M1.9 earthquake 93 km ESE of Adak, Alaska
A magnitude 1.9 earthquake struck 93 km ESE of Adak, Alaska on Sat, Feb 27, 2021, 4:13 PM HAST (02:13 UTC), 26 km (16 mi) below the surface.
A larger quake followed: M4.7 37 km SSW 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
- 1.9 (ml), micro
- Local time
- UTC
- 2021-02-28 02:13:09 UTC
- Depth
- 25.6 km (15.9 mi), shallow
- Epicenter
- 51.458° N, 175.452° 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
- 25
Nearby
Within 100 km, magnitude 1.5 and up: 144 in the 60 days after this one and 69 in the 30 days before it.
After
- 1.546 km SSE of Adak, Alaska · 2036 days ago · 28 km deep · 62 km away
- 4.266 km SSW of Atka, Alaska · 2035 days ago · 63 km deep · 60 km away
- 2.986 km SE of Adak, Alaska · 2034 days ago · 35 km deep · 15 km away
- 1.758 km SE of Adak, Alaska · 2034 days ago · 32 km deep · 38 km away
- 4.461 km WSW of Atka, Alaska · 2033 days ago · 67 km deep · 60 km away · felt by 1
- 3.860 km S of Atka, Alaska · 2032 days ago · 10 km deep · 92 km away
- 2.773 km SW of Atka, Alaska · 2032 days ago · 35 km deep · 47 km away
- 2.537 km NE of Adak, Alaska · 2031 days ago · 110 km deep · 95 km away
- 1.682 km SE of Adak, Alaska · 2030 days ago · 25 km deep · 15 km away
- 1.9Andreanof Islands, Aleutian Islands, Alaska · 2030 days ago · 20 km deep · 20 km away
- 1.7Andreanof Islands, Aleutian Islands, Alaska · 2028 days ago · 23 km deep · 47 km away
- 1.762 km SE of Adak, Alaska · 2028 days ago · 21 km deep · 45 km away
- 1.972 km ESE of Adak, Alaska · 2027 days ago · 51 km deep · 22 km away
- 3.181 km SSW of Atka, Alaska · 2027 days ago · 35 km deep · 56 km away
- 2.867 km SE of Adak, Alaska · 2026 days ago · 30 km deep · 39 km away
- 1.556 km E of Adak, Alaska · 2026 days ago · 47 km deep · 44 km away
- 1.859 km SSW of Atka, Alaska · 2025 days ago · 15 km deep · 65 km away
- 1.845 km E of Adak, Alaska · 2025 days ago · 97 km deep · 63 km away
- 2.00 km E of Adak, Alaska · 2024 days ago · 98 km deep · 93 km away
- 1.853 km SSW of Adak, Alaska · 2024 days ago · 24 km deep · 99 km away
- 2.783 km S of Atka, Alaska · 2023 days ago · 69 km deep · 84 km away
- 1.551 km SE of Adak, Alaska · 2023 days ago · 25 km deep · 51 km away
- 1.938 km SSW of Atka, Alaska · 2023 days ago · 57 km deep · 85 km away
- 4.033 km S of Atka, Alaska · 2021 days ago · 23 km deep · 99 km away
- 2.792 km SW of Atka, Alaska · 2021 days ago · 34 km deep · 28 km away
- 1.983 km SW of Atka, Alaska · 2021 days ago · 26 km deep · 41 km away
- 2.1100 km ESE of Adak, Alaska · 2021 days ago · 26 km deep · 13 km away
- 2.087 km ESE of Adak, Alaska · 2020 days ago · 36 km deep · 14 km away
- 1.951 km E of Adak, Alaska · 2020 days ago · 131 km deep · 52 km away
- 1.689 km SW of Atka, Alaska · 2020 days ago · 26 km deep · 29 km away
- 4.737 km SSW of Atka, Alaska · 2019 days ago · 65 km deep · 89 km away
- 2.043 km SSW of Atka, Alaska · 2019 days ago · 47 km deep · 85 km away
- 1.565 km SE of Adak, Alaska · 2018 days ago · 13 km deep · 44 km away
- 1.872 km SW of Atka, Alaska · 2017 days ago · 25 km deep · 47 km away
- 2.6100 km ESE of Adak, Alaska · 2017 days ago · 28 km deep · 16 km away
- 2.5104 km ESE of Adak, Alaska · 2017 days ago · 35 km deep · 13 km away
- 3.192 km SE of Adak, Alaska · 2017 days ago · 32 km deep · 10 km away
