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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 5.2 mwwFebruary 6, 2022
72 km S of Cantwell, Alaska · depth 62 km
M 4.5 mwrFebruary 5, 2022
Unimak Island region, Alaska · depth 19 km
M 5.4 mwwFebruary 3, 2022
99 km SSE of King Cove, Alaska · depth 31 km
M 4.9 mbFebruary 3, 2022
275 km SE of Chiniak, Alaska · depth 10 km
M 4.6 mbFebruary 2, 2022
79 km S of Unalaska, Alaska · depth 35 km
M 4.6 mbJanuary 29, 2022
117 km ESE of Akutan, Alaska · depth 35 km
M 4.5 mbJanuary 29, 2022
122 km ESE of Akutan, Alaska · depth 35 km
M 4.8 mbJanuary 29, 2022
120 km ESE of Akutan, Alaska · depth 35 km
M 4.7 mwwJanuary 24, 2022
Fox Islands, Aleutian Islands, Alaska · depth 44 km
M 4.6 mbJanuary 23, 2022
83 km S of Unalaska, Alaska · depth 39 km
M 4.6 mlJanuary 22, 2022
75 km SSW of Unalaska, Alaska · depth 35 km
M 6.2 mwwJanuary 22, 2022
71 km S of Unalaska, Alaska · depth 29 km
M 5.1 mwwJanuary 21, 2022
48 km NW of Ninilchik, Alaska · depth 115 km
M 4.6 mbJanuary 20, 2022
120 km W of Nikolski, Alaska · depth 121 km
M 4.5 mlJanuary 14, 2022
56 km SSW of Pelican, Alaska · depth 14 km
M 4.6 mwrJanuary 12, 2022
92 km SE of Nikolski, Alaska · depth 17 km
M 4.7 mbJanuary 12, 2022
Fox Islands, Aleutian Islands, Alaska · depth 6 km
M 4.6 mbJanuary 11, 2022
96 km SE of Nikolski, Alaska · depth 10 km
M 4.9 mbJanuary 11, 2022
95 km SE of Nikolski, Alaska · depth 10 km
M 4.8 mbJanuary 11, 2022
92 km SE of Nikolski, Alaska · depth 10 km
M 4.7 mbJanuary 11, 2022
81 km SE of Nikolski, Alaska · depth 10 km
M 4.7 mbJanuary 11, 2022
75 km SE of Nikolski, Alaska · depth 20 km
M 5.3 mbJanuary 11, 2022
95 km SE of Nikolski, Alaska · depth 15 km
M 5.8 mwwJanuary 11, 2022
82 km SE of Nikolski, Alaska · depth 17 km
M 4.7 mbJanuary 11, 2022
81 km SE of Nikolski, Alaska · depth 25 km
M 6.6 mwwJanuary 11, 2022
53 km SE of Nikolski, Alaska · depth 19 km
M 4.7 mbJanuary 11, 2022
81 km SE of Nikolski, Alaska · depth 9 km
M 4.7 mbJanuary 11, 2022
93 km SE of Nikolski, Alaska · depth 22 km
M 5.4 mbJanuary 11, 2022
88 km SE of Nikolski, Alaska · depth 17 km
M 4.6 mbJanuary 11, 2022
53 km ESE of Nikolski, Alaska · depth 26 km
M 4.8 mbJanuary 11, 2022
83 km SE of Nikolski, Alaska · depth 17 km
M 4.5 mbJanuary 11, 2022
91 km SE of Nikolski, Alaska · depth 10 km
M 6.8 mwwJanuary 11, 2022
100 km SE of Nikolski, Alaska · depth 20 km
M 4.8 mbJanuary 11, 2022
171 km W of Nikolski, Alaska · depth 122 km
M 4.6 mlJanuary 11, 2022
71 km NNE of Aleneva, Alaska · depth 2 km
M 5.2 mwwJanuary 8, 2022
104 km NNW of Yakutat, Alaska · depth 38 km
M 5.0 mlDecember 30, 2021
47 km SW of Karluk, Alaska · depth 59 km
M 5.9 mwwDecember 21, 2021
58 km E of Port Alsworth, Alaska · depth 151 km
M 4.7 mlDecember 18, 2021
19 km ENE of Pedro Bay, Alaska · depth 163 km
M 4.5 mbDecember 12, 2021
74 km SE of Akutan, Alaska · depth 47 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.