M1.5 earthquake 78 km SSE of Adak, Alaska
A magnitude 1.5 earthquake struck 78 km SSE of Adak, Alaska on Sun, Aug 1, 2021, 4:50 AM HADT (13:50 UTC), 19 km (12 mi) below the surface.
A larger quake followed: M4.5 161 km S 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
- 2021-08-01 13:50:11 UTC
- Depth
- 19.2 km (11.9 mi), shallow
- Epicenter
- 51.205° N, 176.275° 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
- 16
Nearby
Within 100 km, magnitude 1.5 and up: 143 in the 60 days after this one and 119 in the 30 days before it.
After
- 1.749 km S of Adak, Alaska · 1883 days ago · 30 km deep · 32 km away
- 1.658 km SE of Adak, Alaska · 1883 days ago · 26 km deep · 32 km away
- 3.517 km SE of Adak, Alaska · 1883 days ago · 69 km deep · 66 km away
- 3.244 km SSE of Adak, Alaska · 1883 days ago · 44 km deep · 34 km away
- 1.560 km SSW of Adak, Alaska · 1882 days ago · 36 km deep · 59 km away
- 1.546 km WSW of Adak, Alaska · 1882 days ago · 75 km deep · 88 km away
- 1.694 km SW of Adak, Alaska · 1881 days ago · 23 km deep · 88 km away
- 1.520 km SSW of Adak, Alaska · 1881 days ago · 74 km deep · 65 km away
- 1.559 km SE of Adak, Alaska · 1881 days ago · 23 km deep · 29 km away
- 1.677 km SW of Adak, Alaska · 1880 days ago · 29 km deep · 93 km away
- 1.765 km SE of Adak, Alaska · 1880 days ago · 24 km deep · 38 km away
- 3.672 km SE of Adak, Alaska · 1879 days ago · 30 km deep · 32 km away
- 1.565 km SSE of Adak, Alaska · 1879 days ago · 20 km deep · 18 km away
- 2.874 km SW of Adak, Alaska · 1878 days ago · 61 km deep · 81 km away
- 1.969 km SE of Adak, Alaska · 1878 days ago · 39 km deep · 34 km away
- 1.545 km SSW of Adak, Alaska · 1878 days ago · 63 km deep · 59 km away
- 1.9123 km SSW of Atka, Alaska · 1878 days ago · 26 km deep · 80 km away
- 2.0120 km SSW of Atka, Alaska · 1878 days ago · 21 km deep · 80 km away
- 3.072 km ESE of Adak, Alaska · 1877 days ago · 62 km deep · 65 km away
- 1.646 km SW of Adak, Alaska · 1877 days ago · 48 km deep · 69 km away
- 1.6101 km SSE of Adak, Alaska · 1876 days ago · 24 km deep · 27 km away
- 1.9Andreanof Islands, Aleutian Islands, Alaska · 1875 days ago · 26 km deep · 59 km away
- 1.774 km SSE of Adak, Alaska · 1875 days ago · 25 km deep · 8 km away
- 3.054 km SE of Adak, Alaska · 1874 days ago · 35 km deep · 33 km away
- 2.744 km SSE of Adak, Alaska · 1874 days ago · 35 km deep · 35 km away
- 1.685 km SW of Atka, Alaska · 1874 days ago · 25 km deep · 98 km away
- 1.549 km S of Adak, Alaska · 1874 days ago · 48 km deep · 42 km away
- 1.7100 km SW of Adak, Alaska · 1874 days ago · 26 km deep · 97 km away
- 1.535 km W of Adak, Alaska · 1873 days ago · 93 km deep · 97 km away
- 3.764 km SE of Adak, Alaska · 1873 days ago · 35 km deep · 37 km away
- 3.671 km SSW of Adak, Alaska · 1873 days ago · 35 km deep · 60 km away
- 2.078 km SW of Adak, Alaska · 1872 days ago · 24 km deep · 93 km away
- 1.741 km ENE of Adak, Alaska · 1872 days ago · 6 km deep · 95 km away
- 1.574 km E of Adak, Alaska · 1872 days ago · 22 km deep · 82 km away
- 1.644 km SW of Adak, Alaska · 1871 days ago · 28 km deep · 65 km away
- 3.142 km S of Adak, Alaska · 1871 days ago · 69 km deep · 37 km away
- 2.9Andreanof Islands, Aleutian Islands, Alaska · 1871 days ago · 33 km deep · 29 km away
