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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 mbAugust 17, 2007
74 km N of Kiana, Alaska · depth 10 km
M 4.6 mbJuly 21, 2007
77 km SE of Nikolski, Alaska · depth 10 km
M 4.7 mbJuly 20, 2007
69 km SE of Nikolski, Alaska · depth 17 km
M 5.0 mbJuly 15, 2007
82 km SE of Nikolski, Alaska · depth 10 km
M 5.0 mbJuly 15, 2007
38 km WNW of Nelson Lagoon, Alaska · depth 10 km
M 4.7 mbJuly 15, 2007
80 km SE of Nikolski, Alaska · depth 10 km
M 5.1 mbJuly 15, 2007
79 km SE of Nikolski, Alaska · depth 10 km
M 4.7 mbJuly 15, 2007
94 km SE of Nikolski, Alaska · depth 9 km
M 4.8 mbJuly 15, 2007
80 km SE of Nikolski, Alaska · depth 10 km
M 5.9 mwcJuly 15, 2007
86 km SE of Nikolski, Alaska · depth 10 km
M 4.8 mbJuly 15, 2007
99 km SE of Nikolski, Alaska · depth 5 km
M 6.1 mwcJuly 15, 2007
74 km SE of Nikolski, Alaska · depth 15 km
M 4.9 mwcJuly 14, 2007
131 km WSW of Nikolski, Alaska · depth 65 km
M 4.9 mwcJuly 10, 2007
137 km WSW of Nikolski, Alaska · depth 41 km
M 4.9 mwcJuly 8, 2007
124 km S of False Pass, Alaska · depth 34 km
M 4.5 mwJuly 4, 2007
135 km SW of Yakutat, Alaska · depth 10 km
M 4.5 mbJune 22, 2007
46 km SSW of Nikolski, Alaska · depth 43 km
M 4.9 mwcMay 29, 2007
143 km S of False Pass, Alaska · depth 23 km
M 4.6 mbMay 17, 2007
64 km SSE of Nikolski, Alaska · depth 1 km
M 5.0 mwcMay 17, 2007
71 km NW of Nikolski, Alaska · depth 134 km
M 4.8 mbMay 13, 2007
92 km SE of King Cove, Alaska · depth 64 km
M 4.6 mbMay 10, 2007
55 km SE of Unalaska, Alaska · depth 64 km
M 4.9 mwApril 28, 2007
71 km SW of Kaktovik, Alaska · depth 10 km
M 4.8 mbApril 22, 2007
97 km SSW of Sand Point, Alaska · depth 41 km
M 4.6 mbApril 21, 2007
105 km WSW of Nikolski, Alaska · depth 57 km
M 4.6 mbApril 21, 2007
128 km SW of Akhiok, Alaska · depth 41 km
M 4.7 mwApril 20, 2007
57 km SW of Kaktovik, Alaska · depth 6 km
M 4.5 mbApril 14, 2007
84 km SE of Nikolski, Alaska · depth 35 km
M 4.7 mbApril 13, 2007
85 km SSE of Nikolski, Alaska · depth 20 km
M 5.3 mwcApril 13, 2007
74 km SE of Nikolski, Alaska · depth 39 km
M 4.6 mwApril 10, 2007
69 km SSW of Kaktovik, Alaska · depth 20 km
M 4.7 mwApril 8, 2007
158 km SSE of Cordova, Alaska · depth 7 km
M 4.7 mbApril 2, 2007
128 km SW of Nikolski, Alaska · depth 10 km
M 4.5 mbMarch 30, 2007
80 km NW of Nelson Lagoon, Alaska · depth 215 km
M 4.6 mbMarch 28, 2007
222 km SSE of Akutan, Alaska · depth 26 km
M 4.5 mbMarch 20, 2007
122 km SSW of False Pass, Alaska · depth 57 km
M 4.7 mbMarch 16, 2007
121 km SSE of Perryville, Alaska · depth 12 km
M 4.8 mbMarch 12, 2007
63 km E of Chignik, Alaska · depth 46 km
M 4.9 mbMarch 7, 2007
158 km S of Unalaska, Alaska · depth 18 km
M 4.6 mbFebruary 24, 2007
55 km ESE of King Salmon, Alaska · depth 153 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.