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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 4.8 mbJanuary 7, 1981
77 km SSW of Akhiok, Alaska · depth 33 km
M 4.7 mbJanuary 6, 1981
184 km E of Atka, Alaska · depth 76 km
M 4.7 mbDecember 27, 1980
115 km SSE of Port Graham, Alaska · depth 33 km
M 4.7 mbDecember 26, 1980
166 km SW of Nikolski, Alaska · depth 33 km
M 5.0 mbDecember 24, 1980
139 km SW of Nikolski, Alaska · depth 33 km
M 4.8 mbDecember 3, 1980
90 km WSW of Nikolski, Alaska · depth 50 km
M 4.9 mbNovember 30, 1980
61 km SE of Pedro Bay, Alaska · depth 87 km
M 4.5 mbNovember 29, 1980
65 km WNW of Nikolski, Alaska · depth 99 km
M 4.6 mbNovember 28, 1980
38 km WNW of Ninilchik, Alaska · depth 111 km
M 5.0 mbNovember 28, 1980
145 km SE of Akutan, Alaska · depth 33 km
M 4.9 mbNovember 28, 1980
234 km S of False Pass, Alaska · depth 33 km
M 4.7 mbNovember 26, 1980
144 km SSE of Old Harbor, Alaska · depth 33 km
M 4.6 mbNovember 26, 1980
63 km SE of Akhiok, Alaska · depth 33 km
M 4.6 mbNovember 26, 1980
94 km SW of Nikolski, Alaska · depth 48 km
M 4.6 mbNovember 22, 1980
17 km SE of Kokhanok, Alaska · depth 137 km
M 4.5 mlNovember 12, 1980
40 km WNW of Lake Minchumina, Alaska · depth 33 km
M 4.7 mbOctober 30, 1980
38 km SW of Pilot Point, Alaska · depth 125 km
M 4.8 mbOctober 26, 1980
67 km SW of Nikolski, Alaska · depth 43 km
M 4.9 mbOctober 25, 1980
121 km SE of Chignik, Alaska · depth 33 km
M 4.8 mbOctober 22, 1980
90 km ESE of Chenega, Alaska · depth 33 km
M 4.8 mbOctober 20, 1980
130 km SW of Nikolski, Alaska · depth 17 km
M 4.5 mbOctober 16, 1980
67 km S of Ivanof Bay, Alaska · depth 10 km
M 5.0 mbOctober 15, 1980
36 km S of Nelson Lagoon, Alaska · depth 24 km
M 4.5 mbOctober 14, 1980
17 km SW of Akutan, Alaska · depth 85 km
M 4.7 mbOctober 11, 1980
288 km SSE of Old Harbor, Alaska · depth 33 km
M 4.5 mbOctober 11, 1980
177 km E of Atka, Alaska · depth 33 km
M 4.5 mbOctober 6, 1980
northern Alaska · depth 33 km
M 4.7 mbOctober 6, 1980
39 km ESE of Old Harbor, Alaska · depth 33 km
M 4.5 mbOctober 6, 1980
147 km ENE of Kodiak, Alaska · depth 33 km
M 4.6 mbOctober 6, 1980
82 km ESE of Kobuk, Alaska · depth 33 km
M 5.4 mbSeptember 21, 1980
143 km SSW of Nikolski, Alaska · depth 14 km
M 5.2 mbSeptember 21, 1980
Fox Islands, Aleutian Islands, Alaska · depth 12 km
M 5.4 msSeptember 4, 1980
153 km SE of Cordova, Alaska · depth 33 km
M 4.5 mbAugust 30, 1980
55 km WNW of Nanwalek, Alaska · depth 81 km
M 4.8 mbAugust 25, 1980
43 km WNW of Anchor Point, Alaska · depth 33 km
M 5.3 mbAugust 23, 1980
34 km S of Sand Point, Alaska · depth 38 km
M 4.5 mbAugust 18, 1980
62 km NNE of Petersville, Alaska · depth 39 km
M 4.8 mbAugust 16, 1980
133 km S of False Pass, Alaska · depth 33 km
M 4.8 msAugust 13, 1980
132 km S of False Pass, Alaska · depth 33 km
M 5.0 mbAugust 12, 1980
61 km WNW of Anchor Point, Alaska · depth 110 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.