M1.7 earthquake 48 km E of Adak, Alaska
A magnitude 1.7 earthquake struck 48 km E of Adak, Alaska on Mon, Aug 30, 2021, 8:38 AM HADT (17:38 UTC), 149 km (92 mi) below the surface.
A larger quake followed: M4.7 49 km NE 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
- 2021-08-30 17:38:21 UTC
- Depth
- 148.6 km (92.3 mi), intermediate-depth
- Epicenter
- 51.825° N, 175.932° 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
- 24
Nearby
Within 100 km, magnitude 1.5 and up: 112 in the 60 days after this one and 87 in the 30 days before it.
After
- 2.717 km SE of Adak, Alaska · 1853 days ago · 112 km deep · 40 km away
- 3.684 km E of Adak, Alaska · 1853 days ago · 64 km deep · 36 km away
- 1.676 km ESE of Adak, Alaska · 1853 days ago · 19 km deep · 29 km away
- 3.246 km ENE of Adak, Alaska · 1851 days ago · 137 km deep · 26 km away
- 3.262 km SE of Adak, Alaska · 1851 days ago · 26 km deep · 48 km away
- 2.958 km E of Adak, Alaska · 1851 days ago · 156 km deep · 19 km away
- 1.641 km SSE of Adak, Alaska · 1851 days ago · 34 km deep · 43 km away
- 1.652 km ENE of Adak, Alaska · 1851 days ago · 148 km deep · 20 km away
- 1.512 km SE of Adak, Alaska · 1851 days ago · 153 km deep · 39 km away
- 1.558 km SE of Adak, Alaska · 1850 days ago · 48 km deep · 35 km away
- 1.710 km SSE of Adak, Alaska · 1850 days ago · 156 km deep · 45 km away
- 1.992 km SSE of Adak, Alaska · 1849 days ago · 14 km deep · 84 km away
- 1.560 km SE of Adak, Alaska · 1849 days ago · 27 km deep · 35 km away
- 2.588 km ESE of Adak, Alaska · 1848 days ago · 58 km deep · 41 km away
- 1.933 km ESE of Adak, Alaska · 1848 days ago · 61 km deep · 22 km away
- 1.570 km SSE of Adak, Alaska · 1848 days ago · 18 km deep · 63 km away
- 1.951 km ENE of Adak, Alaska · 1848 days ago · 163 km deep · 28 km away
- 1.674 km ENE of Adak, Alaska · 1847 days ago · 149 km deep · 35 km away
- 1.561 km W of Atka, Alaska · 1846 days ago · 13 km deep · 66 km away
- 3.367 km ESE of Adak, Alaska · 1846 days ago · 39 km deep · 32 km away
- 1.774 km ENE of Adak, Alaska · 1846 days ago · 137 km deep · 35 km away
- 1.960 km ENE of Adak, Alaska · 1846 days ago · 150 km deep · 30 km away
- 1.663 km SSE of Adak, Alaska · 1846 days ago · 19 km deep · 54 km away
- 1.962 km SE of Adak, Alaska · 1845 days ago · 26 km deep · 44 km away
- 1.649 km SW of Adak, Alaska · 1845 days ago · 44 km deep · 87 km away
- 2.278 km ENE of Adak, Alaska · 1845 days ago · 236 km deep · 41 km away
- 1.739 km NE of Adak, Alaska · 1844 days ago · 132 km deep · 37 km away
- 1.972 km SSW of Atka, Alaska · 1844 days ago · 22 km deep · 88 km away
- 1.651 km E of Adak, Alaska · 1844 days ago · 93 km deep · 14 km away
- 3.689 km SW of Atka, Alaska · 1843 days ago · 35 km deep · 66 km away
- 3.7101 km ESE of Adak, Alaska · 1842 days ago · 35 km deep · 59 km away
- 2.957 km SSE of Adak, Alaska · 1840 days ago · 35 km deep · 46 km away
- 1.553 km SW of Adak, Alaska · 1839 days ago · 46 km deep · 91 km away
- 1.756 km SE of Adak, Alaska · 1838 days ago · 13 km deep · 44 km away
- 1.660 km SE of Adak, Alaska · 1838 days ago · 13 km deep · 46 km away
- 3.224 km SSW of Adak, Alaska · 1835 days ago · 77 km deep · 57 km away
- 1.644 km SSW of Adak, Alaska · 1833 days ago · 36 km deep · 69 km away
