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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 mbDecember 17, 2024
74 km SSW of Unalaska, Alaska · depth 49 km
M 5.0 mwwDecember 9, 2024
97 km SE of False Pass, Alaska · depth 35 km
M 5.6 mwwDecember 5, 2024
165 km SW of Nikolski, Alaska · depth 38 km
M 4.5 mbNovember 2, 2024
192 km SSE of Unalaska, Alaska · depth 15 km
M 5.0 mwwOctober 24, 2024
129 km WSW of Nikolski, Alaska · depth 54 km
M 5.3 mwwOctober 16, 2024
216 km SE of Akutan, Alaska · depth 10 km
M 4.6 mwwOctober 11, 2024
66 km ENE of Chase, Alaska · depth 70 km
M 4.7 mwwOctober 10, 2024
36 km S of Sand Point, Alaska · depth 53 km
M 5.0 mwwOctober 9, 2024
174 km SW of Nikolski, Alaska · depth 35 km
M 4.5 mwrOctober 6, 2024
78 km SSW of Unalaska, Alaska · depth 52 km
M 4.8 mwrOctober 6, 2024
77 km SSW of Unalaska, Alaska · depth 56 km
M 5.4 mwwOctober 5, 2024
85 km SSW of Unalaska, Alaska · depth 41 km
M 4.6 mbOctober 5, 2024
88 km SSW of Unalaska, Alaska · depth 47 km
M 4.5 mbSeptember 14, 2024
201 km SE of Perryville, Alaska · depth 2 km
M 4.5 mwrSeptember 1, 2024
1 km E of Homer, Alaska · depth 48 km
M 4.5 mwrAugust 27, 2024
70 km SE of False Pass, Alaska · depth 62 km
M 5.1 mwwAugust 26, 2024
95 km SSE of Sand Point, Alaska · depth 40 km
M 5.6 mwwAugust 1, 2024
146 km SSE of Sand Point, Alaska · depth 15 km
M 4.6 mwrJuly 31, 2024
68 km SSE of Yakutat, Alaska · depth 8 km
M 4.5 mwwJuly 27, 2024
47 km NW of Ninilchik, Alaska · depth 88 km
M 4.7 mwrJuly 23, 2024
143 km SE of Perryville, Alaska · depth 10 km
M 6.0 mwrJuly 19, 2024
168 km SW of Nikolski, Alaska · depth 41 km
M 4.7 mbJuly 13, 2024
87 km SE of Akutan, Alaska · depth 30 km
M 4.6 mwrJuly 3, 2024
169 km SW of Nikolski, Alaska · depth 42 km
M 4.9 mwwJune 27, 2024
161 km SW of Nikolski, Alaska · depth 10 km
M 4.6 mwwJune 13, 2024
73 km WNW of Karluk, Alaska · depth 88 km
M 4.6 mbMay 27, 2024
205 km SE of Perryville, Alaska · depth 25 km
M 4.5 mwrMay 24, 2024
142 km S of False Pass, Alaska · depth 14 km
M 4.5 mbMay 21, 2024
206 km SE of Chenega, Alaska · depth 13 km
M 4.5 mbMay 19, 2024
159 km WSW of Nikolski, Alaska · depth 46 km
M 5.0 mwrMay 19, 2024
159 km WSW of Nikolski, Alaska · depth 36 km
M 6.0 mwwMay 19, 2024
169 km SW of Nikolski, Alaska · depth 28 km
M 4.6 mwwMay 14, 2024
91 km W of Nikolski, Alaska · depth 84 km
M 4.8 mwwMay 11, 2024
57 km W of Anchor Point, Alaska · depth 99 km
M 5.2 mwwMay 5, 2024
187 km SE of Akutan, Alaska · depth 10 km
M 4.7 mbMay 2, 2024
107 km SSW of Nikolski, Alaska · depth 10 km
M 5.4 mwwMay 2, 2024
104 km SSW of Nikolski, Alaska · depth 18 km
M 4.5 mbMay 2, 2024
101 km SSW of Nikolski, Alaska · depth 16 km
M 5.3 mwwMay 2, 2024
111 km SSW of Nikolski, Alaska · depth 13 km
M 5.1 mbMay 2, 2024
110 km SSW of Nikolski, Alaska · depth 10 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.