M1.9 earthquake 91 km ESE of Adak, Alaska
A magnitude 1.9 earthquake struck 91 km ESE of Adak, Alaska on Fri, Feb 19, 2021, 5:06 PM HAST (03:06 UTC), 25 km (15 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
- 2021-02-20 03:06:07 UTC
- Depth
- 24.6 km (15.3 mi), shallow
- Epicenter
- 51.572° N, 175.395° 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: 146 in the 60 days after this one and 74 in the 30 days before it.
After
- 1.797 km ESE of Adak, Alaska · 2044 days ago · 29 km deep · 6 km away
- 1.519 km SW of Adak, Alaska · 2044 days ago · 73 km deep · 99 km away
- 1.973 km SSW of Atka, Alaska · 2044 days ago · 14 km deep · 67 km away
- 1.864 km SSE of Adak, Alaska · 2044 days ago · 22 km deep · 68 km away
- 1.877 km ESE of Adak, Alaska · 2043 days ago · 27 km deep · 21 km away
- 1.874 km SE of Adak, Alaska · 2043 days ago · 18 km deep · 39 km away
- 2.772 km SSE of Adak, Alaska · 2042 days ago · 35 km deep · 55 km away
- 2.7105 km ESE of Adak, Alaska · 2042 days ago · 33 km deep · 15 km away
- 2.872 km SE of Adak, Alaska · 2042 days ago · 31 km deep · 49 km away
- 1.961 km SE of Adak, Alaska · 2042 days ago · 23 km deep · 46 km away
- 1.835 km SSE of Adak, Alaska · 2041 days ago · 49 km deep · 79 km away
- 2.098 km ESE of Adak, Alaska · 2041 days ago · 37 km deep · 7 km away
- 3.362 km WSW of Atka, Alaska · 2041 days ago · 69 km deep · 54 km away
- 3.161 km ESE of Adak, Alaska · 2039 days ago · 35 km deep · 34 km away
- 1.936 km ESE of Adak, Alaska · 2038 days ago · 71 km deep · 56 km away
- 1.896 km SW of Atka, Alaska · 2038 days ago · 30 km deep · 16 km away
- 2.2128 km S of Atka, Alaska · 2038 days ago · 7 km deep · 98 km away
- 2.330 km S of Atka, Alaska · 2038 days ago · 159 km deep · 93 km away
- 1.648 km S of Atka, Alaska · 2037 days ago · 56 km deep · 83 km away
- 2.067 km SE of Adak, Alaska · 2037 days ago · 26 km deep · 43 km away
- 1.761 km SE of Adak, Alaska · 2037 days ago · 13 km deep · 49 km away
- 1.754 km S of Adak, Alaska · 2037 days ago · 22 km deep · 81 km away
- 1.993 km ESE of Adak, Alaska · 2036 days ago · 26 km deep · 13 km away
- 1.546 km SSE of Adak, Alaska · 2036 days ago · 28 km deep · 66 km away
- 4.266 km SSW of Atka, Alaska · 2035 days ago · 63 km deep · 53 km away
- 2.986 km SE of Adak, Alaska · 2034 days ago · 35 km deep · 26 km away
- 1.758 km SE of Adak, Alaska · 2033 days ago · 32 km deep · 41 km away
- 4.461 km WSW of Atka, Alaska · 2033 days ago · 67 km deep · 48 km away · felt by 1
- 3.860 km S of Atka, Alaska · 2032 days ago · 10 km deep · 86 km away
- 2.773 km SW of Atka, Alaska · 2031 days ago · 35 km deep · 37 km away
- 2.537 km NE of Adak, Alaska · 2030 days ago · 110 km deep · 88 km away
- 1.682 km SE of Adak, Alaska · 2030 days ago · 25 km deep · 24 km away
- 2.425 km S of Atka, Alaska · 2029 days ago · 97 km deep · 98 km away
- 3.142 km SSE of Atka, Alaska · 2029 days ago · 27 km deep · 100 km away
- 1.9Andreanof Islands, Aleutian Islands, Alaska · 2029 days ago · 20 km deep · 27 km away
- 1.7Andreanof Islands, Aleutian Islands, Alaska · 2028 days ago · 23 km deep · 53 km away
- 1.762 km SE of Adak, Alaska · 2028 days ago · 21 km deep · 52 km away
