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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 4.5 mwrOctober 28, 2018
84 km S of False Pass, Alaska · depth 39 km
M 5.1 mwOctober 27, 2018
24 km ENE of Tanana, Alaska · depth 15 km
M 4.8 mwwOctober 27, 2018
218 km SE of Chiniak, Alaska · depth 10 km
M 4.9 mlOctober 24, 2018
69 km SSW of Hooper Bay, Alaska · depth 3 km
M 4.5 mlOctober 15, 2018
28 km S of Susitna, Alaska · depth 72 km
M 5.0 mwOctober 14, 2018
98 km NE of Ambler, Alaska · depth 11 km
M 4.7 mbOctober 12, 2018
68 km NNE of Akutan, Alaska · depth 163 km
M 4.8 mbOctober 11, 2018
72 km SSE of Nikolski, Alaska · depth 40 km
M 5.0 mwOctober 10, 2018
34 km SSE of Perryville, Alaska · depth 48 km
M 4.6 mbOctober 3, 2018
24 km NE of Nikolski, Alaska · depth 75 km
M 4.8 mlSeptember 18, 2018
79 km SW of Kaktovik, Alaska · depth 5 km
M 5.1 mwSeptember 18, 2018
66 km SSW of Kaktovik, Alaska · depth 17 km
M 4.9 mbSeptember 16, 2018
250 km SE of Chiniak, Alaska · depth 20 km
M 4.5 mwSeptember 1, 2018
79 km SW of Kaktovik, Alaska · depth 19 km
M 4.7 mbAugust 31, 2018
46 km W of Nikolski, Alaska · depth 7 km
M 4.7 mlAugust 28, 2018
19 km N of Manley Hot Springs, Alaska · depth 17 km
M 4.7 mwrAugust 25, 2018
283 km SE of Chiniak, Alaska · depth 6 km
M 5.9 mwwAugust 25, 2018
180 km WSW of Nikolski, Alaska · depth 23 km
M 4.5 mlAugust 23, 2018
75 km SSW of Kaktovik, Alaska · depth 12 km
M 4.5 mlAugust 20, 2018
86 km SW of Kaktovik, Alaska · depth 10 km
M 4.5 mlAugust 18, 2018
76 km SSW of Kaktovik, Alaska · depth 16 km
M 4.5 mlAugust 16, 2018
78 km SSW of Kaktovik, Alaska · depth 7 km
M 4.5 mlAugust 14, 2018
76 km SW of Kaktovik, Alaska · depth 14 km
M 4.9 mwAugust 13, 2018
72 km SSW of Kaktovik, Alaska · depth 17 km
M 4.5 mlAugust 13, 2018
80 km SSW of Kaktovik, Alaska · depth 7 km
M 4.5 mlAugust 13, 2018
79 km SSW of Kaktovik, Alaska · depth 11 km
M 4.5 mlAugust 12, 2018
74 km SSW of Kaktovik, Alaska · depth 16 km
M 4.5 mlAugust 12, 2018
76 km SSW of Kaktovik, Alaska · depth 12 km
M 5.0 mwAugust 12, 2018
80 km SSW of Kaktovik, Alaska · depth 16 km
M 6.0 mwAugust 12, 2018
73 km SSW of Kaktovik, Alaska · depth 16 km
M 5.1 mlAugust 12, 2018
77 km SSW of Kaktovik, Alaska · depth 18 km
M 5.3 mwAugust 12, 2018
81 km SW of Kaktovik, Alaska · depth 18 km
M 4.8 mlAugust 12, 2018
82 km SSW of Kaktovik, Alaska · depth 10 km
M 5.0 mlAugust 12, 2018
77 km SW of Kaktovik, Alaska · depth 13 km
M 4.9 mlAugust 12, 2018
80 km SSW of Kaktovik, Alaska · depth 4 km
M 6.4 mwAugust 12, 2018
89 km SW of Kaktovik, Alaska · depth 16 km
M 4.5 mlJuly 24, 2018
134 km SE of Perryville, Alaska · depth 26 km
M 5.3 mwwJuly 21, 2018
102 km S of Sand Point, Alaska · depth 10 km
M 4.5 mbJuly 19, 2018
109 km SSW of Sand Point, Alaska · depth 10 km
M 5.8 mwwJuly 19, 2018
101 km S of Sand Point, Alaska · depth 21 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.