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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 4.5 mbJune 19, 2006
63 km WNW of Happy Valley, Alaska · depth 121 km
M 4.7 mwJune 18, 2006
28 km NW of Willow, Alaska · depth 61 km
M 5.3 mwcJune 18, 2006
232 km SSE of King Cove, Alaska · depth 10 km
M 4.5 mbJune 2, 2006
194 km SE of Chignik, Alaska · depth 10 km
M 4.6 mbJune 2, 2006
195 km SE of Chignik, Alaska · depth 10 km
M 4.5 mbMay 31, 2006
66 km SE of Unalaska, Alaska · depth 35 km
M 4.8 mbMay 29, 2006
17 km SW of Cold Bay, Alaska · depth 83 km
M 4.9 mbMay 22, 2006
99 km SSW of False Pass, Alaska · depth 43 km
M 4.7 mbMay 17, 2006
66 km SSW of Nikolski, Alaska · depth 42 km
M 4.6 mbMay 15, 2006
109 km ESE of Akutan, Alaska · depth 42 km
M 4.6 mwMay 13, 2006
51 km ENE of Pedro Bay, Alaska · depth 137 km
M 4.5 mbMay 12, 2006
93 km S of Nikolski, Alaska · depth 10 km
M 4.6 mbMay 10, 2006
62 km SSW of Nikolski, Alaska · depth 27 km
M 4.5 mbMay 10, 2006
57 km SSW of Nikolski, Alaska · depth 23 km
M 5.3 mwcMay 10, 2006
38 km SW of Nikolski, Alaska · depth 45 km
M 4.5 mbMay 10, 2006
72 km S of Nikolski, Alaska · depth 25 km
M 6.4 mwcMay 10, 2006
54 km SSW of Nikolski, Alaska · depth 18 km
M 4.6 mbMay 2, 2006
123 km S of False Pass, Alaska · depth 20 km
M 4.5 mbApril 28, 2006
35 km NW of Chignik Lake, Alaska · depth 152 km
M 4.8 mwcApril 24, 2006
124 km ESE of Nikolski, Alaska · depth 25 km
M 4.5 mbApril 6, 2006
169 km ESE of Atka, Alaska · depth 41 km
M 4.7 mbMarch 29, 2006
32 km WSW of Cantwell, Alaska · depth 8 km
M 4.8 mwcMarch 28, 2006
111 km SSW of False Pass, Alaska · depth 33 km
M 4.7 mbMarch 20, 2006
103 km ESE of Sand Point, Alaska · depth 4 km
M 4.7 mwMarch 17, 2006
39 km WNW of Salamatof, Alaska · depth 81 km
M 4.6 mbMarch 15, 2006
137 km SE of Akutan, Alaska · depth 19 km
M 4.6 mbMarch 12, 2006
115 km SW of Kaktovik, Alaska · depth 10 km
M 4.8 mbMarch 4, 2006
139 km SE of Akutan, Alaska · depth 30 km
M 4.7 mwMarch 3, 2006
58 km E of Pedro Bay, Alaska · depth 99 km
M 4.6 mwFebruary 20, 2006
98 km WSW of Kaktovik, Alaska · depth 10 km
M 4.7 mbFebruary 8, 2006
75 km W of Akhiok, Alaska · depth 24 km
M 5.1 mwFebruary 5, 2006
64 km SE of Chalkyitsik, Alaska · depth 2 km
M 5.0 mwFebruary 5, 2006
5 km SSW of Seldovia, Alaska · depth 48 km
M 5.4 mwFebruary 5, 2006
61 km SE of Chalkyitsik, Alaska · depth 9 km
M 4.6 mbFebruary 1, 2006
89 km SSE of King Cove, Alaska · depth 15 km
M 5.1 mwJanuary 7, 2006
85 km ESE of Chignik, Alaska · depth 47 km
M 5.3 mwcJanuary 3, 2006
172 km SSE of Nikolski, Alaska · depth 10 km
M 4.7 mbDecember 30, 2005
69 km ESE of Denali National Park, Alaska · depth 130 km
M 4.6 mbDecember 30, 2005
107 km SE of Akutan, Alaska · depth 30 km
M 4.7 mbDecember 28, 2005
115 km SE of Akutan, Alaska · depth 37 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.