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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 4.8 mbDecember 26, 2007
79 km SSE of Nikolski, Alaska · depth 31 km
M 4.7 mbDecember 26, 2007
85 km SSE of Nikolski, Alaska · depth 25 km
M 4.5 mbDecember 26, 2007
78 km SE of Nikolski, Alaska · depth 23 km
M 4.7 mbDecember 26, 2007
83 km SE of Nikolski, Alaska · depth 18 km
M 5.2 mbDecember 26, 2007
69 km SE of Nikolski, Alaska · depth 37 km
M 6.4 mwcDecember 26, 2007
60 km SE of Nikolski, Alaska · depth 25 km
M 4.8 mbDecember 23, 2007
110 km SE of Akutan, Alaska · depth 25 km
M 4.8 mbDecember 4, 2007
193 km S of Unalaska, Alaska · depth 35 km
M 4.6 mbDecember 1, 2007
270 km SW of Yakutat, Alaska · depth 10 km
M 4.9 mbNovember 30, 2007
88 km SSE of False Pass, Alaska · depth 45 km
M 4.6 mwNovember 29, 2007
71 km ESE of Chalkyitsik, Alaska · depth 6 km
M 5.0 mwNovember 28, 2007
16 km ESE of Skwentna, Alaska · depth 70 km
M 4.8 mbNovember 8, 2007
24 km WSW of McKinley Park, Alaska · depth 123 km
M 4.5 mbNovember 5, 2007
136 km SSW of Nikolski, Alaska · depth 10 km
M 4.7 mbNovember 3, 2007
114 km SSE of Ugashik, Alaska · depth 73 km
M 4.7 mbOctober 30, 2007
180 km WSW of Nikolski, Alaska · depth 51 km
M 4.9 mbOctober 26, 2007
155 km SSE of King Cove, Alaska · depth 30 km
M 5.5 mwcOctober 26, 2007
71 km SSE of King Cove, Alaska · depth 43 km
M 5.0 mwcOctober 16, 2007
60 km WNW of Nelson Lagoon, Alaska · depth 191 km
M 5.2 mbOctober 13, 2007
25 km SW of Skwentna, Alaska · depth 96 km
M 4.6 mbOctober 13, 2007
112 km SSE of Old Harbor, Alaska · depth 16 km
M 4.9 mwOctober 11, 2007
127 km SE of Akhiok, Alaska · depth 23 km
M 4.9 mbOctober 10, 2007
106 km SSE of Old Harbor, Alaska · depth 19 km
M 4.8 mbOctober 10, 2007
147 km SSE of Old Harbor, Alaska · depth 4 km
M 4.8 mbOctober 9, 2007
104 km SSE of Old Harbor, Alaska · depth 19 km
M 5.2 mwOctober 3, 2007
82 km ENE of Ouzinkie, Alaska · depth 46 km
M 4.9 mbOctober 3, 2007
13 km NNW of Cantwell, Alaska · depth 10 km
M 4.5 mbOctober 2, 2007
Alaska Peninsula · depth 24 km
M 4.6 msOctober 2, 2007
Alaska Peninsula · depth 29 km
M 5.1 mwOctober 2, 2007
116 km SSE of King Cove, Alaska · depth 42 km
M 5.4 mwcOctober 2, 2007
78 km SE of King Cove, Alaska · depth 30 km
M 5.6 mbOctober 2, 2007
81 km SSE of King Cove, Alaska · depth 47 km
M 4.5 mlOctober 2, 2007
101 km SSE of King Cove, Alaska · depth 26 km
M 6.3 mwcOctober 2, 2007
72 km SSE of King Cove, Alaska · depth 32 km
M 4.5 mbSeptember 20, 2007
38 km SSE of Nikolski, Alaska · depth 44 km
M 4.5 mwSeptember 19, 2007
30 km NNE of Valdez, Alaska · depth 31 km
M 4.5 mbSeptember 12, 2007
4 km ESE of Badger, Alaska · depth 1 km
M 4.8 mbSeptember 5, 2007
61 km SW of Sand Point, Alaska · depth 45 km
M 5.0 mwSeptember 3, 2007
38 km W of Akhiok, Alaska · depth 10 km
M 4.5 mbAugust 20, 2007
215 km SE of Akutan, Alaska · depth 22 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.