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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 4.7 mbJuly 14, 1976
108 km SSE of False Pass, Alaska · depth 33 km
M 4.6 mbJuly 12, 1976
40 km N of Petersville, Alaska · depth 128 km
M 4.5 mbJuly 11, 1976
53 km ESE of Denali National Park, Alaska · depth 133 km
M 4.7 mbJuly 2, 1976
138 km SE of McCarthy, Alaska · depth 27 km
M 4.8 mbJune 24, 1976
26 km E of Skwentna, Alaska · depth 73 km
M 5.2 mbJune 17, 1976
17 km SSE of Karluk, Alaska · depth 50 km
M 5.1 msJune 14, 1976
204 km ESE of Atka, Alaska · depth 10 km
M 4.5 mbJune 14, 1976
190 km ESE of Atka, Alaska · depth 48 km
M 4.5 mbJune 8, 1976
105 km S of False Pass, Alaska · depth 49 km
M 4.8 mbMay 27, 1976
82 km SSW of False Pass, Alaska · depth 15 km
M 4.5 mbMay 26, 1976
25 km WSW of Aleneva, Alaska · depth 33 km
M 4.7 mbMay 9, 1976
58 km E of Pedro Bay, Alaska · depth 38 km
M 4.7 mbMay 3, 1976
62 km SSE of Kokhanok, Alaska · depth 142 km
M 4.8 mbApril 20, 1976
108 km NNW of Yakutat, Alaska · depth 33 km
M 5.5 msApril 20, 1976
69 km SSE of Akutan, Alaska · depth 46 km
M 5.2 mbApril 12, 1976
107 km SW of Nikolski, Alaska · depth 38 km
M 4.8 mbApril 4, 1976
88 km SSW of Nikolski, Alaska · depth 15 km
M 4.5 mbApril 4, 1976
109 km SSW of Nikolski, Alaska · depth 24 km
M 4.5 mbApril 4, 1976
94 km SSW of Nikolski, Alaska · depth 37 km
M 4.6 mbApril 3, 1976
90 km SSW of Nikolski, Alaska · depth 33 km
M 5.0 msApril 3, 1976
101 km SSW of Nikolski, Alaska · depth 22 km
M 4.9 mbApril 3, 1976
83 km SW of Nikolski, Alaska · depth 33 km
M 4.8 mbApril 2, 1976
97 km SSW of Nikolski, Alaska · depth 34 km
M 5.2 mbMarch 28, 1976
118 km ESE of Nikolski, Alaska · depth 36 km
M 5.0 mbMarch 25, 1976
29 km ENE of Akhiok, Alaska · depth 28 km
M 4.9 mbMarch 24, 1976
56 km NW of Nikolski, Alaska · depth 110 km
M 4.8 mbMarch 22, 1976
26 km WSW of Akutan, Alaska · depth 79 km
M 4.8 mbMarch 21, 1976
121 km S of Unalaska, Alaska · depth 33 km
M 4.5 mbMarch 13, 1976
106 km N of Ambler, Alaska · depth 53 km
M 4.5 mbMarch 6, 1976
16 km E of Egegik, Alaska · depth 155 km
M 5.0 mbFebruary 23, 1976
107 km SSW of Nikolski, Alaska · depth 26 km
M 5.3 mbFebruary 22, 1976
88 km SSW of Nikolski, Alaska · depth 44 km
M 4.7 mbFebruary 19, 1976
96 km SE of Akutan, Alaska · depth 44 km
M 5.0 mbFebruary 19, 1976
111 km SE of Akutan, Alaska · depth 33 km
M 4.5 mbFebruary 15, 1976
78 km SW of Nikolski, Alaska · depth 61 km
M 4.7 mbFebruary 7, 1976
13 km E of Sand Point, Alaska · depth 75 km
M 5.2 mbFebruary 5, 1976
11 km SSE of Lowell Point, Alaska · depth 35 km
M 4.6 mbJanuary 26, 1976
64 km E of Port Alsworth, Alaska · depth 148 km
M 4.5 mbJanuary 25, 1976
109 km WNW of Yakutat, Alaska · depth 91 km
M 4.5 mbJanuary 8, 1976
19 km SSW of Womens Bay, Alaska · depth 55 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.