaska · 1877 days ago · 32 km deep · 17 km away
- 1.9122 km WSW of Adak, Alaska · 1876 days ago · 25 km deep · 39 km away
- 2.0137 km SW of Adak, Alaska · 1876 days ago · 26 km deep · 29 km away
- 1.8131 km SW of Adak, Alaska · 1876 days ago · 26 km deep · 31 km away
- 1.5236 km WSW of Adak, Alaska · 1876 days ago · 13 km deep · 88 km away
- 2.068 km W of Adak, Alaska · 1875 days ago · 73 km deep · 97 km away
The first 60 of 177.
Before
- 1.6253 km WSW of Adak, Alaska · 1897 days ago · 37 km deep · 96 km away
- 1.7112 km WSW of Adak, Alaska · 1898 days ago · 30 km deep · 49 km away
- 2.678 km WSW of Adak, Alaska · 1898 days ago · 71 km deep · 84 km away
- 1.780 km SSW of Adak, Alaska · 1899 days ago · 26 km deep · 96 km away
- 1.7222 km WSW of Adak, Alaska · 1899 days ago · 58 km deep · 89 km away
- 2.7135 km SW of Adak, Alaska · 1899 days ago · 26 km deep · 33 km away
- 1.5132 km W of Adak, Alaska · 1899 days ago · 110 km deep · 80 km away
- 1.6175 km W of Adak, Alaska · 1899 days ago · 84 km deep · 75 km away
- 1.7129 km WSW of Adak, Alaska · 1899 days ago · 5 km deep · 56 km away
- 2.595 km WSW of Adak, Alaska · 1899 days ago · 73 km deep · 70 km away
- 1.6155 km WSW of Adak, Alaska · 1900 days ago · 24 km deep · 6 km away
- 3.2250 km WSW of Adak, Alaska · 1900 days ago · 26 km deep · 94 km away
- 1.5142 km SW of Adak, Alaska · 1901 days ago · 42 km deep · 33 km away
- 1.9241 km WSW of Adak, Alaska · 1901 days ago · 26 km deep · 89 km away
- 2.2156 km WSW of Adak, Alaska · 1901 days ago · 25 km deep · 4 km away
- 1.7197 km WSW of Adak, Alaska · 1901 days ago · 22 km deep · 43 km away
- 1.9123 km WSW of Adak, Alaska · 1901 days ago · 10 km deep · 55 km away
- 1.5103 km W of Adak, Alaska · 1902 days ago · 5 km deep · 90 km away
- 1.7144 km SW of Adak, Alaska · 1902 days ago · 26 km deep · 16 km away
- 2.0186 km WSW of Adak, Alaska · 1903 days ago · 13 km deep · 44 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak02190bwbfv. Read Thu, Sep 24, 2026, 12:07 PM UTC.