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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 mbJune 16, 2010
52 km SE of Nikolski, Alaska · depth 56 km
M 5.0 mbJune 16, 2010
169 km S of Yakutat, Alaska · depth 5 km
M 4.9 mwJune 13, 2010
Alaska Peninsula · depth 15 km
M 5.1 mbJune 12, 2010
79 km SE of King Cove, Alaska · depth 51 km
M 5.0 mbMay 28, 2010
149 km S of False Pass, Alaska · depth 39 km
M 5.4 mwcMay 28, 2010
160 km S of False Pass, Alaska · depth 20 km
M 4.6 mwMay 24, 2010
32 km W of Happy Valley, Alaska · depth 72 km
M 4.8 mbMay 15, 2010
158 km WSW of Nikolski, Alaska · depth 26 km
M 4.9 mwcMay 13, 2010
91 km S of False Pass, Alaska · depth 47 km
M 4.6 mbMay 4, 2010
150 km ESE of Akutan, Alaska · depth 5 km
M 5.5 mwbMay 3, 2010
218 km SE of Akutan, Alaska · depth 8 km
M 4.5 mbMay 1, 2010
155 km S of False Pass, Alaska · depth 36 km
M 4.5 mbApril 30, 2010
52 km SE of Nikolski, Alaska · depth 18 km
M 5.7 mwcApril 16, 2010
100 km SSW of Sand Point, Alaska · depth 34 km
M 4.5 mbApril 15, 2010
south of Alaska · depth 30 km
M 4.6 mbApril 13, 2010
98 km SSW of Sand Point, Alaska · depth 43 km
M 4.5 mwApril 10, 2010
Southern Alaska · depth 44 km
M 4.6 mwApril 7, 2010
5 km SSW of Meadow Lakes, Alaska · depth 35 km
M 4.6 mbApril 1, 2010
104 km E of Chignik, Alaska · depth 76 km
M 4.7 mbMarch 22, 2010
116 km E of Chignik, Alaska · depth 3 km
M 4.5 mwMarch 22, 2010
58 km SSW of Shungnak, Alaska · depth 21 km
M 5.1 mbMarch 20, 2010
204 km SE of Nikolski, Alaska · depth 17 km
M 4.6 mbMarch 7, 2010
39 km NNE of Ouzinkie, Alaska · depth 51 km
M 4.6 mwFebruary 22, 2010
40 km S of Old Harbor, Alaska · depth 23 km
M 4.6 mwFebruary 15, 2010
103 km NW of Elfin Cove, Alaska · depth 3 km
M 4.7 mwFebruary 12, 2010
146 km SE of Old Harbor, Alaska · depth 11 km
M 4.5 mbFebruary 8, 2010
71 km NNW of Aleneva, Alaska · depth 62 km
M 5.1 mwcFebruary 3, 2010
118 km SSE of False Pass, Alaska · depth 35 km
M 5.0 mwJanuary 25, 2010
69 km NNW of Aleneva, Alaska · depth 90 km
M 5.2 mwcJanuary 21, 2010
89 km SE of King Cove, Alaska · depth 29 km
M 4.5 mbJanuary 13, 2010
19 km WNW of Nikolski, Alaska · depth 98 km
M 4.5 mbJanuary 2, 2010
201 km SE of Nikolski, Alaska · depth 32 km
M 4.8 mbDecember 30, 2009
50 km ESE of Sand Point, Alaska · depth 45 km
M 5.1 mwcDecember 29, 2009
190 km E of Atka, Alaska · depth 52 km
M 5.3 mwDecember 27, 2009
105 km SSE of Old Harbor, Alaska · depth 4 km
M 5.1 mwDecember 18, 2009
83 km SE of Pope-Vannoy Landing, Alaska · depth 81 km
M 4.7 mbDecember 13, 2009
135 km S of Unalaska, Alaska · depth 5 km
M 4.5 mwDecember 5, 2009
58 km ENE of Chalkyitsik, Alaska · depth 12 km
M 5.3 mwcDecember 3, 2009
51 km SSE of Akutan, Alaska · depth 63 km
M 4.7 mbNovember 19, 2009
88 km SSE of Nikolski, Alaska · depth 5 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.