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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 5.0 mwcApril 6, 2008
south of Alaska · depth 14 km
M 5.1 mwcApril 6, 2008
159 km SW of Nikolski, Alaska · depth 39 km
M 5.1 mwcMarch 29, 2008
71 km SE of King Cove, Alaska · depth 46 km
M 5.3 mwMarch 27, 2008
41 km SSW of Nanwalek, Alaska · depth 69 km
M 4.6 mbMarch 26, 2008
71 km SSE of Nikolski, Alaska · depth 27 km
M 4.7 mbMarch 25, 2008
72 km SSE of Nikolski, Alaska · depth 23 km
M 5.0 mbMarch 25, 2008
59 km SSE of Nikolski, Alaska · depth 36 km
M 5.0 mwcMarch 25, 2008
64 km SSE of Nikolski, Alaska · depth 31 km
M 5.2 mwcMarch 25, 2008
45 km S of Nikolski, Alaska · depth 41 km
M 4.5 mbMarch 24, 2008
105 km SE of False Pass, Alaska · depth 10 km
M 5.4 mwcMarch 22, 2008
96 km SE of False Pass, Alaska · depth 10 km
M 4.9 mbMarch 18, 2008
103 km E of Chignik, Alaska · depth 36 km
M 4.6 mbMarch 17, 2008
87 km SSW of False Pass, Alaska · depth 23 km
M 5.1 mwMarch 14, 2008
81 km W of Tyonek, Alaska · depth 144 km
M 5.6 mwcMarch 11, 2008
95 km SSW of Nikolski, Alaska · depth 17 km
M 4.8 mbFebruary 29, 2008
60 km SSE of Akutan, Alaska · depth 49 km
M 4.8 mbFebruary 28, 2008
155 km S of False Pass, Alaska · depth 14 km
M 4.9 mbFebruary 26, 2008
73 km SE of Nikolski, Alaska · depth 28 km
M 5.0 mwcFebruary 17, 2008
68 km SSE of Nikolski, Alaska · depth 36 km
M 4.7 mbFebruary 11, 2008
117 km S of Unalaska, Alaska · depth 30 km
M 4.9 mwcFebruary 9, 2008
98 km E of Nikolski, Alaska · depth 26 km
M 4.8 mbFebruary 8, 2008
92 km NNE of Akutan, Alaska · depth 209 km
M 4.8 mbFebruary 1, 2008
282 km SSW of Nikolski, Alaska · depth 10 km
M 4.5 mbJanuary 27, 2008
87 km SE of Nikolski, Alaska · depth 4 km
M 4.6 mbJanuary 25, 2008
79 km SE of Nikolski, Alaska · depth 26 km
M 4.7 mbJanuary 5, 2008
74 km SSE of Nikolski, Alaska · depth 27 km
M 5.0 mwcJanuary 4, 2008
140 km SW of Nikolski, Alaska · depth 35 km
M 4.9 mbDecember 31, 2007
84 km SSE of Nikolski, Alaska · depth 18 km
M 4.5 mbDecember 30, 2007
75 km SSE of Nikolski, Alaska · depth 28 km
M 5.1 mbDecember 29, 2007
69 km SSE of Nikolski, Alaska · depth 29 km
M 5.9 mwcDecember 29, 2007
94 km SSE of Nikolski, Alaska · depth 16 km
M 4.6 mbDecember 28, 2007
77 km SSE of Nikolski, Alaska · depth 32 km
M 4.8 mbDecember 27, 2007
66 km SSE of Nikolski, Alaska · depth 27 km
M 5.2 mwcDecember 27, 2007
84 km SSE of Nikolski, Alaska · depth 15 km
M 5.4 mwcDecember 27, 2007
85 km SSE of Nikolski, Alaska · depth 9 km
M 4.5 mbDecember 27, 2007
69 km SSE of Nikolski, Alaska · depth 32 km
M 5.2 mbDecember 27, 2007
78 km SSE of Nikolski, Alaska · depth 10 km
M 5.6 mwcDecember 27, 2007
81 km SSE of Nikolski, Alaska · depth 18 km
M 4.9 mbDecember 27, 2007
97 km SE of Nikolski, Alaska · depth 27 km
M 4.7 mbDecember 27, 2007
87 km SE of Nikolski, Alaska · depth 13 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.