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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 4.6 mbMarch 25, 2001
Central Alaska · depth 22 km
M 4.7 mbMarch 23, 2001
115 km SE of Chenega, Alaska · depth 9 km
M 4.8 mbMarch 19, 2001
135 km SW of Nikolski, Alaska · depth 33 km
M 4.5 mbMarch 16, 2001
51 km W of Happy Valley, Alaska · depth 75 km
M 4.6 mbMarch 4, 2001
59 km ENE of Ugashik, Alaska · depth 129 km
M 4.6 mbFebruary 24, 2001
52 km N of Larsen Bay, Alaska · depth 55 km
M 4.7 mbFebruary 17, 2001
161 km SSW of Hydaburg, Alaska · depth 10 km
M 6.2 mwcFebruary 17, 2001
151 km SSW of Hydaburg, Alaska · depth 20 km
M 5.2 mwFebruary 11, 2001
31 km S of Old Harbor, Alaska · depth 38 km
M 4.6 mbFebruary 9, 2001
64 km SE of Pope-Vannoy Landing, Alaska · depth 97 km
M 5.5 mwJanuary 25, 2001
39 km WNW of Ninilchik, Alaska · depth 83 km
M 5.0 mbJanuary 24, 2001
156 km SE of Chignik, Alaska · depth 22 km
M 4.9 mbJanuary 11, 2001
72 km SE of Akhiok, Alaska · depth 42 km
M 4.9 mbJanuary 10, 2001
32 km SSW of Old Harbor, Alaska · depth 39 km
M 5.3 mbJanuary 10, 2001
55 km S of Old Harbor, Alaska · depth 32 km
M 5.0 mbJanuary 10, 2001
46 km S of Old Harbor, Alaska · depth 1 km
M 6.9 mwJanuary 10, 2001
47 km S of Old Harbor, Alaska · depth 36 km
M 4.6 mbJanuary 8, 2001
47 km SSW of Nikolski, Alaska · depth 33 km
M 5.5 mwDecember 22, 2000
33 km NE of Chignik, Alaska · depth 92 km
M 4.5 mbDecember 14, 2000
41 km ESE of Pedro Bay, Alaska · depth 115 km
M 5.0 mbDecember 6, 2000
59 km WSW of Ferry, Alaska · depth 12 km
M 5.9 mwcDecember 5, 2000
79 km ESE of Nikolski, Alaska · depth 33 km
M 5.8 mlNovember 29, 2000
52 km WSW of Ferry, Alaska · depth 16 km
M 4.6 mbNovember 25, 2000
107 km NW of Diomede, Alaska · depth 10 km
M 4.6 mlNovember 9, 2000
53 km S of Tanana, Alaska · depth 33 km
M 4.8 mbNovember 9, 2000
35 km WNW of Anchor Point, Alaska · depth 92 km
M 4.6 mbNovember 6, 2000
115 km SSE of Akhiok, Alaska · depth 33 km
M 4.5 mbNovember 6, 2000
110 km SSE of Akhiok, Alaska · depth 6 km
M 5.8 mwNovember 6, 2000
113 km SSE of Akhiok, Alaska · depth 21 km
M 4.8 mbNovember 5, 2000
106 km W of Nikolski, Alaska · depth 93 km
M 5.2 mwNovember 4, 2000
105 km SSE of Yakutat, Alaska · depth 27 km
M 4.5 mbNovember 4, 2000
62 km N of Petersville, Alaska · depth 132 km
M 4.9 mbNovember 3, 2000
134 km WSW of Nikolski, Alaska · depth 65 km
M 4.6 mbNovember 1, 2000
47 km ENE of Akutan, Alaska · depth 99 km
M 4.6 msOctober 28, 2000
143 km WSW of Nikolski, Alaska · depth 33 km
M 4.8 mbOctober 13, 2000
122 km ESE of Akutan, Alaska · depth 33 km
M 4.6 mbOctober 12, 2000
116 km SSE of Old Harbor, Alaska · depth 23 km
M 5.3 mwcSeptember 30, 2000
290 km SW of Yakutat, Alaska · depth 33 km
M 5.1 mwSeptember 25, 2000
32 km NNE of Larsen Bay, Alaska · depth 46 km
M 5.0 mwSeptember 19, 2000
27 km NNW of Akhiok, Alaska · depth 25 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.