Home / Earthquakes / Alaska
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
'00
'10
'20
'30
'40
'50
'60
'70
'80
'90
'00
'10
'20
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 mbJune 27, 2015
149 km SW of Nikolski, Alaska · depth 39 km
M 5.0 mbJune 27, 2015
147 km S of False Pass, Alaska · depth 15 km
M 4.8 mbJune 26, 2015
25 km N of Larsen Bay, Alaska · depth 28 km
M 5.8 mwJune 24, 2015
46 km SW of Skwentna, Alaska · depth 114 km
M 5.2 mbJune 13, 2015
121 km E of Chignik, Alaska · depth 77 km
M 4.9 mbMay 30, 2015
121 km E of Chignik, Alaska · depth 75 km
M 6.8 mwMay 29, 2015
117 km SSE of Ugashik, Alaska · depth 73 km
M 4.6 mbMay 27, 2015
99 km SSE of King Cove, Alaska · depth 33 km
M 4.6 mbMay 25, 2015
82 km SSW of Nikolski, Alaska · depth 47 km
M 4.8 mbMay 25, 2015
83 km SSW of Nikolski, Alaska · depth 42 km
M 4.7 mbMay 20, 2015
83 km S of Sand Point, Alaska · depth 32 km
M 4.8 mbMay 15, 2015
125 km SSE of Perryville, Alaska · depth 1 km
M 4.5 mlMay 11, 2015
49 km SE of Cantwell, Alaska · depth 67 km
M 4.7 mlApril 25, 2015
46 km NE of Pedro Bay, Alaska · depth 170 km
M 4.6 mlApril 3, 2015
64 km S of Arctic Village, Alaska · depth 11 km
M 5.0 mbMarch 23, 2015
54 km SSW of Nikolski, Alaska · depth 35 km
M 5.3 mwwMarch 12, 2015
223 km S of False Pass, Alaska · depth 10 km
M 4.5 mlMarch 5, 2015
38 km ENE of Chase, Alaska · depth 66 km
M 4.5 mwFebruary 18, 2015
43 km WNW of Elfin Cove, Alaska · depth 3 km
M 4.6 mbFebruary 17, 2015
127 km SE of Akutan, Alaska · depth 30 km
M 4.5 mbFebruary 14, 2015
76 km SW of Nikolski, Alaska · depth 43 km
M 4.7 mbFebruary 10, 2015
71 km ESE of Sand Point, Alaska · depth 20 km
M 4.5 mbFebruary 9, 2015
33 km E of Saint George, Alaska · depth 8 km
M 5.3 mbFebruary 3, 2015
75 km SSE of Nikolski, Alaska · depth 10 km
M 5.5 mwwFebruary 3, 2015
81 km SSE of Nikolski, Alaska · depth 14 km
M 4.5 mbFebruary 2, 2015
23 km E of Saint George, Alaska · depth 10 km
M 4.6 mbFebruary 1, 2015
49 km ESE of Saint George, Alaska · depth 10 km
M 5.3 mwbFebruary 1, 2015
25 km ENE of Saint George, Alaska · depth 10 km
M 5.1 mwbFebruary 1, 2015
28 km E of Saint George, Alaska · depth 10 km
M 4.5 mbJanuary 31, 2015
24 km E of Saint George, Alaska · depth 16 km
M 5.1 mbJanuary 31, 2015
25 km E of Saint George, Alaska · depth 12 km
M 4.6 mbJanuary 31, 2015
15 km E of Saint George, Alaska · depth 11 km
M 5.4 mwbJanuary 31, 2015
26 km E of Saint George, Alaska · depth 6 km
M 4.6 mbJanuary 31, 2015
Pribilof Islands, Alaska region · depth 7 km
M 4.8 mbJanuary 31, 2015
Pribilof Islands, Alaska region · depth 19 km
M 5.3 mwcJanuary 31, 2015
38 km E of Saint George, Alaska · depth 10 km
M 4.8 mbJanuary 31, 2015
38 km E of Saint George, Alaska · depth 8 km
M 4.5 mbJanuary 31, 2015
28 km E of Saint George, Alaska · depth 6 km
M 4.7 mbDecember 22, 2014
101 km SSE of False Pass, Alaska · depth 27 km
M 5.1 mbDecember 2, 2014
215 km ESE of Atka, Alaska · depth 53 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.