Seismic history
Major earthquakes, volcanic eruptions and geological events in United States, 1900–2026, with sources and detailed information.
Total earthquakes
232
M5+
Strongest
M9.2
M7+ events
70
Volcanic events
1
Tsunami events
23
| Date | Magnitude | Location | Depth | Source |
|---|---|---|---|---|
| 1964-03-28 | 9.2 | Prince William Sound, Alaska, USA🌊 | 25 km | USGS |
| 1946-04-01 | 8.6 | The 1946 Unimak Island, Alaska Earthquake | 15 km | USGS Earthquake Hazards Program |
| 1957-03-09 | 8.6 | 1957 Atka, Alaska Earthquake | 25 km | USGS Earthquake Hazards Program |
| 1938-11-10 | 8.2 | 1938 Semidi Islands, Alaska Earthquake | 35 km | USGS Earthquake Hazards Program |
| 2021-07-29 | 8.2 | 2021 Chignik, Alaska Earthquake🌊 | 35 km | USGS Earthquake Hazards Program |
| 1949-08-22 | 8.0 | The 1949 Haida Gwaii, Canada Earthquake | 10 km | USGS Earthquake Hazards Program |
| 1986-05-07 | 8.0 | 1986 Atka, Alaska Earthquake | 33 km | USGS Earthquake Hazards Program |
| 1906-04-18 | 7.9 | San Francisco, California, USA | 8 km | USGS |
| 1996-06-10 | 7.9 | 77 km WSW of Adak, Alaska | 33 km | USGS Earthquake Hazards Program |
| 2002-11-03 | 7.9 | 2002 Denali Fault, Alaska Earthquake | 4 km | USGS Earthquake Hazards Program |
| 1987-11-30 | 7.9 | 200 km WSW of Yakutat, Alaska | 10 km | USGS Earthquake Hazards Program |
| 2018-01-23 | 7.9 | 261 km SE of Chiniak, Alaska🌊 | 14 km | USGS Earthquake Hazards Program |
| 1900-10-09 | 7.9 | Kodiak Island region, Alaska | 20 km | USGS Earthquake Hazards Program |
| 1958-07-10 | 7.8 | 22 km W of Elfin Cove, Alaska | 10 km | USGS Earthquake Hazards Program |
| 1929-03-07 | 7.8 | 234 km SSW of Nikolski, Alaska | 15 km | USGS Earthquake Hazards Program |
| 2012-10-28 | 7.8 | 206 km SW of Prince Rupert, Canada | 14 km | USGS Earthquake Hazards Program |
| 2020-07-22 | 7.8 | 2020 Perryville, Alaska Earthquake🌊 | 28 km | USGS Earthquake Hazards Program |
| 1965-07-02 | 7.8 | 81 km E of Nikolski, Alaska | 39 km | USGS Earthquake Hazards Program |
| 1988-03-06 | 7.8 | Gulf of Alaska | 10 km | USGS Earthquake Hazards Program |
| 1972-07-30 | 7.6 | 55 km SW of Sitka, Alaska | 20 km | USGS Earthquake Hazards Program |
| 1905-02-14 | 7.6 | 5 km WNW of Adak, Alaska | 35 km | USGS Earthquake Hazards Program |
| 2013-01-05 | 7.5 | 110 km SW of Edna Bay, Alaska | 9 km | USGS Earthquake Hazards Program |
| 1952-07-21 | 7.5 | The 1952 Kern County, California Earthquake | 6 km | USGS Earthquake Hazards Program |
| 1946-06-23 | 7.5 | The 1946 Vancouver Island, Canada Earthquake | 30 km | USGS Earthquake Hazards Program |
| 1929-05-26 | 7.5 | 262 km W of Port McNeill, Canada | 15 km | USGS Earthquake Hazards Program |
| 1907-10-16 | 7.4 | 69 km SSW of La Libertad, Mexico | 15 km | USGS Earthquake Hazards Program |
| 1922-01-31 | 7.4 | 123 km W of Big Lagoon, California | 15 km | USGS Earthquake Hazards Program |
| 1917-05-31 | 7.4 | 54 km SE of Sand Point, Alaska | 35 km | USGS Earthquake Hazards Program |
| 1916-04-18 | 7.4 | 133 km WNW of Nikolski, Alaska | 140 km | USGS Earthquake Hazards Program |
| 2025-07-16 | 7.3 | 2025 Sand Point, Alaska Earthquake🌊 | 38 km | USGS Earthquake Hazards Program |
| 1904-08-27 | 7.3 | Central Alaska | - | USGS Earthquake Hazards Program |