- 1.853 km SSW of Atka, Alaska · 2015 days ago · 8 km deep · 72 km away
- 2.982 km SW of Atka, Alaska · 2015 days ago · 35 km deep · 37 km away
- 2.3175 km SE of Adak, Alaska · 2015 days ago · 26 km deep · 97 km away
- 2.043 km SW of Atka, Alaska · 2015 days ago · 96 km deep · 75 km away
- 1.958 km E of Adak, Alaska · 2014 days ago · 79 km deep · 49 km away
- 1.637 km ESE of Adak, Alaska · 2014 days ago · 66 km deep · 56 km away
- 2.3101 km SE of Adak, Alaska · 2012 days ago · 4 km deep · 18 km away
- 1.554 km S of Adak, Alaska · 2011 days ago · 25 km deep · 74 km away
- 2.935 km SSW of Atka, Alaska · 2010 days ago · 111 km deep · 85 km away
- 1.983 km S of Atka, Alaska · 2009 days ago · 1 km deep · 79 km away
- 1.548 km S of Adak, Alaska · 2009 days ago · 28 km deep · 74 km away
- 2.885 km WSW of Atka, Alaska · 2009 days ago · 63 km deep · 38 km away
- 2.6102 km SW of Atka, Alaska · 2009 days ago · 25 km deep · 19 km away
- 1.763 km S of Adak, Alaska · 2009 days ago · 26 km deep · 89 km away
- 2.045 km SE of Adak, Alaska · 2007 days ago · 46 km deep · 51 km away
- 2.1Andreanof Islands, Aleutian Islands, Alaska · 2006 days ago · 15 km deep · 36 km away
- 3.945 km S of Adak, Alaska · 2006 days ago · 47 km deep · 74 km away
- 3.7131 km SSW of Atka, Alaska · 2006 days ago · 24 km deep · 51 km away
- 2.6127 km SSW of Atka, Alaska · 2006 days ago · 27 km deep · 45 km away
- 2.9Andreanof Islands, Aleutian Islands, Alaska · 2006 days ago · 16 km deep · 48 km away
- 2.051 km E of Adak, Alaska · 2006 days ago · 104 km deep · 64 km away
- 1.980 km ESE of Adak, Alaska · 2005 days ago · 46 km deep · 13 km away
- 1.875 km SW of Atka, Alaska · 2005 days ago · 42 km deep · 46 km away
The first 60 of 144.
Before
- 1.754 km S of Adak, Alaska · 2037 days ago · 22 km deep · 75 km away
- 1.761 km SE of Adak, Alaska · 2037 days ago · 13 km deep · 43 km away
- 2.067 km SE of Adak, Alaska · 2037 days ago · 26 km deep · 36 km away
- 1.648 km S of Atka, Alaska · 2038 days ago · 56 km deep · 91 km away
- 2.2128 km S of Atka, Alaska · 2038 days ago · 7 km deep · 94 km away
- 1.896 km SW of Atka, Alaska · 2038 days ago · 30 km deep · 23 km away
- 1.936 km ESE of Adak, Alaska · 2039 days ago · 71 km deep · 59 km away
- 3.161 km ESE of Adak, Alaska · 2039 days ago · 35 km deep · 32 km away
- 3.362 km WSW of Atka, Alaska · 2041 days ago · 69 km deep · 67 km away
- 2.098 km ESE of Adak, Alaska · 2042 days ago · 37 km deep · 18 km away
- 1.835 km SSE of Adak, Alaska · 2042 days ago · 49 km deep · 76 km away
- 1.961 km SE of Adak, Alaska · 2042 days ago · 23 km deep · 41 km away
- 2.872 km SE of Adak, Alaska · 2043 days ago · 31 km deep · 40 km away
- 2.7105 km ESE of Adak, Alaska · 2043 days ago · 33 km deep · 14 km away
- 2.772 km SSE of Adak, Alaska · 2043 days ago · 35 km deep · 46 km away
- 1.874 km SE of Adak, Alaska · 2043 days ago · 18 km deep · 30 km away
- 1.877 km ESE of Adak, Alaska · 2043 days ago · 27 km deep · 17 km away
- 1.864 km SSE of Adak, Alaska · 2044 days ago · 22 km deep · 60 km away
- 1.973 km SSW of Atka, Alaska · 2044 days ago · 14 km deep · 72 km away
- 1.519 km SW of Adak, Alaska · 2044 days ago · 73 km deep · 98 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak0212plz5np. Read Sat, Sep 26, 2026, 3:39 PM UTC.