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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 4.9 mbAugust 10, 1980
Unimak Island region, Alaska · depth 33 km
M 4.9 mbAugust 10, 1980
Alaska Peninsula · depth 33 km
M 5.2 mbAugust 7, 1980
21 km E of Denali National Park, Alaska · depth 10 km
M 5.7 mwAugust 3, 1980
102 km SSW of Nikolski, Alaska · depth 29 km
M 5.5 msAugust 3, 1980
108 km SSW of Nikolski, Alaska · depth 33 km
M 4.5 mbAugust 2, 1980
85 km SSW of Nikolski, Alaska · depth 33 km
M 5.3 mbAugust 2, 1980
98 km SSW of Nikolski, Alaska · depth 33 km
M 5.4 mbAugust 1, 1980
58 km SSE of Lowell Point, Alaska · depth 26 km
M 4.7 mbJuly 27, 1980
29 km SW of Lake Minchumina, Alaska · depth 21 km
M 4.7 mbJuly 24, 1980
110 km SE of Akutan, Alaska · depth 14 km
M 4.7 mbJuly 18, 1980
102 km NW of Yakutat, Alaska · depth 15 km
M 5.2 mbJuly 6, 1980
43 km S of Akhiok, Alaska · depth 26 km
M 4.7 mbJuly 4, 1980
131 km S of False Pass, Alaska · depth 33 km
M 4.9 mbJune 30, 1980
Southern Alaska · depth 15 km
M 4.5 mlJune 30, 1980
93 km WNW of Yakutat, Alaska · depth 15 km
M 5.0 mbJune 30, 1980
90 km NW of Yakutat, Alaska · depth 13 km
M 4.5 mbJune 9, 1980
11 km WSW of Susitna, Alaska · depth 73 km
M 4.8 mbMay 7, 1980
53 km NNE of Cold Bay, Alaska · depth 80 km
M 5.0 mbMay 7, 1980
54 km N of Petersville, Alaska · depth 118 km
M 4.7 mbApril 28, 1980
98 km SSE of Ugashik, Alaska · depth 58 km
M 4.9 mbApril 18, 1980
226 km SE of Atka, Alaska · depth 33 km
M 4.6 mbApril 16, 1980
75 km ESE of King Cove, Alaska · depth 59 km
M 4.7 mbApril 14, 1980
68 km E of Nikolski, Alaska · depth 46 km
M 5.4 mbApril 13, 1980
34 km SSE of Sand Point, Alaska · depth 57 km
M 5.2 msApril 6, 1980
48 km S of Glacier View, Alaska · depth 49 km
M 4.7 mbApril 5, 1980
146 km S of False Pass, Alaska · depth 33 km
M 4.8 mbApril 4, 1980
62 km SE of Akutan, Alaska · depth 33 km
M 5.0 mbApril 3, 1980
41 km SW of Cantwell, Alaska · depth 92 km
M 4.8 mbMarch 30, 1980
135 km S of Unalaska, Alaska · depth 31 km
M 4.8 mbMarch 28, 1980
159 km E of Atka, Alaska · depth 55 km
M 4.9 mbMarch 28, 1980
83 km E of Nikolski, Alaska · depth 30 km
M 4.7 mbMarch 27, 1980
76 km ESE of Nikolski, Alaska · depth 33 km
M 4.5 mbMarch 26, 1980
95 km NNE of Nikolski, Alaska · depth 33 km
M 4.8 mbMarch 25, 1980
74 km E of Nikolski, Alaska · depth 45 km
M 4.9 mbMarch 25, 1980
72 km ENE of Nikolski, Alaska · depth 33 km
M 4.6 mbMarch 24, 1980
96 km E of Nikolski, Alaska · depth 33 km
M 4.6 mbMarch 24, 1980
81 km ESE of Nikolski, Alaska · depth 33 km
M 4.9 mbMarch 24, 1980
84 km E of Nikolski, Alaska · depth 33 km
M 4.7 mbMarch 24, 1980
151 km SE of Nikolski, Alaska · depth 33 km
M 4.5 mbMarch 24, 1980
59 km SE of Nikolski, Alaska · depth 33 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.