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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 mwJanuary 14, 2013
116 km WSW of Craig, Alaska · depth 14 km
M 5.0 mwJanuary 13, 2013
86 km ENE of Port Alsworth, Alaska · depth 134 km
M 4.8 mbJanuary 10, 2013
Fox Islands, Aleutian Islands, Alaska · depth 26 km
M 4.7 mbJanuary 9, 2013
Southeastern Alaska · depth 10 km
M 5.0 mbJanuary 8, 2013
129 km WSW of Nikolski, Alaska · depth 67 km
M 4.9 mwJanuary 8, 2013
98 km SSW of Port Alexander, Alaska · depth 20 km
M 4.5 mbJanuary 6, 2013
67 km SSW of Port Alexander, Alaska · depth 20 km
M 5.2 mbJanuary 5, 2013
107 km WSW of Craig, Alaska · depth 10 km
M 4.7 mbJanuary 5, 2013
off the coast of Southeastern Alaska · depth 10 km
M 4.5 mbJanuary 5, 2013
115 km WSW of Craig, Alaska · depth 1 km
M 4.7 mbJanuary 5, 2013
79 km SSW of Port Alexander, Alaska · depth 20 km
M 4.7 mlJanuary 5, 2013
91 km SW of Port Alexander, Alaska · depth 12 km
M 7.5 mwJanuary 5, 2013
110 km SW of Edna Bay, Alaska · depth 9 km
M 4.7 mbDecember 25, 2012
Southern Alaska · depth 37 km
M 4.6 mbDecember 16, 2012
132 km ESE of Nikolski, Alaska · depth 23 km
M 4.6 mbDecember 14, 2012
55 km NNE of Chase, Alaska · depth 82 km
M 4.8 mbDecember 9, 2012
99 km WSW of Nikolski, Alaska · depth 26 km
M 5.8 mwDecember 4, 2012
20 km ENE of Beluga, Alaska · depth 64 km
M 5.4 mwDecember 1, 2012
81 km WNW of Aleneva, Alaska · depth 85 km
M 6.3 mwwNovember 12, 2012
266 km SW of Yakutat, Alaska · depth 9 km
M 4.5 mbOctober 31, 2012
190 km E of Atka, Alaska · depth 42 km
M 4.7 mbOctober 24, 2012
55 km SSE of False Pass, AK · depth 68 km
M 4.6 mbOctober 3, 2012
80 km S of Unalaska, Alaska · depth 26 km
M 4.9 mbSeptember 25, 2012
94 km SSW of False Pass, Alaska · depth 55 km
M 5.2 mwSeptember 18, 2012
1 km ESE of Akhiok, Alaska · depth 39 km
M 4.5 mbSeptember 4, 2012
62 km NW of Aleneva, Alaska · depth 62 km
M 4.6 mbAugust 19, 2012
224 km S of Sand Point, Alaska · depth 6 km
M 4.5 mbAugust 11, 2012
83 km SSE of Akutan, Alaska · depth 22 km
M 6.2 mwwAugust 10, 2012
102 km ESE of Nikolski, Alaska · depth 13 km
M 4.8 mwAugust 9, 2012
41 km NE of Chenega, Alaska · depth 1 km
M 5.2 mwbAugust 8, 2012
68 km SW of Sand Point, Alaska · depth 43 km
M 4.6 mbAugust 3, 2012
43 km SSW of Ugashik, Alaska · depth 3 km
M 4.8 mwAugust 3, 2012
44 km SSW of Ugashik, Alaska · depth 2 km
M 5.0 mwJuly 20, 2012
79 km SE of Akhiok, Alaska · depth 18 km
M 4.5 mbJuly 19, 2012
22 km SSE of Pope-Vannoy Landing, Alaska · depth 9 km
M 4.8 mbJuly 13, 2012
91 km NW of False Pass, Alaska · depth 185 km
M 4.7 mwJuly 6, 2012
35 km S of Skwentna, Alaska · depth 85 km
M 4.5 mbJune 29, 2012
189 km E of Atka, Alaska · depth 26 km
M 4.9 mwJune 22, 2012
53 km SSE of Old Harbor, Alaska · depth 15 km
M 4.6 mbJune 17, 2012
74 km SE of Unalaska, Alaska · depth 26 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.