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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 mbFebruary 9, 1998
74 km SW of Karluk, Alaska · depth 54 km
M 4.7 mbJanuary 30, 1998
57 km N of Karluk, Alaska · depth 88 km
M 4.6 mbJanuary 29, 1998
49 km SE of Nikolski, Alaska · depth 33 km
M 5.2 mwcJanuary 26, 1998
87 km SSE of Nikolski, Alaska · depth 33 km
M 4.7 mbJanuary 26, 1998
54 km SSE of Nikolski, Alaska · depth 33 km
M 4.6 mbJanuary 24, 1998
61 km SSE of Nikolski, Alaska · depth 33 km
M 4.7 mbJanuary 24, 1998
63 km SE of Nikolski, Alaska · depth 33 km
M 4.5 mbJanuary 23, 1998
47 km SSE of Nikolski, Alaska · depth 33 km
M 5.3 mwcJanuary 23, 1998
77 km SSE of Nikolski, Alaska · depth 33 km
M 5.4 mwcJanuary 23, 1998
70 km SSE of Nikolski, Alaska · depth 33 km
M 4.6 mbJanuary 23, 1998
54 km SSE of Nikolski, Alaska · depth 33 km
M 4.9 mbJanuary 23, 1998
71 km SSE of Nikolski, Alaska · depth 33 km
M 5.2 mbJanuary 23, 1998
71 km S of Nikolski, Alaska · depth 33 km
M 5.9 mwcJanuary 23, 1998
64 km SSE of Nikolski, Alaska · depth 33 km
M 4.9 mbJanuary 16, 1998
129 km E of Chignik, Alaska · depth 44 km
M 5.1 mbJanuary 16, 1998
10 km W of Akutan, Alaska · depth 134 km
M 4.7 mbJanuary 10, 1998
55 km S of Glacier View, Alaska · depth 34 km
M 4.5 mbJanuary 8, 1998
99 km SSW of False Pass, Alaska · depth 10 km
M 4.5 mbJanuary 5, 1998
93 km ESE of Nikolski, Alaska · depth 33 km
M 4.6 mbJanuary 4, 1998
106 km SSW of False Pass, Alaska · depth 10 km
M 4.5 mbJanuary 3, 1998
98 km E of Akutan, Alaska · depth 10 km
M 5.8 mwcJanuary 3, 1998
85 km SW of False Pass, Alaska · depth 10 km
M 4.8 mbDecember 30, 1997
125 km SW of Nikolski, Alaska · depth 33 km
M 4.5 mbDecember 27, 1997
90 km E of McCarthy, Alaska · depth -3 km
M 4.7 mbDecember 25, 1997
43 km SSE of Halibut Cove, Alaska · depth 35 km
M 5.5 mwcDecember 22, 1997
64 km SSW of Sand Point, Alaska · depth 33 km
M 4.5 mbDecember 15, 1997
17 km E of Golovin, Alaska · depth 25 km
M 4.9 mbDecember 5, 1997
5 km SSW of Girdwood, Alaska · depth 36 km
M 4.6 mbNovember 29, 1997
19 km E of Chenega, Alaska · depth 20 km
M 5.1 mwcNovember 24, 1997
129 km SSW of Nikolski, Alaska · depth 33 km
M 5.2 mwcNovember 23, 1997
114 km SW of Nikolski, Alaska · depth 33 km
M 4.5 mbNovember 17, 1997
99 km SW of Nikolski, Alaska · depth 33 km
M 5.2 mwcNovember 17, 1997
112 km SW of Nikolski, Alaska · depth 33 km
M 5.4 mwcNovember 17, 1997
119 km SW of Nikolski, Alaska · depth 33 km
M 4.5 mbNovember 13, 1997
113 km ESE of Chignik, Alaska · depth 50 km
M 4.8 mbNovember 7, 1997
207 km SSE of Unalaska, Alaska · depth 39 km
M 4.9 mbNovember 5, 1997
19 km ENE of Ruby, Alaska · depth 10 km
M 4.5 mbNovember 1, 1997
58 km SE of Nikolski, Alaska · depth 33 km
M 4.7 mbOctober 27, 1997
180 km ENE of Atka, Alaska · depth 141 km
M 4.6 mbOctober 23, 1997
22 km SSE of Susitna, Alaska · depth 44 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.