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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 4.6 mbDecember 2, 2014
228 km SW of Nikolski, Alaska · depth 34 km
M 4.6 mwNovember 29, 2014
81 km NW of Eureka Roadhouse, Alaska · depth 62 km
M 5.1 mwNovember 29, 2014
29 km NNE of Petersville, Alaska · depth 97 km
M 4.9 mwNovember 5, 2014
32 km SSW of Covenant Life, Alaska · depth 6 km
M 5.0 mwOctober 23, 2014
14 km E of Minto, Alaska · depth 20 km
M 4.9 mwOctober 21, 2014
14 km E of Minto, Alaska · depth 13 km
M 4.7 mbOctober 18, 2014
129 km SSE of Perryville, Alaska · depth 8 km
M 4.5 mwOctober 18, 2014
25 km ESE of Clam Gulch, Alaska · depth 65 km
M 4.8 mbSeptember 28, 2014
253 km S of False Pass, Alaska · depth 12 km
M 4.9 mlSeptember 27, 2014
16 km S of Susitna North, Alaska · depth 47 km
M 6.2 mlSeptember 25, 2014
22 km WSW of Skwentna, Alaska · depth 109 km
M 4.5 mlSeptember 24, 2014
33 km NW of Valdez, Alaska · depth 27 km
M 4.5 mbSeptember 21, 2014
183 km S of Nikolski, Alaska · depth 30 km
M 5.2 mwAugust 31, 2014
14 km E of Minto, Alaska · depth 17 km
M 5.1 mwAugust 27, 2014
147 km S of Cordova, Alaska · depth 28 km
M 4.7 mbAugust 19, 2014
50 km SW of Nikolski, Alaska · depth 5 km
M 4.5 mbAugust 16, 2014
90 km SSE of Nikolski, Alaska · depth 8 km
M 4.6 mwAugust 14, 2014
58 km SE of Kokhanok, Alaska · depth 130 km
M 4.5 mbAugust 13, 2014
52 km WSW of Nikolski, Alaska · depth 10 km
M 5.1 mwAugust 3, 2014
121 km SE of Chignik, Alaska · depth 12 km
M 4.7 mbJuly 30, 2014
147 km WSW of Nikolski, Alaska · depth 56 km
M 4.6 mwJuly 25, 2014
44 km W of Elfin Cove, Alaska · depth 2 km
M 4.5 mlJuly 25, 2014
32 km NW of Karluk, Alaska · depth 86 km
M 4.7 mbJuly 25, 2014
41 km WNW of Elfin Cove, Alaska · depth 10 km
M 6.0 mwJuly 25, 2014
40 km WNW of Elfin Cove, Alaska · depth 10 km
M 4.7 mbJuly 25, 2014
43 km WNW of Elfin Cove, Alaska · depth 10 km
M 5.0 mwJuly 20, 2014
92 km NNW of Yakutat, Alaska · depth 6 km
M 4.9 mwJuly 18, 2014
51 km E of Noatak, Alaska · depth 14 km
M 4.8 mbJuly 17, 2014
98 km NNW of Yakutat, Alaska · depth 12 km
M 6.0 mwwJuly 17, 2014
90 km NNW of Yakutat, Alaska · depth 10 km
M 5.1 mbJuly 15, 2014
85 km E of Nikolski, Alaska · depth 30 km
M 4.7 mwrJuly 12, 2014
143 km ESE of McCarthy, Alaska · depth 1 km
M 4.8 mbJuly 7, 2014
155 km SE of King Cove, Alaska · depth 10 km
M 4.5 mbJuly 1, 2014
133 km ESE of Nikolski, Alaska · depth 23 km
M 5.4 mwwJune 20, 2014
207 km ESE of Atka, Alaska · depth 42 km
M 4.5 mwJune 17, 2014
28 km N of Petersville, Alaska · depth 95 km
M 5.7 mwJune 16, 2014
29 km ENE of Noatak, Alaska · depth 15 km
M 4.5 mlJune 7, 2014
30 km ENE of Noatak, Alaska · depth 17 km
M 5.8 mwJune 7, 2014
northern Alaska · depth 19 km
M 5.1 mwwJune 5, 2014
144 km ESE of McCarthy, Alaska · depth 10 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.