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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 mwJuly 14, 1965
59 km SSE of Nikolski, Alaska · depth 32 km
M 7.8 mwJuly 2, 1965
81 km E of Nikolski, Alaska · depth 39 km
M 5.1 mwJune 27, 1965
103 km NW of Yakutat, Alaska · depth 15 km
M 5.5 mwJune 27, 1965
112 km NW of Yakutat, Alaska · depth 12 km
M 6.2 mwJune 23, 1965
76 km SSE of Old Harbor, Alaska · depth 22 km
M 5.5 mbMay 11, 1965
2 km ENE of Eagle River, Alaska · depth 61 km
M 5.4 mwMay 1, 1965
29 km SW of Cordova, Alaska · depth 16 km
M 5.7 mwApril 26, 1965
88 km SE of False Pass, Alaska · depth 35 km
M 5.5 mwApril 26, 1965
199 km WSW of Yakutat, Alaska · depth 23 km
M 6.0 mwApril 16, 1965
53 km ENE of Shaktoolik, Alaska · depth 10 km
M 5.7 mwMarch 24, 1965
92 km SSE of Old Harbor, Alaska · depth 17 km
M 5.7 mwMarch 13, 1965
187 km SSE of False Pass, Alaska · depth 20 km
M 6.3 mwFebruary 6, 1965
210 km S of King Cove, Alaska · depth 23 km
M 6.3 mwFebruary 6, 1965
226 km SSE of False Pass, Alaska · depth 22 km
M 5.6 mwDecember 13, 1964
43 km SE of Teller, Alaska · depth 15 km
M 5.8 mwDecember 2, 1964
54 km S of Akutan, Alaska · depth 20 km
M 5.6 mwOctober 10, 1964
26 km WSW of Cordova, Alaska · depth 15 km
M 5.5 mwOctober 3, 1964
48 km WNW of Valdez, Alaska · depth 25 km
M 5.5 mwOctober 2, 1964
123 km SSE of Cordova, Alaska · depth 15 km
M 5.8 mwSeptember 27, 1964
108 km SE of Old Harbor, Alaska · depth 16 km
M 5.9 mwSeptember 23, 1964
135 km ESE of Akutan, Alaska · depth 37 km
M 6.1 mwSeptember 16, 1964
53 km E of Chenega, Alaska · depth 14 km
M 5.6 mwSeptember 14, 1964
75 km ENE of Chignik, Alaska · depth 65 km
M 5.7 mwSeptember 6, 1964
78 km SSE of Port Graham, Alaska · depth 45 km
M 5.5 mwSeptember 1, 1964
254 km SSW of Nikolski, Alaska · depth 24 km
M 5.8 mwAugust 24, 1964
124 km ENE of Ouzinkie, Alaska · depth 20 km
M 5.8 mwAugust 6, 1964
84 km SSE of Old Harbor, Alaska · depth 28 km
M 5.7 mwAugust 2, 1964
208 km SE of Chiniak, Alaska · depth 12 km
M 5.6 mwJuly 23, 1964
52 km S of Lowell Point, Alaska · depth 23 km
M 5.6 mwJuly 15, 1964
162 km SW of Nikolski, Alaska · depth 25 km
M 5.3 mwJuly 14, 1964
138 km SSE of Cordova, Alaska · depth 15 km
M 5.7 mwJuly 11, 1964
100 km ESE of Chenega, Alaska · depth 25 km
M 5.2 mwJuly 5, 1964
16 km E of Cordova, Alaska · depth 21 km
M 5.4 mwJuly 2, 1964
71 km ESE of Chenega, Alaska · depth 16 km
M 5.6 mwJune 29, 1964
72 km WNW of Petersville, Alaska · depth 20 km
M 5.5 mwJune 28, 1964
115 km ENE of Kodiak, Alaska · depth 22 km
M 5.2 mwJune 10, 1964
70 km SE of Kokhanok, Alaska · depth 15 km
M 5.4 mwJune 5, 1964
20 km NNE of Ouzinkie, Alaska · depth 13 km
M 5.5 mwJune 5, 1964
29 km SSW of Cordova, Alaska · depth 13 km
M 5.5 mwJune 2, 1964
118 km SSE of Cordova, Alaska · depth 23 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.