M1.7 earthquake 76 km ENE of Adak, Alaska
A magnitude 1.7 earthquake struck 76 km ENE of Adak, Alaska on Tue, Jul 27, 2021, 1:13 AM HADT (10:13 UTC), 179 km (111 mi) below the surface.
A larger quake followed: M4.3 116 km NW 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
- 1.7 (ml), micro
- Local time
- UTC
- 2021-07-27 10:13:35 UTC
- Depth
- 178.8 km (111.1 mi), intermediate-depth
- Epicenter
- 52.105° N, 175.581° 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
- 19
Nearby
Within 100 km, magnitude 1.5 and up: 154 in the 60 days after this one and 95 in the 30 days before it.
After
- 2.129 km NNW of Atka, Alaska · 1890 days ago · 185 km deep · 92 km away
- 1.715 km E of Adak, AK · 1890 days ago · 76 km deep · 64 km away
- 3.035 km S of Adak, Alaska · 1890 days ago · 46 km deep · 91 km away
- 1.860 km SE of Adak, Alaska · 1890 days ago · 26 km deep · 71 km away
- 3.344 km NNE of Adak, Alaska · 1890 days ago · 211 km deep · 66 km away
- 1.837 km ENE of Adak, Alaska · 1889 days ago · 147 km deep · 40 km away
- 1.682 km ENE of Adak, Alaska · 1888 days ago · 13 km deep · 7 km away
- 1.643 km S of Adak, Alaska · 1888 days ago · 26 km deep · 98 km away
- 3.172 km ENE of Adak, Alaska · 1888 days ago · 98 km deep · 4 km away
- 2.055 km ENE of Adak, Alaska · 1888 days ago · 179 km deep · 21 km away
- 1.519 km WNW of Adak, Alaska · 1888 days ago · 86 km deep · 92 km away
- 3.074 km NW of Atka, Alaska · 1887 days ago · 206 km deep · 79 km away
- 3.563 km SE of Adak, Alaska · 1887 days ago · 35 km deep · 84 km away
- 1.954 km ENE of Adak, Alaska · 1887 days ago · 211 km deep · 24 km away
- 1.685 km WSW of Atka, Alaska · 1887 days ago · 78 km deep · 20 km away
- 2.896 km SW of Atka, Alaska · 1887 days ago · 35 km deep · 66 km away
- 2.989 km NNE of Adak, Alaska · 1887 days ago · 212 km deep · 59 km away
- 1.9Andreanof Islands, Aleutian Islands, Alaska · 1887 days ago · 29 km deep · 84 km away
- 1.666 km SE of Adak, Alaska · 1887 days ago · 26 km deep · 76 km away
- 2.066 km NE of Adak, Alaska · 1887 days ago · 217 km deep · 38 km away
- 3.054 km ESE of Adak, Alaska · 1886 days ago · 42 km deep · 55 km away
- 1.912 km S of Atka, Alaska · 1886 days ago · 24 km deep · 94 km away
- 1.658 km SE of Adak, Alaska · 1885 days ago · 26 km deep · 79 km away
- 2.741 km SSW of Atka, Alaska · 1885 days ago · 210 km deep · 78 km away
- 1.911 km S of Atka, Alaska · 1885 days ago · 74 km deep · 92 km away
- 3.517 km SE of Adak, Alaska · 1885 days ago · 69 km deep · 68 km away
- 3.244 km SSE of Adak, Alaska · 1885 days ago · 44 km deep · 88 km away
- 3.110 km NW of Atka, Alaska · 1883 days ago · 210 km deep · 88 km away
- 1.520 km SSW of Adak, Alaska · 1883 days ago · 74 km deep · 93 km away
- 1.559 km SE of Adak, Alaska · 1883 days ago · 23 km deep · 82 km away
- 1.765 km SE of Adak, Alaska · 1882 days ago · 24 km deep · 75 km away
- 3.672 km SE of Adak, Alaska · 1881 days ago · 30 km deep · 83 km away
- 1.565 km SSE of Adak, Alaska · 1881 days ago · 20 km deep · 93 km away
- 1.977 km NE of Adak, Alaska · 1881 days ago · 138 km deep · 46 km away
- 1.969 km SE of Adak, Alaska · 1880 days ago · 39 km deep · 79 km away
- 2.0120 km SSW of Atka, Alaska · 1880 days ago · 21 km deep · 97 km away
- 3.072 km ESE of Adak, Alaska · 1879 days ago · 62 km deep · 52 km away
