M1.7 earthquake 76 km W of Adak, Alaska
A magnitude 1.7 earthquake struck 76 km W of Adak, Alaska on Tue, Mar 23, 2021, 8:20 AM HADT (17:20 UTC), 13 km (8 mi) below the surface.
A larger quake followed: M4.2 122 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
- 2021-03-23 17:20:49 UTC
- Depth
- 13.1 km (8.1 mi), shallow
- Epicenter
- 51.845° N, 177.740° 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: 112 in the 60 days after this one and 63 in the 30 days before it.
After
- 1.880 km W of Adak, Alaska · 2010 days ago · 9 km deep · 5 km away
- 1.9107 km WSW of Adak, Alaska · 2010 days ago · 7 km deep · 41 km away
- 1.9159 km WSW of Adak, Alaska · 2009 days ago · 19 km deep · 98 km away
- 1.554 km S of Adak, Alaska · 2009 days ago · 25 km deep · 98 km away
- 1.772 km SSW of Adak, Alaska · 2009 days ago · 32 km deep · 74 km away
- 1.7126 km WSW of Adak, Alaska · 2009 days ago · 28 km deep · 56 km away
- 1.872 km SSW of Adak, Alaska · 2009 days ago · 40 km deep · 70 km away
- 1.548 km S of Adak, Alaska · 2007 days ago · 28 km deep · 95 km away
- 1.763 km S of Adak, Alaska · 2007 days ago · 26 km deep · 93 km away
- 3.154 km SSW of Adak, Alaska · 2007 days ago · 51 km deep · 66 km away
- 1.937 km SW of Adak, Alaska · 2007 days ago · 55 km deep · 50 km away
- 3.945 km S of Adak, Alaska · 2004 days ago · 47 km deep · 94 km away
- 2.694 km SW of Adak, Alaska · 2004 days ago · 33 km deep · 57 km away
- 2.047 km WSW of Adak, Alaska · 2004 days ago · 74 km deep · 30 km away
- 1.975 km WSW of Adak, Alaska · 2004 days ago · 30 km deep · 38 km away
- 1.8123 km WSW of Adak, Alaska · 2003 days ago · 7 km deep · 50 km away
- 2.843 km SSE of Adak, Alaska · 2002 days ago · 40 km deep · 97 km away
- 1.762 km SW of Adak, Alaska · 2002 days ago · 36 km deep · 62 km away
- 2.7Andreanof Islands, Aleutian Islands, Alaska · 2001 days ago · 65 km deep · 53 km away
- 2.125 km S of Adak, Alaska · 2001 days ago · 57 km deep · 82 km away
- 2.916 km SSE of Adak, Alaska · 2001 days ago · 64 km deep · 84 km away
- 1.9116 km SW of Adak, Alaska · 2001 days ago · 17 km deep · 72 km away
- 3.0144 km W of Adak, Alaska · 2001 days ago · 183 km deep · 70 km away
- 1.584 km WSW of Adak, Alaska · 1998 days ago · 43 km deep · 31 km away
- 3.1127 km WSW of Adak, Alaska · 1998 days ago · 10 km deep · 57 km away
- 3.2141 km WSW of Adak, Alaska · 1998 days ago · 10 km deep · 72 km away
- 1.680 km WSW of Adak, Alaska · 1997 days ago · 38 km deep · 36 km away
- 2.050 km SW of Adak, Alaska · 1996 days ago · 42 km deep · 61 km away
- 1.739 km SSE of Adak, Alaska · 1996 days ago · 35 km deep · 99 km away
- 2.6137 km SW of Adak, Alaska · 1995 days ago · 10 km deep · 97 km away
- 2.0119 km SW of Adak, Alaska · 1995 days ago · 13 km deep · 73 km away
- 1.9109 km WSW of Adak, Alaska · 1995 days ago · 25 km deep · 44 km away
- 2.565 km SSW of Adak, Alaska · 1995 days ago · 35 km deep · 80 km away
- 2.965 km WSW of Adak, Alaska · 1994 days ago · 82 km deep · 30 km away
- 3.328 km S of Adak, Alaska · 1994 days ago · 69 km deep · 81 km away
- 3.5137 km SW of Adak, Alaska · 1992 days ago · 35 km deep · 89 km away
- 1.998 km SW of Adak, Alaska · 1992 days ago · 22 km deep · 71 km away
- 1.855 km SSW of Adak, Alaska · 1990 days ago · 45 km deep · 83 km away