- 2.853 km SSE of Atka, Alaska · 2027 days ago · 159 km deep · 96 km away
- 1.972 km ESE of Adak, Alaska · 2027 days ago · 51 km deep · 25 km away
- 3.181 km SSW of Atka, Alaska · 2026 days ago · 35 km deep · 52 km away
- 2.867 km SE of Adak, Alaska · 2026 days ago · 30 km deep · 46 km away
- 1.556 km E of Adak, Alaska · 2026 days ago · 47 km deep · 38 km away
- 1.859 km SSW of Atka, Alaska · 2025 days ago · 15 km deep · 56 km away
- 1.845 km E of Adak, Alaska · 2025 days ago · 97 km deep · 56 km away
- 2.00 km E of Adak, Alaska · 2024 days ago · 98 km deep · 91 km away
- 2.783 km S of Atka, Alaska · 2023 days ago · 69 km deep · 81 km away
- 1.551 km SE of Adak, Alaska · 2023 days ago · 25 km deep · 56 km away
- 1.938 km SSW of Atka, Alaska · 2022 days ago · 57 km deep · 75 km away
- 4.033 km S of Atka, Alaska · 2021 days ago · 23 km deep · 90 km away
- 2.792 km SW of Atka, Alaska · 2021 days ago · 34 km deep · 16 km away
- 1.983 km SW of Atka, Alaska · 2020 days ago · 26 km deep · 35 km away
- 2.1100 km ESE of Adak, Alaska · 2020 days ago · 26 km deep · 9 km away
- 2.087 km ESE of Adak, Alaska · 2019 days ago · 36 km deep · 4 km away
- 1.951 km E of Adak, Alaska · 2019 days ago · 131 km deep · 45 km away
- 1.689 km SW of Atka, Alaska · 2019 days ago · 26 km deep · 18 km away
- 4.737 km SSW of Atka, Alaska · 2019 days ago · 65 km deep · 79 km away
- 2.043 km SSW of Atka, Alaska · 2018 days ago · 47 km deep · 76 km away
- 1.565 km SE of Adak, Alaska · 2018 days ago · 13 km deep · 51 km away
- 1.872 km SW of Atka, Alaska · 2017 days ago · 25 km deep · 38 km away
- 2.6100 km ESE of Adak, Alaska · 2017 days ago · 28 km deep · 9 km away
The first 60 of 146.
Before
- 3.075 km SSE of Adak, Alaska · 2045 days ago · 35 km deep · 54 km away
- 2.059 km SE of Adak, Alaska · 2045 days ago · 41 km deep · 50 km away
- 1.824 km W of Atka, Alaska · 2045 days ago · 25 km deep · 90 km away
- 1.884 km S of Atka, Alaska · 2046 days ago · 3 km deep · 78 km away
- 1.694 km SW of Atka, Alaska · 2046 days ago · 20 km deep · 22 km away
- 1.766 km SSE of Adak, Alaska · 2046 days ago · 14 km deep · 76 km away
- 1.945 km SSE of Adak, Alaska · 2047 days ago · 48 km deep · 73 km away
- 2.860 km WSW of Atka, Alaska · 2047 days ago · 67 km deep · 49 km away
- 2.2162 km SE of Adak, Alaska · 2047 days ago · 5 km deep · 91 km away
- 3.7100 km SW of Atka, Alaska · 2047 days ago · 40 km deep · 19 km away
- 2.656 km S of Adak, Alaska · 2048 days ago · 35 km deep · 87 km away
- 1.931 km S of Atka, Alaska · 2048 days ago · 58 km deep · 92 km away
- 3.176 km SSW of Atka, Alaska · 2053 days ago · 35 km deep · 41 km away
- 1.847 km SSW of Atka, Alaska · 2054 days ago · 44 km deep · 65 km away
- 2.0102 km SSW of Atka, Alaska · 2054 days ago · 25 km deep · 44 km away
- 1.517 km SSW of Atka, Alaska · 2054 days ago · 12 km deep · 92 km away
- 3.498 km S of Atka, Alaska · 2055 days ago · 10 km deep · 85 km away
- 2.175 km SSE of Adak, Alaska · 2055 days ago · 26 km deep · 71 km away
- 2.148 km ESE of Adak, Alaska · 2055 days ago · 73 km deep · 45 km away
- 1.543 km S of Adak, Alaska · 2056 days ago · 30 km deep · 91 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak0212ce8au6. Read Sat, Sep 26, 2026, 6:00 AM UTC.