List of earthquakes in the United States

The following is a list of notable earthquakes and tsunamis which had their epicenter in areas that are now part of the United States with the latter affecting areas of the United States. Those in italics were not part of the United States when the event occurred.

List of earthquakes


Earthquake swarms which affected the United States:
 * 1962–71 Denver earthquake swarm
 * Enola earthquake swarm
 * 2008 Reno earthquakes
 * Guy-Greenbrier earthquake swarm
 * Oklahoma earthquake swarms (2009–present)

Earthquakes which affected the United States but whose epicenters were outside the United States borders:
 * 1925 Charlevoix–Kamouraska earthquake – magnitude 6.2 earthquake, no injuries or fatalities anywhere
 * 1979 Imperial Valley earthquake – magnitude 6.4 earthquake with an epicenter less than 1 km inside Mexico – significant damage and injuries on both sides of the border (60 in the US)
 * 2010 Baja California earthquake (Mexico near S California) – magnitude 7.2 earthquake, 4 fatalities and 100 injuries, none in the United States

Earthquakes which did not affect the United States directly, but caused tsunamis which did:
 * 1960 Valdivia earthquake and tsunami – magnitude 9.5 earthquake, between 2200 and 6000 fatalities, including 61 in Hilo, HI
 * 2006 Kuril Islands earthquake and tsunami – magnitude 8.3 earthquake, no injuries or fatalities anywhere
 * 2009 Samoa earthquake and tsunami – magnitude 8.0 earthquake with an epicenter 120 mi southwest of American Samoa generated tsunami waves up to 5 m, killing 34 people in American Samoa and causing extensive damage
 * 2010 Chile earthquake and tsunami – magnitude 8.8 earthquake, ~525 fatalities and unknown number of injuries, none in the United States
 * 2011 Tohoku earthquake and tsunami – magnitude 9.0 earthquake, 15,850–28,000 fatalities and 6,011 injured, one fatality and unknown number of injuries in the United States
 * 2012 Haida Gwaii earthquake – magnitude 7.8 earthquake with an epicenter on Moresby Island in British Columbia, the second largest Canadian earthquake ever recorded by a seismometer, over 100,000 people were evacuated to higher ground in the state of Hawai'i

List of strongest earthquakes by states and territories

 * Noted, magnitudes are reported on the Moment magnitude scale (Mw).