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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 5.5 mwMay 23, 1969
241 km S of Sand Point, Alaska · depth 14 km
M 5.7 mwMay 18, 1969
30 km SSW of Cordova, Alaska · depth 16 km
M 5.6 mwDecember 30, 1968
51 km ESE of Chiniak, Alaska · depth 33 km
M 5.6 mwDecember 22, 1968
69 km S of Akhiok, Alaska · depth 23 km
M 6.3 mwDecember 17, 1968
70 km E of Port Alsworth, Alaska · depth 110 km
M 5.5 mwNovember 11, 1968
64 km SW of Karluk, Alaska · depth 54 km
M 6.5 mwOctober 29, 1968
15 km S of Rampart, Alaska · depth 10 km
M 5.3 mwSeptember 9, 1968
119 km S of Lowell Point, Alaska · depth 21 km
M 5.1 mwJuly 7, 1968
58 km S of Glacier View, Alaska · depth 31 km
M 5.7 mwJune 23, 1968
73 km SE of Old Harbor, Alaska · depth 19 km
M 5.7 mwJune 10, 1968
Alaska Peninsula · depth 184 km
M 6.6 mwApril 23, 1968
124 km SSE of Halibut Cove, Alaska · depth 19 km
M 5.6 mwJanuary 23, 1968
185 km WSW of Nikolski, Alaska · depth 42 km
M 6.2 mwJanuary 14, 1968
173 km WSW of Nikolski, Alaska · depth 13 km
M 5.6 mwJanuary 14, 1968
177 km WSW of Nikolski, Alaska · depth 10 km
M 6.1 mwJanuary 4, 1968
188 km E of Atka, Alaska · depth 27 km
M 5.2 mwNovember 27, 1967
99 km NW of Yakutat, Alaska · depth 17 km
M 5.9 mwSeptember 28, 1967
94 km SSE of Chenega, Alaska · depth 31 km
M 5.1 mwAugust 18, 1967
28 km WSW of Susitna, Alaska · depth 19 km
M 5.3 mwAugust 17, 1967
16 km SE of Seldovia, Alaska · depth 43 km
M 5.2 mwAugust 7, 1967
87 km S of Kokhanok, Alaska · depth 15 km
M 6.2 mwJuly 6, 1967
58 km SE of Nikolski, Alaska · depth 31 km
M 5.3 mwJuly 6, 1967
40 km WNW of Lake Louise, Alaska · depth 58 km
M 6.5 mwJuly 1, 1967
183 km SSE of Perryville, Alaska · depth 20 km
M 5.1 mwJune 23, 1967
5 km NNW of Badger, Alaska · depth 10 km
M 5.5 mwJune 21, 1967
10 km SSW of Badger, Alaska · depth 14 km
M 5.7 mwJune 21, 1967
15 km SSW of Badger, Alaska · depth 10 km
M 5.5 mwJune 21, 1967
3 km ESE of Farmers Loop, Alaska · depth 13 km
M 5.9 mwJune 20, 1967
123 km ESE of Nikolski, Alaska · depth 33 km
M 6.1 mwJune 19, 1967
134 km ESE of Nikolski, Alaska · depth 34 km
M 5.4 mwJune 3, 1967
73 km ENE of Ouzinkie, Alaska · depth 28 km
M 5.5 mwJune 1, 1967
58 km S of Akutan, Alaska · depth 60 km
M 5.2 mwMay 17, 1967
84 km SSW of McCarthy, Alaska · depth 10 km
M 5.6 mwMay 13, 1967
104 km SSE of Old Harbor, Alaska · depth 18 km
M 5.4 mwMay 9, 1967
92 km SSE of Old Harbor, Alaska · depth 18 km
M 5.5 mwApril 10, 1967
91 km WNW of Aleneva, Alaska · depth 85 km
M 5.5 mwMarch 31, 1967
Fox Islands, Aleutian Islands, Alaska · depth 30 km
M 5.7 mwFebruary 7, 1967
71 km ENE of Chignik, Alaska · depth 62 km
M 5.8 mwJanuary 28, 1967
83 km SSW of Nikolski, Alaska · depth 30 km
M 5.6 mwJanuary 28, 1967
79 km SSW of Nikolski, Alaska · depth 35 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.