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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 mlJuly 16, 2004
22 km ESE of Eagle Village, Alaska · depth 10 km
M 4.7 mbJuly 10, 2004
141 km S of False Pass, Alaska · depth 32 km
M 4.8 mbJuly 9, 2004
89 km SSE of Old Harbor, Alaska · depth 25 km
M 4.9 mwJuly 4, 2004
110 km SW of Craig, Alaska · depth 13 km
M 4.9 mwJuly 2, 2004
112 km E of Chignik, Alaska · depth 38 km
M 6.8 mwJune 28, 2004
98 km WSW of Craig, Alaska · depth 20 km
M 5.0 mwJune 21, 2004
39 km SSE of Skwentna, Alaska · depth 80 km
M 4.5 mbJune 11, 2004
99 km S of False Pass, Alaska · depth 18 km
M 4.6 mbJune 11, 2004
100 km S of False Pass, Alaska · depth 21 km
M 5.6 mwbJune 4, 2004
52 km SSW of False Pass, Alaska · depth 73 km
M 4.6 mbJune 1, 2004
86 km S of False Pass, Alaska · depth 40 km
M 5.3 mwMay 30, 2004
57 km W of Tyonek, Alaska · depth 125 km
M 4.5 mbMay 8, 2004
105 km SE of Akutan, Alaska · depth 20 km
M 4.5 mbMay 1, 2004
89 km WNW of Tyonek, Alaska · depth 167 km
M 5.3 mwcApril 29, 2004
136 km E of McCarthy, Alaska · depth 1 km
M 4.6 mbApril 13, 2004
212 km SSW of Nikolski, Alaska · depth 45 km
M 4.8 mbApril 5, 2004
93 km SE of False Pass, Alaska · depth 45 km
M 4.5 mbMarch 27, 2004
136 km SSE of False Pass, Alaska · depth 33 km
M 4.8 mbMarch 22, 2004
90 km SW of False Pass, Alaska · depth 30 km
M 4.6 mbMarch 19, 2004
74 km WSW of Karluk, Alaska · depth 1 km
M 4.6 mbMarch 18, 2004
Gulf of Alaska · depth 12 km
M 4.5 mbMarch 10, 2004
83 km W of Arctic Village, Alaska · depth 20 km
M 5.0 mwMarch 5, 2004
21 km WNW of Kalifornsky, Alaska · depth 62 km
M 4.8 mwFebruary 23, 2004
29 km E of Nabesna, Alaska · depth 2 km
M 5.5 mwFebruary 10, 2004
6 km WNW of Nanwalek, Alaska · depth 66 km
M 5.0 mwcJanuary 31, 2004
129 km SSE of False Pass, Alaska · depth 33 km
M 4.6 mbJanuary 30, 2004
115 km SSW of Akhiok, Alaska · depth 8 km
M 5.4 mwJanuary 27, 2004
113 km SSE of Ugashik, Alaska · depth 44 km
M 4.5 mbJanuary 20, 2004
53 km SE of Akutan, Alaska · depth 36 km
M 5.5 mwJanuary 20, 2004
82 km ENE of Ouzinkie, Alaska · depth 46 km
M 4.6 mbJanuary 4, 2004
151 km S of False Pass, Alaska · depth 23 km
M 4.9 mwDecember 10, 2003
48 km ESE of Ugashik, Alaska · depth 1 km
M 4.5 mbDecember 10, 2003
132 km ESE of Akutan, Alaska · depth 33 km
M 4.8 mbDecember 9, 2003
74 km SE of Denali National Park, Alaska · depth 124 km
M 4.5 mbNovember 27, 2003
146 km S of False Pass, Alaska · depth 33 km
M 5.7 mwbNovember 27, 2003
139 km S of False Pass, Alaska · depth 33 km
M 4.5 mwNovember 21, 2003
55 km SE of Denali National Park, Alaska · depth 135 km
M 4.6 mbNovember 10, 2003
77 km SSE of Akutan, Alaska · depth 23 km
M 4.6 mbOctober 6, 2003
124 km ESE of Nikolski, Alaska · depth 33 km
M 5.1 mwcOctober 3, 2003
127 km ESE of Nikolski, Alaska · depth 33 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.