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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 5.3 mwcNovember 5, 2008
151 km SW of Nikolski, Alaska · depth 30 km
M 4.6 mbNovember 4, 2008
42 km WNW of Anchor Point, Alaska · depth 80 km
M 4.7 mbOctober 31, 2008
128 km SW of Nikolski, Alaska · depth 7 km
M 4.5 mbOctober 28, 2008
59 km S of Shungnak, Alaska · depth 10 km
M 4.9 mwOctober 28, 2008
59 km SSW of Shungnak, Alaska · depth 15 km
M 4.6 mbOctober 13, 2008
54 km E of Red Dog Mine, Alaska · depth 14 km
M 4.8 mbOctober 8, 2008
141 km ESE of Nikolski, Alaska · depth 24 km
M 4.9 mwcOctober 8, 2008
125 km ESE of Nikolski, Alaska · depth 12 km
M 4.8 mbOctober 8, 2008
53 km WNW of Happy Valley, Alaska · depth 104 km
M 5.2 mwOctober 8, 2008
90 km SSW of McCarthy, Alaska · depth 8 km
M 4.5 mbOctober 7, 2008
52 km ENE of Pedro Bay, Alaska · depth 140 km
M 4.6 mwSeptember 18, 2008
52 km WNW of Nanwalek, Alaska · depth 90 km
M 4.6 mbSeptember 12, 2008
21 km E of Susitna North, Alaska · depth 44 km
M 4.5 mlSeptember 4, 2008
92 km S of Unalaska, Alaska · depth 25 km
M 4.5 mlAugust 25, 2008
69 km S of Perryville, Alaska · depth 51 km
M 5.2 mwcAugust 18, 2008
147 km SW of Nikolski, Alaska · depth 31 km
M 4.5 mbAugust 12, 2008
47 km NW of Karluk, Alaska · depth 83 km
M 5.3 mwcAugust 11, 2008
130 km S of False Pass, Alaska · depth 23 km
M 5.2 mwcAugust 7, 2008
75 km SW of Unalaska, Alaska · depth 32 km
M 4.5 mbJuly 24, 2008
127 km S of False Pass, Alaska · depth 34 km
M 4.5 mbJuly 12, 2008
52 km S of Nikolski, Alaska · depth 38 km
M 4.6 mbJuly 4, 2008
69 km ESE of Denali National Park, Alaska · depth 134 km
M 5.0 mwcJuly 1, 2008
71 km SSE of Nikolski, Alaska · depth 31 km
M 5.4 mwcJune 29, 2008
134 km SSW of Nikolski, Alaska · depth 26 km
M 4.9 mbJune 17, 2008
73 km SE of King Cove, Alaska · depth 48 km
M 5.0 mwcJune 5, 2008
94 km SSW of Nikolski, Alaska · depth 44 km
M 4.7 mbJune 5, 2008
245 km ESE of Atka, Alaska · depth 17 km
M 4.7 mbJune 3, 2008
115 km SSW of Nikolski, Alaska · depth 27 km
M 4.5 mbJune 1, 2008
124 km WSW of Nikolski, Alaska · depth 10 km
M 4.7 mbMay 26, 2008
south of Alaska · depth 14 km
M 4.5 mbMay 25, 2008
122 km SSE of Akhiok, Alaska · depth 15 km
M 6.0 mwMay 25, 2008
122 km SSE of Akhiok, Alaska · depth 20 km
M 4.5 mwMay 17, 2008
79 km ESE of Chalkyitsik, Alaska · depth 20 km
M 5.2 mbMay 12, 2008
83 km S of Old Harbor, Alaska · depth 20 km
M 4.8 mbMay 11, 2008
105 km SSE of Cordova, Alaska · depth 5 km
M 4.5 mbApril 27, 2008
111 km SSW of Nikolski, Alaska · depth 35 km
M 4.6 mbApril 25, 2008
226 km SSE of Akutan, Alaska · depth 10 km
M 4.9 mbApril 16, 2008
79 km S of Nikolski, Alaska · depth 10 km
M 5.2 mwApril 13, 2008
54 km SSW of Point Hope, Alaska · depth 10 km
M 4.7 mbApril 10, 2008
205 km SSE of False Pass, Alaska · depth 36 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.