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 4.5 mbApril 25, 1995
93 km SE of Halibut Cove, Alaska · depth 55 km
M 4.5 mbApril 24, 1995
106 km SSW of Nikolski, Alaska · depth 33 km
M 4.5 mbApril 18, 1995
74 km E of Kobuk, Alaska · depth 8 km
M 4.5 mbApril 10, 1995
8 km W of Anchor Point, Alaska · depth 59 km
M 4.9 mbApril 6, 1995
132 km S of Akhiok, Alaska · depth 33 km
M 5.1 mbApril 1, 1995
105 km SE of Akutan, Alaska · depth 33 km
M 4.7 mbMarch 29, 1995
71 km ENE of Ugashik, Alaska · depth 112 km
M 4.6 mbMarch 28, 1995
64 km SE of Nikolski, Alaska · depth 33 km
M 5.3 mwMarch 26, 1995
66 km ESE of King Cove, Alaska · depth 33 km
M 5.5 mwMarch 26, 1995
65 km ESE of King Cove, Alaska · depth 38 km
M 4.6 mbMarch 20, 1995
Kodiak Island region, Alaska · depth 54 km
M 6.2 mwbMarch 14, 1995
70 km ESE of King Cove, Alaska · depth 35 km
M 5.0 mbFebruary 17, 1995
4 km N of Chickaloon, Alaska · depth 9 km
M 5.6 mwFebruary 12, 1995
67 km SE of Pedro Bay, Alaska · depth 110 km
M 4.5 mbFebruary 5, 1995
74 km SW of Unalaska, Alaska · depth 33 km
M 5.0 mwJanuary 25, 1995
135 km SE of Perryville, Alaska · depth 33 km
M 4.7 msJanuary 17, 1995
116 km SSE of False Pass, Alaska · depth 33 km
M 4.8 mbJanuary 1, 1995
54 km ENE of Pedro Bay, Alaska · depth 121 km
M 5.3 mwDecember 26, 1994
99 km ESE of Akutan, Alaska · depth 33 km
M 5.2 mwDecember 15, 1994
114 km SSE of Halibut Cove, Alaska · depth 41 km
M 4.6 mbDecember 10, 1994
22 km E of Port Alsworth, Alaska · depth 219 km
M 4.5 mlNovember 10, 1994
65 km W of Happy Valley, Alaska · depth 98 km
M 4.9 mbNovember 7, 1994
91 km SSW of Nikolski, Alaska · depth 33 km
M 4.6 mbNovember 7, 1994
32 km E of Denali National Park, Alaska · depth 12 km
M 4.9 mbNovember 4, 1994
72 km ENE of Kodiak, Alaska · depth 8 km
M 4.5 mbNovember 1, 1994
20 km N of Petersville, Alaska · depth 90 km
M 4.7 mbOctober 28, 1994
47 km S of Akutan, Alaska · depth 46 km
M 5.0 mbOctober 24, 1994
173 km SSE of Chignik, Alaska · depth 33 km
M 4.7 mbOctober 17, 1994
52 km E of Port Alsworth, Alaska · depth 124 km
M 4.6 mlSeptember 20, 1994
Gulf of Alaska · depth 10 km
M 5.4 mwSeptember 15, 1994
83 km SSE of King Cove, Alaska · depth 50 km
M 4.7 mbSeptember 5, 1994
251 km SE of Perryville, Alaska · depth 33 km
M 5.1 mwSeptember 5, 1994
34 km S of Chignik, Alaska · depth 62 km
M 5.3 mbSeptember 1, 1994
193 km ESE of Nikolski, Alaska · depth 33 km
M 5.1 mwSeptember 1, 1994
126 km SSW of Unalaska, Alaska · depth 33 km
M 4.6 mbAugust 23, 1994
42 km SW of Nanwalek, Alaska · depth 88 km
M 4.5 mbAugust 17, 1994
37 km SSE of Nikolski, Alaska · depth 33 km
M 5.0 mbAugust 9, 1994
124 km S of False Pass, Alaska · depth 33 km
M 4.5 mbAugust 9, 1994
84 km SSW of False Pass, Alaska · depth 33 km
M 5.3 mwJuly 29, 1994
75 km SSE of Nikolski, 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.