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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 5.2 mwJanuary 20, 1997
136 km SSE of Old Harbor, Alaska · depth 10 km
M 5.1 mwcJanuary 9, 1997
128 km S of False Pass, Alaska · depth 33 km
M 4.9 mbDecember 27, 1996
131 km SE of Old Harbor, Alaska · depth 10 km
M 4.6 mbDecember 14, 1996
113 km WSW of Akhiok, Alaska · depth 53 km
M 4.5 mbDecember 11, 1996
44 km SW of Port Heiden, Alaska · depth 33 km
M 5.5 mwDecember 8, 1996
129 km SE of Old Harbor, Alaska · depth 10 km
M 4.7 mbDecember 4, 1996
140 km SE of Akutan, Alaska · depth 33 km
M 4.6 mbNovember 30, 1996
75 km S of Nikolski, Alaska · depth 33 km
M 4.7 mbNovember 21, 1996
118 km SSW of Nikolski, Alaska · depth 33 km
M 5.1 mbNovember 20, 1996
93 km WNW of Nikolski, Alaska · depth 102 km
M 4.7 mbNovember 20, 1996
113 km S of False Pass, Alaska · depth 33 km
M 4.9 mbNovember 14, 1996
90 km S of False Pass, Alaska · depth 33 km
M 4.6 mbNovember 11, 1996
6 km NW of Sutton-Alpine, Alaska · depth 18 km
M 4.5 mbNovember 8, 1996
60 km WNW of Anchor Point, Alaska · depth 112 km
M 5.2 mwcNovember 6, 1996
109 km SSE of False Pass, Alaska · depth 33 km
M 5.7 mwOctober 22, 1996
31 km NNE of Paxson, Alaska · depth 4 km
M 4.7 mbOctober 18, 1996
47 km SSE of Nelchina, Alaska · depth 40 km
M 5.4 mwOctober 17, 1996
70 km WNW of Happy Valley, Alaska · depth 117 km
M 5.2 mwcOctober 1, 1996
194 km SE of Nikolski, Alaska · depth 10 km
M 4.8 mbSeptember 26, 1996
185 km E of Atka, Alaska · depth 33 km
M 4.7 mbSeptember 21, 1996
39 km W of Dutch Harbor, Alaska · depth 100 km
M 4.6 mbSeptember 16, 1996
84 km WSW of Kivalina, Alaska · depth 10 km
M 4.7 mbSeptember 2, 1996
53 km ESE of Perryville, Alaska · depth 62 km
M 4.5 mbSeptember 1, 1996
122 km S of False Pass, Alaska · depth 33 km
M 4.6 mbAugust 31, 1996
89 km SE of False Pass, Alaska · depth 33 km
M 4.7 mbAugust 25, 1996
88 km ENE of Venetie, Alaska · depth 42 km
M 5.5 mwcAugust 8, 1996
97 km SSW of Unalaska, Alaska · depth 44 km
M 5.2 mwcJuly 21, 1996
192 km S of Nikolski, Alaska · depth 33 km
M 5.9 mwcJuly 10, 1996
177 km WSW of Nikolski, Alaska · depth 33 km
M 4.6 mbJuly 9, 1996
123 km SW of Nikolski, Alaska · depth 33 km
M 5.4 mwJuly 4, 1996
33 km ESE of Skwentna, Alaska · depth 54 km
M 4.7 mbJuly 1, 1996
126 km E of Chignik, Alaska · depth 117 km
M 4.6 mbJune 4, 1996
81 km E of Nikolski, Alaska · depth 33 km
M 4.6 mbMay 14, 1996
79 km S of Nikolski, Alaska · depth 33 km
M 4.5 mbMay 10, 1996
5 km ESE of Susitna North, Alaska · depth 46 km
M 4.7 mbMay 9, 1996
80 km S of Nikolski, Alaska · depth 33 km
M 5.1 mbApril 28, 1996
162 km SSE of Akutan, Alaska · depth 33 km
M 5.5 mwcApril 26, 1996
36 km ESE of Nikolski, Alaska · depth 33 km
M 4.7 mbApril 20, 1996
82 km SSE of Nikolski, Alaska · depth 33 km
M 4.7 mbApril 20, 1996
78 km SSW of Sand Point, Alaska · depth 38 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.