- 1.620 km SE of Adak, Alaska · 1871 days ago · 71 km deep · 59 km away
- 1.539 km SSW of Adak, Alaska · 1871 days ago · 12 km deep · 63 km away
- 1.560 km SE of Adak, Alaska · 1871 days ago · 22 km deep · 29 km away
- 1.783 km SW of Adak, Alaska · 1871 days ago · 30 km deep · 99 km away
- 1.667 km SSW of Adak, Alaska · 1870 days ago · 27 km deep · 56 km away
- 2.6101 km SSW of Adak, Alaska · 1869 days ago · 24 km deep · 69 km away
- 1.7102 km SSW of Adak, Alaska · 1869 days ago · 47 km deep · 72 km away
- 3.183 km E of Adak, Alaska · 1869 days ago · 73 km deep · 88 km away
- 1.648 km SW of Adak, Alaska · 1868 days ago · 42 km deep · 65 km away
- 2.760 km SW of Adak, Alaska · 1868 days ago · 69 km deep · 79 km away
- 1.514 km SSE of Adak, Alaska · 1866 days ago · 80 km deep · 64 km away
- 1.572 km SSE of Adak, Alaska · 1866 days ago · 21 km deep · 6 km away
- 2.053 km ENE of Adak, Alaska · 1865 days ago · 146 km deep · 98 km away
- 3.464 km SE of Adak, Alaska · 1865 days ago · 35 km deep · 37 km away
- 1.668 km SW of Adak, Alaska · 1863 days ago · 51 km deep · 81 km away
- 1.610 km SW of Adak, Alaska · 1863 days ago · 81 km deep · 73 km away
- 3.064 km SSW of Adak, Alaska · 1863 days ago · 35 km deep · 52 km away
- 2.687 km S of Adak, Alaska · 1863 days ago · 35 km deep · 43 km away
- 1.915 km NE of Adak, Alaska · 1862 days ago · 151 km deep · 87 km away
- 3.067 km E of Adak, Alaska · 1862 days ago · 71 km deep · 82 km away
- 1.980 km SE of Adak, Alaska · 1862 days ago · 26 km deep · 46 km away
- 2.055 km WSW of Adak, Alaska · 1861 days ago · 75 km deep · 100 km away
- 1.645 km E of Adak, Alaska · 1861 days ago · 68 km deep · 70 km away
The first 60 of 143.
Before
- 1.897 km S of Adak, Alaska · 1884 days ago · 26 km deep · 41 km away
- 1.638 km SW of Adak, Alaska · 1884 days ago · 27 km deep · 70 km away
- 3.054 km ESE of Adak, Alaska · 1884 days ago · 42 km deep · 56 km away
- 1.8Andreanof Islands, Aleutian Islands, Alaska · 1884 days ago · 18 km deep · 99 km away
- 1.666 km SE of Adak, Alaska · 1885 days ago · 26 km deep · 37 km away
- 1.9Andreanof Islands, Aleutian Islands, Alaska · 1885 days ago · 29 km deep · 27 km away
- 1.568 km SSW of Adak, Alaska · 1885 days ago · 42 km deep · 60 km away
- 2.896 km SW of Atka, Alaska · 1885 days ago · 35 km deep · 87 km away
- 3.563 km SE of Adak, Alaska · 1885 days ago · 35 km deep · 27 km away
- 1.519 km WNW of Adak, Alaska · 1885 days ago · 86 km deep · 93 km away
- 2.055 km ENE of Adak, Alaska · 1886 days ago · 179 km deep · 95 km away
- 1.643 km S of Adak, Alaska · 1886 days ago · 26 km deep · 38 km away
- 1.781 km SW of Adak, Alaska · 1886 days ago · 25 km deep · 87 km away
- 1.550 km WSW of Adak, Alaska · 1887 days ago · 74 km deep · 98 km away
- 1.837 km ENE of Adak, Alaska · 1887 days ago · 147 km deep · 93 km away
- 3.044 km SSW of Adak, Alaska · 1887 days ago · 70 km deep · 56 km away
- 1.9100 km SSE of Adak, Alaska · 1887 days ago · 14 km deep · 24 km away
- 1.860 km SE of Adak, Alaska · 1888 days ago · 26 km deep · 40 km away
- 3.035 km S of Adak, Alaska · 1888 days ago · 46 km deep · 44 km away
- 1.715 km E of Adak, AK · 1888 days ago · 76 km deep · 72 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak0219shiapj. Read Sun, Sep 27, 2026, 9:45 PM UTC.