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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 mbFebruary 24, 2005
60 km SSE of King Cove, Alaska · depth 59 km
M 4.7 mbFebruary 20, 2005
121 km SSE of Akhiok, Alaska · depth 25 km
M 4.8 mwFebruary 16, 2005
7 km ESE of Point MacKenzie, Alaska · depth 35 km
M 5.0 mwFebruary 11, 2005
66 km NNE of Yakutat, Alaska · depth 12 km
M 5.4 mwFebruary 11, 2005
65 km NNE of Yakutat, Alaska · depth 15 km
M 4.6 mbJanuary 23, 2005
111 km SSE of Akhiok, Alaska · depth 27 km
M 4.5 mbJanuary 22, 2005
92 km SSW of Nikolski, Alaska · depth 37 km
M 4.7 mwJanuary 13, 2005
49 km NNE of Chenega, Alaska · depth 23 km
M 5.1 mwDecember 21, 2004
52 km NNE of Chenega, Alaska · depth 11 km
M 4.7 mbDecember 20, 2004
125 km SE of Perryville, Alaska · depth 3 km
M 5.2 mwDecember 19, 2004
116 km SE of Perryville, Alaska · depth 10 km
M 4.5 mbDecember 5, 2004
96 km SE of False Pass, Alaska · depth 45 km
M 4.9 mbDecember 5, 2004
26 km E of Cantwell, Alaska · depth 11 km
M 4.8 mwDecember 4, 2004
10 km NNW of Cantwell, Alaska · depth 6 km
M 4.6 mbNovember 23, 2004
106 km E of Akutan, Alaska · depth 32 km
M 4.5 mbNovember 22, 2004
112 km SE of Akhiok, Alaska · depth 22 km
M 4.6 mbNovember 22, 2004
109 km SE of Akhiok, Alaska · depth 18 km
M 5.0 mwNovember 8, 2004
56 km SSE of Denali National Park, Alaska · depth 10 km
M 4.7 mbNovember 3, 2004
107 km SE of Akhiok, Alaska · depth 20 km
M 4.7 mbOctober 27, 2004
90 km SSE of Akhiok, Alaska · depth 20 km
M 4.6 mbOctober 24, 2004
58 km SSW of False Pass, Alaska · depth 73 km
M 4.8 mbOctober 21, 2004
66 km SE of Nikolski, Alaska · depth 37 km
M 4.7 mbOctober 15, 2004
39 km W of Nikolski, Alaska · depth 80 km
M 4.5 mbOctober 2, 2004
Gulf of Alaska · depth 10 km
M 4.5 mbOctober 2, 2004
39 km SE of Akutan, Alaska · depth 59 km
M 4.6 mbSeptember 29, 2004
55 km SSE of Sand Point, Alaska · depth 49 km
M 4.6 mwSeptember 20, 2004
72 km E of Chignik, Alaska · depth 38 km
M 4.6 mbSeptember 19, 2004
83 km NW of Nelson Lagoon, Alaska · depth 197 km
M 4.7 mbSeptember 12, 2004
97 km SSW of Unalaska, Alaska · depth 36 km
M 4.7 mbSeptember 9, 2004
75 km SSW of Unalaska, Alaska · depth 55 km
M 4.6 mbSeptember 5, 2004
133 km WSW of Nikolski, Alaska · depth 47 km
M 5.1 mwAugust 25, 2004
48 km SSE of Nelchina, Alaska · depth 40 km
M 4.8 mwcAugust 20, 2004
216 km SE of Nikolski, Alaska · depth 27 km
M 4.8 mbAugust 13, 2004
110 km ESE of Akutan, Alaska · depth 43 km
M 4.5 mbAugust 8, 2004
206 km SE of Nikolski, Alaska · depth 28 km
M 6.0 mwbAugust 7, 2004
218 km SE of Nikolski, Alaska · depth 8 km
M 4.7 mwAugust 4, 2004
26 km WSW of Covenant Life, Alaska · depth 2 km
M 4.6 mbJuly 23, 2004
39 km SSE of Sand Point, Alaska · depth 49 km
M 4.5 mbJuly 17, 2004
183 km E of Atka, Alaska · depth 39 km
M 4.7 mbJuly 17, 2004
77 km SSE of Pope-Vannoy Landing, Alaska · depth 103 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.