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Alaska Earthquake History
Since October 9, 1900, the USGS has recorded 5,198 earthquakes of magnitude 4.5 or greater in Alaska, 420 of them magnitude 6 or above. The strongest was M 9.2.
By decade
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Strongest in Alaska
M 9.2 · The 1964 Prince William Sound, Alaska EarthquakeMarch 28, 1964M 8.6 · The 1946 Unimak Island, Alaska EarthquakeApril 1, 1946M 8.2 · 1938 Semidi Islands, Alaska EarthquakeNovember 10, 1938M 8.2 · 2021 Chignik, Alaska EarthquakeJuly 29, 2021M 7.9 · 261 km SE of Chiniak, AlaskaJanuary 23, 2018M 7.9 · 2002 Denali Fault, Alaska EarthquakeNovember 3, 2002M 7.9 · 200 km WSW of Yakutat, AlaskaNovember 30, 1987M 7.9 · Kodiak Island region, AlaskaOctober 9, 1900M 7.8 · 81 km E of Nikolski, AlaskaJuly 2, 1965M 7.8 · 22 km W of Elfin Cove, AlaskaJuly 10, 1958
All recorded earthquakes
M 5.5 mwwMay 2, 2024
96 km SSW of Nikolski, Alaska · depth 14 km
M 4.6 mwrApril 19, 2024
159 km SE of Chignik, Alaska · depth 22 km
M 4.9 mwrApril 10, 2024
189 km E of Atka, Alaska · depth 37 km
M 4.5 mwrApril 10, 2024
148 km S of False Pass, Alaska · depth 18 km
M 4.6 mwrApril 10, 2024
87 km SSW of Unalaska, Alaska · depth 35 km
M 4.6 mwrMarch 22, 2024
156 km ESE of Akutan, Alaska · depth 25 km
M 4.6 mwwMarch 19, 2024
82 km ESE of Yakutat, Alaska · depth 11 km
M 4.6 mwrMarch 6, 2024
151 km S of False Pass, Alaska · depth 9 km
M 4.5 mbMarch 2, 2024
77 km SE of King Cove, Alaska · depth 48 km
M 4.6 mbFebruary 21, 2024
70 km ENE of Port Alsworth, Alaska · depth 148 km
M 4.7 mwrFebruary 14, 2024
57 km N of Petersville, Alaska · depth 116 km
M 4.6 mwrFebruary 12, 2024
147 km WSW of Nikolski, Alaska · depth 50 km
M 5.3 mwwJanuary 19, 2024
4 km SW of Salcha, Alaska · depth 11 km
M 4.5 mwrJanuary 16, 2024
65 km NE of Teller, Alaska · depth 11 km
M 4.6 mbJanuary 15, 2024
59 km SSE of Chignik, Alaska · depth 59 km
M 5.9 mwwJanuary 12, 2024
69 km WNW of Port Alexander, Alaska · depth 11 km
M 4.9 mbJanuary 7, 2024
8 km SE of Seldovia Village, Alaska · depth 46 km
M 4.6 mwrDecember 25, 2023
150 km S of False Pass, Alaska · depth 23 km
M 4.7 mwwDecember 16, 2023
39 km E of Port Alsworth, Alaska · depth 188 km
M 4.8 mwrDecember 4, 2023
186 km SW of Nikolski, Alaska · depth 31 km
M 4.5 mbDecember 2, 2023
154 km S of False Pass, Alaska · depth 35 km
M 5.1 mwwDecember 1, 2023
54 km NNE of Petersville, Alaska · depth 102 km
M 4.5 mbNovember 29, 2023
124 km ESE of Nikolski, Alaska · depth 32 km
M 4.7 mbNovember 28, 2023
136 km ESE of Nikolski, Alaska · depth 10 km
M 5.6 mwwNovember 28, 2023
122 km ESE of Nikolski, Alaska · depth 13 km
M 4.5 mbNovember 24, 2023
186 km SW of Nikolski, Alaska · depth 28 km
M 4.7 mbNovember 17, 2023
Gulf of Alaska · depth 7 km
M 4.5 mbNovember 17, 2023
195 km SSW of Nikolski, Alaska · depth 10 km
M 4.6 mwrNovember 12, 2023
76 km SSE of Akutan, Alaska · depth 35 km
M 4.5 mbNovember 12, 2023
66 km SSE of Akutan, Alaska · depth 48 km
M 4.5 mwrNovember 11, 2023
94 km SSE of Sand Point, Alaska · depth 28 km
M 5.3 mwwOctober 28, 2023
55 km SSW of Covenant Life, Alaska · depth 6 km
M 5.1 mwwOctober 28, 2023
50 km SSW of Covenant Life, Alaska · depth 7 km
M 4.5 mbOctober 20, 2023
87 km SSW of Nikolski, Alaska · depth 21 km
M 5.6 mwwOctober 12, 2023
164 km W of Nikolski, Alaska · depth 120 km
M 4.5 mbOctober 6, 2023
72 km SSW of Nikolski, Alaska · depth 34 km
M 4.6 mwwSeptember 27, 2023
80 km ESE of Saint George, Alaska · depth 9 km
M 4.7 mwwSeptember 27, 2023
40 km S of Sand Point, Alaska · depth 53 km
M 5.0 mbSeptember 24, 2023
172 km ENE of Atka, Alaska · depth 109 km
M 5.0 mwwSeptember 22, 2023
48 km S of Sand Point, Alaska · depth 43 km
Source: U.S. Geological Survey, Earthquake Hazards Program. Older and smaller earthquakes are under-counted relative to recent decades as instrumentation improved. A record of past shaking is not a forecast. See About the Data.