| 1970-06-24 | 7.3 | 288 km S of Prince Rupert, Canada | 20 km | USGS Earthquake Hazards Program |
| 1996-06-10 | 7.3 | 46 km SSW of Adak, Alaska | 26 km | USGS Earthquake Hazards Program |
| 2011-06-24 | 7.3 | Fox Islands, Aleutian Islands, Alaska | 52 km | USGS Earthquake Hazards Program |
| 1992-06-28 | 7.3 | The 1992 Landers, California Earthquake | -0 km | USGS Earthquake Hazards Program |
| 1906-04-10 | 7.3 | 61 km NNW of La Paz, Mexico | 15 km | USGS Earthquake Hazards Program |
| 1927-10-24 | 7.2 | 31 km SSW of Pelican, Alaska | 10 km | USGS Earthquake Hazards Program |
| 1954-04-29 | 7.2 | 94 km SSW of La Libertad, Mexico | 10 km | USGS Earthquake Hazards Program |
| 1912-07-07 | 7.2 | Mount McKinley (Denali) area, Alaska | 3 km | USGS Earthquake Hazards Program |
| 2023-07-16 | 7.2 | 2023 Sand Point, Alaska Earthquake🌊 | 25 km | USGS Earthquake Hazards Program |
| 1980-11-08 | 7.2 | The 1980 Eureka, California Earthquake | 19 km | USGS Earthquake Hazards Program |
| 2005-06-15 | 7.2 | 153 km W of Big Lagoon, California | 16 km | USGS Earthquake Hazards Program |
| 2007-12-19 | 7.2 | 207 km WSW of Adak, Alaska | 34 km | USGS Earthquake Hazards Program |
| 1959-08-18 | 7.2 | The 1959 Hebgen Lake, Montana Earthquake | 12 km | USGS Earthquake Hazards Program |
| 2010-04-04 | 7.2 | The 2010 Sierra El Mayor, B.C., Mexico Earthquake | 10 km | USGS Earthquake Hazards Program |
| 1939-05-02 | 7.2 | 92 km NNE of San Luis, Mexico | 10 km | USGS Earthquake Hazards Program |
| 1905-03-22 | 7.2 | 238 km WSW of Adak, Alaska | 35 km | USGS Earthquake Hazards Program |
| 1957-03-16 | 7.2 | 162 km WSW of Adak, Alaska | 25 km | USGS Earthquake Hazards Program |
| 1923-01-22 | 7.1 | The 1923 Humboldt County, California Earthquake | 15 km | USGS Earthquake Hazards Program |
| 1937-07-22 | 7.1 | Central Alaska | 10 km | USGS Earthquake Hazards Program |
| 1902-12-12 | 7.1 | Baja California, Mexico | - | USGS Earthquake Hazards Program |
| 1901-12-09 | 7.1 | Gulf of California | - | USGS Earthquake Hazards Program |
| 1948-05-14 | 7.1 | 90 km SE of King Cove, Alaska | 25 km | USGS Earthquake Hazards Program |
| 1999-10-16 | 7.1 | The 1999 Hector Mine, California Earthquake | 14 km | USGS Earthquake Hazards Program |
| 2016-01-24 | 7.1 | 47 km ESE of Pedro Bay, Alaska🌊 | 126 km | USGS Earthquake Hazards Program |
| 1994-09-01 | 7.1 | 121 km W of Ferndale, California | 10 km | USGS Earthquake Hazards Program |
| 2018-11-30 | 7.1 | 1 km SE of Point MacKenzie, Alaska🌊 | 47 km | USGS Earthquake Hazards Program |
| 1979-02-28 | 7.1 | 113 km SE of McCarthy, Alaska | 15 km | USGS Earthquake Hazards Program |
| 2019-07-06 | 7.1 | Ridgecrest Earthquake Sequence | 8 km | USGS Earthquake Hazards Program |
| 1947-10-16 | 7.1 | Central Alaska | 26 km | USGS Earthquake Hazards Program |
| 1910-09-09 | 7.0 | 101 km S of Adak, Alaska | 35 km | USGS Earthquake Hazards Program |
| 1929-07-05 | 7.0 | 114 km WSW of Adak, Alaska | 35 km | USGS Earthquake Hazards Program |
| 1918-05-23 | 7.0 | 41 km SSW of Heroica Guaymas, Mexico | 10 km | USGS Earthquake Hazards Program |
| 2024-12-05 | 7.0 | 2024 Offshore Cape Mendocino, California Earthquake🌊 | 10 km | USGS Earthquake Hazards Program |
| 1903-01-17 | 7.0 | 153 km SE of Adak, Alaska | - | USGS Earthquake Hazards Program |