- 1.743 km SSW of Adak, Alaska · 1990 days ago · 50 km deep · 74 km away
- 1.9102 km WSW of Adak, Alaska · 1989 days ago · 1 km deep · 39 km away
- 1.719 km SW of Adak, Alaska · 1988 days ago · 11 km deep · 63 km away
- 2.753 km SSW of Adak, Alaska · 1987 days ago · 36 km deep · 64 km away
- 2.525 km SE of Adak, Alaska · 1987 days ago · 78 km deep · 95 km away
- 1.7119 km WSW of Adak, Alaska · 1986 days ago · 17 km deep · 55 km away
- 1.633 km SSW of Adak, Alaska · 1986 days ago · 51 km deep · 65 km away
- 1.555 km SSW of Adak, Alaska · 1986 days ago · 19 km deep · 78 km away
- 1.7135 km W of Adak, Alaska · 1986 days ago · 19 km deep · 59 km away
- 1.552 km SSW of Adak, Alaska · 1986 days ago · 36 km deep · 63 km away
- 1.7111 km WSW of Adak, Alaska · 1986 days ago · 17 km deep · 48 km away
- 3.6120 km WSW of Adak, Alaska · 1985 days ago · 10 km deep · 58 km away
- 1.5Andreanof Islands, Aleutian Islands, Alaska · 1985 days ago · 39 km deep · 82 km away
- 1.967 km SSW of Adak, Alaska · 1985 days ago · 44 km deep · 68 km away
- 1.663 km S of Adak, Alaska · 1985 days ago · 25 km deep · 89 km away
- 1.5134 km W of Adak, Alaska · 1984 days ago · 6 km deep · 60 km away
- 1.737 km SSE of Adak, Alaska · 1984 days ago · 57 km deep · 90 km away
- 1.5106 km WSW of Adak, Alaska · 1984 days ago · 13 km deep · 44 km away
- 2.189 km WSW of Adak, Alaska · 1984 days ago · 37 km deep · 39 km away
- 1.6169 km WSW of Adak, Alaska · 1984 days ago · 32 km deep · 96 km away
- 1.790 km WSW of Adak, Alaska · 1984 days ago · 25 km deep · 44 km away
- 1.552 km SW of Adak, Alaska · 1983 days ago · 43 km deep · 60 km away
The first 60 of 112.
Before
- 1.9148 km WSW of Adak, Alaska · 2011 days ago · 30 km deep · 75 km away
- 1.839 km W of Adak, Alaska · 2011 days ago · 76 km deep · 37 km away
- 1.787 km W of Adak, Alaska · 2011 days ago · 5 km deep · 12 km away
- 1.999 km WSW of Adak, Alaska · 2012 days ago · 59 km deep · 35 km away
- 1.867 km SSW of Adak, Alaska · 2012 days ago · 29 km deep · 76 km away
- 2.2151 km WSW of Adak, Alaska · 2012 days ago · 17 km deep · 80 km away
- 3.081 km SW of Adak, Alaska · 2012 days ago · 55 km deep · 54 km away
- 1.6108 km WSW of Adak, Alaska · 2013 days ago · 4 km deep · 45 km away
- 1.7115 km WSW of Adak, Alaska · 2013 days ago · 8 km deep · 51 km away
- 3.0131 km WSW of Adak, Alaska · 2015 days ago · 29 km deep · 71 km away
- 1.959 km WSW of Adak, Alaska · 2015 days ago · 67 km deep · 32 km away
- 1.992 km WSW of Adak, Alaska · 2017 days ago · 71 km deep · 27 km away
- 1.758 km SSW of Adak, Alaska · 2017 days ago · 30 km deep · 66 km away
- 1.9130 km WSW of Adak, Alaska · 2018 days ago · 58 km deep · 57 km away
- 1.555 km SSW of Adak, Alaska · 2018 days ago · 36 km deep · 63 km away
- 1.9133 km WSW of Adak, Alaska · 2018 days ago · 4 km deep · 61 km away
- 1.776 km WSW of Adak, Alaska · 2018 days ago · 13 km deep · 38 km away
- 2.1140 km WSW of Adak, Alaska · 2018 days ago · 21 km deep · 82 km away
- 1.633 km W of Adak, Alaska · 2019 days ago · 10 km deep · 43 km away
- 2.567 km SSW of Adak, Alaska · 2019 days ago · 35 km deep · 82 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak0213rwb7wp (also filed as av91212131). Read Thu, Sep 24, 2026, 3:38 PM UTC.