- 1.867 km WSW of Atka, Alaska · 1879 days ago · 69 km deep · 41 km away
- 1.930 km SSW of Atka, Alaska · 1878 days ago · 65 km deep · 79 km away
- 2.122 km SSW of Atka, Alaska · 1877 days ago · 152 km deep · 84 km away
- 3.054 km SE of Adak, Alaska · 1876 days ago · 35 km deep · 79 km away
- 2.744 km SSE of Adak, Alaska · 1876 days ago · 35 km deep · 84 km away
- 1.685 km SW of Atka, Alaska · 1876 days ago · 25 km deep · 65 km away
- 3.160 km SSW of Atka, Alaska · 1876 days ago · 224 km deep · 81 km away
- 1.813 km N of Atka, Alaska · 1876 days ago · 4 km deep · 96 km away
- 1.815 km N of Atka, Alaska · 1876 days ago · 3 km deep · 99 km away
- 2.114 km N of Atka, Alaska · 1876 days ago · 5 km deep · 98 km away
- 2.014 km N of Atka, Alaska · 1876 days ago · 5 km deep · 98 km away
- 1.513 km N of Atka, Alaska · 1876 days ago · 5 km deep · 96 km away
- 2.114 km N of Atka, Alaska · 1876 days ago · 4 km deep · 98 km away
- 2.315 km N of Atka, Alaska · 1876 days ago · 4 km deep · 98 km away
- 3.764 km SE of Adak, Alaska · 1875 days ago · 35 km deep · 75 km away
- 1.613 km N of Atka, Alaska · 1875 days ago · 5 km deep · 97 km away
- 2.015 km N of Atka, Alaska · 1875 days ago · 4 km deep · 99 km away
- 3.028 km WSW of Atka, Alaska · 1874 days ago · 71 km deep · 67 km away
- 1.741 km ENE of Adak, Alaska · 1874 days ago · 6 km deep · 36 km away
- 1.574 km E of Adak, Alaska · 1874 days ago · 22 km deep · 34 km away
- 1.653 km SSW of Atka, Alaska · 1874 days ago · 15 km deep · 89 km away
- 3.142 km S of Adak, Alaska · 1873 days ago · 69 km deep · 95 km away
- 2.9Andreanof Islands, Aleutian Islands, Alaska · 1873 days ago · 33 km deep · 88 km away
The first 60 of 154.
Before
- 1.650 km ENE of Adak, Alaska · 1891 days ago · 148 km deep · 28 km away
- 3.079 km ENE of Adak, Alaska · 1891 days ago · 191 km deep · 18 km away
- 1.978 km ENE of Adak, Alaska · 1891 days ago · 166 km deep · 13 km away
- 3.647 km SE of Adak, Alaska · 1892 days ago · 48 km deep · 76 km away
- 2.920 km WNW of Atka, Alaska · 1892 days ago · 201 km deep · 77 km away
- 2.856 km E of Adak, Alaska · 1893 days ago · 67 km deep · 35 km away
- 2.291 km ESE of Adak, Alaska · 1893 days ago · 45 km deep · 47 km away
- 1.568 km SW of Atka, Alaska · 1893 days ago · 28 km deep · 65 km away
- 2.190 km SW of Atka, Alaska · 1893 days ago · 42 km deep · 57 km away
- 3.238 km ENE of Adak, Alaska · 1894 days ago · 146 km deep · 39 km away
- 1.867 km ENE of Adak, Alaska · 1894 days ago · 147 km deep · 11 km away
- 2.737 km N of Atka, Alaska · 1895 days ago · 202 km deep · 100 km away
- 2.1Andreanof Islands, Aleutian Islands, Alaska · 1895 days ago · 63 km deep · 45 km away
- 1.968 km ENE of Adak, Alaska · 1895 days ago · 166 km deep · 10 km away
- 1.948 km E of Adak, Alaska · 1895 days ago · 178 km deep · 32 km away
- 1.918 km WSW of Atka, Alaska · 1895 days ago · 147 km deep · 78 km away
- 2.882 km E of Adak, Alaska · 1895 days ago · 68 km deep · 27 km away
- 1.775 km SW of Atka, Alaska · 1895 days ago · 35 km deep · 63 km away
- 1.815 km NE of Adak, Alaska · 1895 days ago · 99 km deep · 61 km away
- 1.697 km SSW of Atka, Alaska · 1896 days ago · 26 km deep · 84 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak0219k5tdsz. Read Tue, Sep 29, 2026, 10:08 PM UTC.