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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 6, 2010
112 km SSW of Nikolski, Alaska · depth 23 km
M 4.6 mbDecember 4, 2010
98 km SSW of Nikolski, Alaska · depth 39 km
M 4.5 mbDecember 4, 2010
92 km SSW of Nikolski, Alaska · depth 42 km
M 4.6 mbDecember 4, 2010
111 km SSW of Nikolski, Alaska · depth 20 km
M 5.1 mwcDecember 4, 2010
109 km SSW of Nikolski, Alaska · depth 36 km
M 4.7 mbDecember 4, 2010
93 km SSW of Nikolski, Alaska · depth 46 km
M 4.5 mbDecember 4, 2010
104 km SSW of Nikolski, Alaska · depth 6 km
M 4.6 mbDecember 4, 2010
107 km SSW of Nikolski, Alaska · depth 36 km
M 4.7 mbDecember 4, 2010
115 km SSW of Nikolski, Alaska · depth 16 km
M 4.9 mbNovember 30, 2010
238 km SSW of Nikolski, Alaska · depth 13 km
M 4.8 mbNovember 30, 2010
107 km SSW of Nikolski, Alaska · depth 32 km
M 4.8 mbNovember 30, 2010
93 km SSW of Nikolski, Alaska · depth 40 km
M 5.5 mwcNovember 30, 2010
91 km SSW of Nikolski, Alaska · depth 18 km
M 4.6 mbNovember 27, 2010
14 km W of Ninilchik, Alaska · depth 65 km
M 4.9 mwNovember 15, 2010
4 km N of Moose Pass, Alaska · depth 28 km
M 4.7 mbNovember 14, 2010
120 km NNW of Nikolski, Alaska · depth 249 km
M 4.6 mwNovember 14, 2010
68 km SE of Denali National Park, Alaska · depth 131 km
M 5.3 mwcNovember 12, 2010
64 km WSW of Nikolski, Alaska · depth 20 km
M 5.1 mwNovember 7, 2010
121 km NNW of Arctic Village, Alaska · depth 2 km
M 4.7 mbOctober 21, 2010
28 km SE of Kokhanok, Alaska · depth 153 km
M 4.5 mbOctober 15, 2010
222 km SW of Nikolski, Alaska · depth 21 km
M 4.5 mbOctober 12, 2010
36 km N of Aleneva, Alaska · depth 61 km
M 4.7 mwOctober 8, 2010
78 km NNE of Aleneva, Alaska · depth 56 km
M 5.1 mwcOctober 3, 2010
127 km ESE of Nikolski, Alaska · depth 37 km
M 4.8 mbOctober 3, 2010
160 km S of False Pass, Alaska · depth 25 km
M 4.6 mbOctober 1, 2010
111 km SW of Nikolski, Alaska · depth 29 km
M 4.6 mbOctober 1, 2010
77 km SW of Nikolski, Alaska · depth 39 km
M 5.4 mwSeptember 25, 2010
54 km NE of Chase, Alaska · depth 84 km
M 4.9 mwSeptember 20, 2010
20 km SW of Anchorage, Alaska · depth 45 km
M 5.0 mwSeptember 15, 2010
52 km E of Pedro Bay, Alaska · depth 121 km
M 4.6 mbSeptember 15, 2010
118 km SE of Akutan, Alaska · depth 29 km
M 4.5 mbSeptember 15, 2010
135 km SE of Akutan, Alaska · depth 11 km
M 4.7 mbSeptember 4, 2010
126 km S of Unalaska, Alaska · depth 28 km
M 4.5 mbSeptember 3, 2010
182 km SSE of King Cove, Alaska · depth 18 km
M 4.7 mbAugust 29, 2010
33 km S of Sand Point, Alaska · depth 33 km
M 4.7 mwAugust 28, 2010
Alaska Peninsula · depth 86 km
M 4.8 mbAugust 27, 2010
73 km S of Nikolski, Alaska · depth 13 km
M 4.6 mbAugust 24, 2010
45 km WSW of Nikolski, Alaska · depth 10 km
M 5.0 mwcAugust 23, 2010
110 km SE of Akutan, Alaska · depth 36 km
M 5.2 mwcAugust 20, 2010
25 km W of Akutan, Alaska · depth 108 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.