M1.8 earthquake 58 km WSW of Atka, Alaska
A magnitude 1.8 earthquake struck 58 km WSW of Atka, Alaska on Fri, Jul 16, 2021, 6:55 AM HADT (15:55 UTC), 73 km (45 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
- 1.8 (ml), micro
- Local time
- UTC
- 2021-07-16 15:55:00 UTC
- Depth
- 72.9 km (45.3 mi), intermediate-depth
- Epicenter
- 52.042° N, 175.019° 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
- 20
Nearby
Within 100 km, magnitude 1.5 and up: 172 in the 60 days after this one and 63 in the 30 days before it.
After
- 1.847 km E of Adak, Alaska · 1899 days ago · 155 km deep · 65 km away
- 2.336 km E of Atka, Alaska · 1899 days ago · 11 km deep · 93 km away
- 2.460 km NE of Adak, Alaska · 1899 days ago · 183 km deep · 75 km away
- 2.636 km NW of Atka, Alaska · 1898 days ago · 176 km deep · 45 km away
- 2.432 km E of Atka, Alaska · 1898 days ago · 7 km deep · 90 km away
- 1.6Andreanof Islands, Aleutian Islands, Alaska · 1898 days ago · 26 km deep · 61 km away
- 3.982 km SW of Atka, Alaska · 1897 days ago · 49 km deep · 32 km away
- 2.361 km ENE of Adak, Alaska · 1896 days ago · 101 km deep · 61 km away
- 2.06 km SSE of Atka, Alaska · 1896 days ago · 79 km deep · 61 km away
- 1.818 km W of Atka, Alaska · 1896 days ago · 73 km deep · 40 km away
- 1.983 km SW of Atka, Alaska · 1895 days ago · 26 km deep · 43 km away
- 2.183 km SE of Adak, Alaska · 1894 days ago · 21 km deep · 82 km away
- 2.317 km NNE of Atka, Alaska · 1894 days ago · 197 km deep · 73 km away
- 1.667 km SE of Adak, Alaska · 1894 days ago · 22 km deep · 95 km away
- 2.095 km SSW of Atka, Alaska · 1894 days ago · 16 km deep · 66 km away
- 1.697 km SSW of Atka, Alaska · 1894 days ago · 26 km deep · 65 km away
- 1.815 km NE of Adak, Alaska · 1893 days ago · 99 km deep · 98 km away
- 1.775 km SW of Atka, Alaska · 1893 days ago · 35 km deep · 39 km away
- 2.882 km E of Adak, Alaska · 1893 days ago · 68 km deep · 33 km away
- 1.918 km WSW of Atka, Alaska · 1893 days ago · 147 km deep · 40 km away
- 1.948 km E of Adak, Alaska · 1893 days ago · 178 km deep · 64 km away
- 1.968 km ENE of Adak, Alaska · 1893 days ago · 166 km deep · 45 km away
- 2.1Andreanof Islands, Aleutian Islands, Alaska · 1893 days ago · 63 km deep · 70 km away
- 2.153 km SE of Atka, Alaska · 1893 days ago · 17 km deep · 90 km away
- 2.675 km S of Atka, Alaska · 1893 days ago · 22 km deep · 76 km away
- 2.134 km ENE of Atka, Alaska · 1893 days ago · 150 km deep · 93 km away
- 2.737 km N of Atka, Alaska · 1893 days ago · 202 km deep · 74 km away
- 1.867 km ENE of Adak, Alaska · 1892 days ago · 147 km deep · 46 km away
- 3.238 km ENE of Adak, Alaska · 1892 days ago · 146 km deep · 76 km away
- 2.190 km SW of Atka, Alaska · 1891 days ago · 42 km deep · 45 km away
- 1.568 km SW of Atka, Alaska · 1891 days ago · 28 km deep · 36 km away
- 2.291 km ESE of Adak, Alaska · 1891 days ago · 45 km deep · 43 km away
- 2.856 km E of Adak, Alaska · 1891 days ago · 67 km deep · 60 km away
- 2.920 km WNW of Atka, Alaska · 1890 days ago · 201 km deep · 44 km away
- 3.647 km SE of Adak, Alaska · 1890 days ago · 48 km deep · 98 km away
- 1.978 km ENE of Adak, Alaska · 1890 days ago · 166 km deep · 47 km away
- 3.079 km ENE of Adak, Alaska · 1889 days ago · 191 km deep · 50 km away