- 1.777 km SE of Adak, Alaska · 1833 days ago · 23 km deep · 42 km away
- 1.541 km SSE of Adak, Alaska · 1833 days ago · 36 km deep · 43 km away
- 1.557 km ESE of Adak, Alaska · 1833 days ago · 44 km deep · 19 km away
- 1.883 km E of Adak, Alaska · 1833 days ago · 64 km deep · 35 km away
- 1.561 km ESE of Adak, Alaska · 1832 days ago · 44 km deep · 18 km away
- 2.970 km NE of Adak, Alaska · 1832 days ago · 228 km deep · 63 km away
- 1.9Andreanof Islands, Aleutian Islands, Alaska · 1832 days ago · 36 km deep · 64 km away
- 2.182 km ENE of Adak, Alaska · 1832 days ago · 90 km deep · 45 km away
- 2.753 km SE of Adak, Alaska · 1830 days ago · 35 km deep · 40 km away
- 1.559 km SE of Adak, Alaska · 1830 days ago · 26 km deep · 35 km away
- 1.762 km SE of Adak, Alaska · 1830 days ago · 43 km deep · 36 km away
- 1.664 km SSW of Atka, Alaska · 1829 days ago · 21 km deep · 98 km away
- 1.579 km S of Adak, Alaska · 1829 days ago · 26 km deep · 81 km away
- 1.945 km NE of Adak, Alaska · 1829 days ago · 135 km deep · 41 km away
- 2.032 km E of Adak, Alaska · 1828 days ago · 75 km deep · 16 km away
- 1.619 km SSW of Adak, Alaska · 1828 days ago · 75 km deep · 58 km away
- 1.543 km S of Adak, Alaska · 1828 days ago · 43 km deep · 62 km away
- 1.876 km ESE of Adak, Alaska · 1827 days ago · 20 km deep · 34 km away
- 2.861 km SE of Adak, Alaska · 1826 days ago · 35 km deep · 46 km away
- 1.653 km SE of Adak, Alaska · 1825 days ago · 32 km deep · 31 km away
- 1.663 km SSW of Adak, Alaska · 1825 days ago · 20 km deep · 93 km away
- 1.861 km SE of Adak, Alaska · 1824 days ago · 23 km deep · 38 km away
- 3.837 km ENE of Adak, Alaska · 1822 days ago · 128 km deep · 21 km away
The first 60 of 112.
Before
- 1.846 km NNW of Adak, Alaska · 1854 days ago · 138 km deep · 86 km away
- 1.658 km SE of Adak, Alaska · 1854 days ago · 33 km deep · 33 km away
- 1.772 km WSW of Atka, Alaska · 1854 days ago · 122 km deep · 54 km away
- 1.758 km SSE of Adak, Alaska · 1855 days ago · 24 km deep · 57 km away
- 1.578 km W of Atka, Alaska · 1855 days ago · 110 km deep · 51 km away
- 1.689 km SE of Adak, Alaska · 1855 days ago · 26 km deep · 53 km away
- 1.942 km NE of Adak, Alaska · 1855 days ago · 189 km deep · 39 km away
- 3.534 km S of Adak, Alaska · 1855 days ago · 46 km deep · 52 km away
- 1.543 km SW of Adak, Alaska · 1856 days ago · 64 km deep · 84 km away
- 1.796 km ESE of Adak, Alaska · 1857 days ago · 29 km deep · 49 km away
- 1.773 km WSW of Atka, Alaska · 1857 days ago · 73 km deep · 52 km away
- 2.062 km SSW of Adak, Alaska · 1857 days ago · 29 km deep · 93 km away
- 1.665 km SSW of Adak, Alaska · 1857 days ago · 48 km deep · 97 km away
- 1.6Andreanof Islands, Aleutian Islands, Alaska · 1857 days ago · 15 km deep · 93 km away
- 1.662 km SE of Adak, Alaska · 1857 days ago · 26 km deep · 46 km away
- 1.829 km SSE of Adak, Alaska · 1858 days ago · 45 km deep · 42 km away
- 3.668 km ESE of Adak, Alaska · 1858 days ago · 35 km deep · 31 km away
- 1.675 km SE of Adak, Alaska · 1858 days ago · 18 km deep · 44 km away
- 1.871 km E of Adak, Alaska · 1858 days ago · 149 km deep · 24 km away
- 2.8Andreanof Islands, Aleutian Islands, Alaska · 1859 days ago · 219 km deep · 96 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak021b4iejp1. Read Sat, Sep 26, 2026, 11:39 PM UTC.