| 1928-06-21 | 7.0 | 52 km NE of Chenega, Alaska | 15 km | USGS Earthquake Hazards Program |
| 1991-08-17 | 7.0 | 136 km WSW of Brookings, Oregon | 1 km | USGS Earthquake Hazards Program |
| 2012-04-12 | 7.0 | 69 km ENE of San Luis, Mexico | 13 km | USGS Earthquake Hazards Program |
| 1989-09-04 | 7.0 | 164 km SE of Chignik, Alaska | 11 km | USGS Earthquake Hazards Program |
| 2013-08-30 | 7.0 | 101 km SW of Atka, Alaska | 29 km | USGS Earthquake Hazards Program |
| 1971-05-02 | 7.0 | 69 km SW of Adak, Alaska | 25 km | USGS Earthquake Hazards Program |
| 1940-08-22 | 7.0 | 203 km SSE of Unalaska, Alaska | 15 km | USGS Earthquake Hazards Program |
| 1906-01-27 | 6.9 | 182 km SSE of Atka, Alaska | 15 km | USGS Earthquake Hazards Program |
| 1945-06-27 | 6.9 | 59 km SW of Bahía de Lobos, Mexico | 10 km | USGS Earthquake Hazards Program |
| 1935-01-23 | 6.9 | 77 km SSW of Nikolski, Alaska | 35 km | USGS Earthquake Hazards Program |
| 1926-10-13 | 6.9 | 100 km ESE of Adak, Alaska | 40 km | USGS Earthquake Hazards Program |
| 1943-11-03 | 6.9 | 27 km SE of Skwentna, Alaska | 15 km | USGS Earthquake Hazards Program |
| 1969-05-14 | 6.9 | 231 km WSW of Adak, Alaska | 26 km | USGS Earthquake Hazards Program |
| 2021-10-11 | 6.9 | 112 km E of Chignik, Alaska🌊 | 52 km | USGS Earthquake Hazards Program |
| 1938-11-17 | 6.9 | 105 km ESE of Perryville, Alaska | 35 km | USGS Earthquake Hazards Program |
| 1951-02-13 | 6.9 | 143 km ESE of Chignik, Alaska | 20 km | USGS Earthquake Hazards Program |
| 1927-11-04 | 6.9 | The 1927 Lompoc, California Earthquake | 10 km | USGS Earthquake Hazards Program |
| 1964-02-06 | 6.9 | 171 km SW of Akhiok, Alaska | 26 km | USGS Earthquake Hazards Program |
| 1993-05-15 | 6.9 | 151 km WSW of Adak, Alaska | 32 km | USGS Earthquake Hazards Program |
| 1985-12-23 | 6.9 | Northwest Territories, Canada | 6 km | USGS Earthquake Hazards Program |
| 2011-09-02 | 6.9 | 170 km E of Atka, Alaska | 32 km | USGS Earthquake Hazards Program |
| 1992-08-07 | 6.9 | 283 km SW of Yakutat, Alaska | 14 km | USGS Earthquake Hazards Program |
| 2001-01-10 | 6.9 | 47 km S of Old Harbor, Alaska | 36 km | USGS Earthquake Hazards Program |
| 2009-08-03 | 6.9 | 96 km WNW of Bahía de Kino, Mexico | 10 km | USGS Earthquake Hazards Program |
| 2015-07-27 | 6.9 | Fox Islands, Aleutian Islands, Alaska🌊 | 29 km | USGS Earthquake Hazards Program |
| 1954-12-16 | 6.9 | The 1954 Dixie Valley, Nevada Earthquake | 12 km | USGS Earthquake Hazards Program |
| 1966-08-07 | 6.9 | 275 km SE of Atka, Alaska | 11 km | USGS Earthquake Hazards Program |
| 1913-03-31 | 6.9 | 203 km WSW of Adak, Alaska | 35 km | USGS Earthquake Hazards Program |
| 1987-11-17 | 6.9 | Gulf of Alaska | 10 km | USGS Earthquake Hazards Program |
| 1983-10-28 | 6.9 | The 1983 Borah Peak Earthquake, Idaho | 10 km | USGS Earthquake Hazards Program |
| 1965-07-29 | 6.9 | 240 km SE of Atka, Alaska | 23 km | USGS Earthquake Hazards Program |
| 1911-09-17 | 6.9 | 216 km SSE of Adak, Alaska | 15 km | USGS Earthquake Hazards Program |
| 1933-04-27 | 6.8 | Southern Alaska | 15 km | USGS Earthquake Hazards Program |
| 1932-07-07 | 6.8 | 90 km SW of La Libertad, Mexico | 10 km | USGS Earthquake Hazards Program |
| 1957-02-21 | 6.8 | 167 km W of Nikolski, Alaska | 104 km | USGS Earthquake Hazards Program |