- 1.650 km ENE of Adak, Alaska · 1889 days ago · 148 km deep · 67 km away
- 1.776 km ENE of Adak, Alaska · 1889 days ago · 179 km deep · 39 km away
- 2.129 km NNW of Atka, Alaska · 1888 days ago · 185 km deep · 64 km away
- 1.715 km E of Adak, AK · 1888 days ago · 76 km deep · 98 km away
- 2.940 km ESE of Atka, Alaska · 1888 days ago · 5 km deep · 93 km away
- 1.860 km SE of Adak, Alaska · 1888 days ago · 26 km deep · 88 km away
- 1.837 km ENE of Adak, Alaska · 1887 days ago · 147 km deep · 78 km away
- 1.682 km ENE of Adak, Alaska · 1886 days ago · 13 km deep · 32 km away
- 3.172 km ENE of Adak, Alaska · 1886 days ago · 98 km deep · 43 km away
- 2.055 km ENE of Adak, Alaska · 1886 days ago · 179 km deep · 58 km away
- 3.074 km NW of Atka, Alaska · 1886 days ago · 206 km deep · 73 km away
- 1.954 km ENE of Adak, Alaska · 1885 days ago · 211 km deep · 62 km away
- 1.685 km WSW of Atka, Alaska · 1885 days ago · 78 km deep · 27 km away
- 2.896 km SW of Atka, Alaska · 1885 days ago · 35 km deep · 53 km away
- 2.989 km NNE of Adak, Alaska · 1885 days ago · 212 km deep · 88 km away
- 1.666 km SE of Adak, Alaska · 1885 days ago · 26 km deep · 91 km away
- 2.066 km NE of Adak, Alaska · 1885 days ago · 217 km deep · 75 km away
- 3.054 km ESE of Adak, Alaska · 1884 days ago · 42 km deep · 76 km away
- 1.912 km S of Atka, Alaska · 1884 days ago · 24 km deep · 56 km away
- 1.658 km SE of Adak, Alaska · 1883 days ago · 26 km deep · 97 km away
- 2.741 km SSW of Atka, Alaska · 1883 days ago · 210 km deep · 40 km away
- 1.911 km S of Atka, Alaska · 1883 days ago · 74 km deep · 54 km away
- 3.110 km NW of Atka, Alaska · 1881 days ago · 210 km deep · 53 km away
The first 60 of 172.
Before
- 3.380 km E of Adak, Alaska · 1900 days ago · 10 km deep · 35 km away
- 3.131 km E of Atka, Alaska · 1900 days ago · 13 km deep · 89 km away
- 1.571 km WSW of Atka, Alaska · 1900 days ago · 67 km deep · 20 km away
- 2.429 km E of Atka, Alaska · 1901 days ago · 11 km deep · 87 km away
- 1.782 km SE of Adak, Alaska · 1901 days ago · 22 km deep · 82 km away
- 1.742 km ENE of Adak, Alaska · 1901 days ago · 4 km deep · 74 km away
- 1.596 km SE of Adak, Alaska · 1902 days ago · 6 km deep · 88 km away
- 1.654 km ENE of Adak, Alaska · 1902 days ago · 170 km deep · 60 km away
- 1.531 km SSW of Atka, Alaska · 1902 days ago · 70 km deep · 47 km away
- 2.130 km SSE of Atka, Alaska · 1902 days ago · 2 km deep · 70 km away
- 1.853 km ENE of Adak, Alaska · 1902 days ago · 146 km deep · 59 km away
- 1.842 km ESE of Atka, Alaska · 1902 days ago · 66 km deep · 96 km away
- 1.944 km E of Adak, Alaska · 1902 days ago · 125 km deep · 68 km away
- 2.075 km ENE of Adak, Alaska · 1903 days ago · 94 km deep · 41 km away
- 2.519 km SW of Atka, Alaska · 1903 days ago · 186 km deep · 43 km away
- 2.857 km ESE of Adak, Alaska · 1903 days ago · 38 km deep · 74 km away
- 3.059 km ESE of Adak, Alaska · 1903 days ago · 38 km deep · 75 km away
- 1.650 km SE of Atka, Alaska · 1904 days ago · 75 km deep · 98 km away
- 1.836 km SSE of Atka, Alaska · 1904 days ago · 122 km deep · 68 km away
- 2.653 km ESE of Adak, Alaska · 1904 days ago · 43 km deep · 72 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak0219224ns5. Read Sun, Sep 27, 2026, 11:31 PM UTC.