Sine 1900 for the USA only 7.0+ there were 23 quakes. Most were along the West Coast. The surprising one for me was a 7.2 in Yellowstone in 1959!!!
7.8 Haida Gwaii, Canada 2012-10-28 03:04:08 UTC 14.0 km 7.0 Baja California, Mexico 2012-04-12 07:15:48 UTC 13.0 km
7.2 Baja California, Mexico 2010-04-04 22:40:43 UTC 4.0 km
7.2 off the coast of Northern California 2005-06-15 02:50:54 UTC 8.8 km
7.2 off the coast of Northern California 2005-06-15 02:50:53 UTC 25.5 km
7.1 Southern California 1999-10-16 09:46:44 UTC 0.0 km
7.1 offshore Northern California 1994-09-01 15:15:53 UTC 10.0 km
7.3 Southern California 1992-06-28 11:57:34 UTC 1.1 km
7.2 Northern California 1992-04-25 18:06:04 UTC 15.1 km
7.1 offshore Northern California 1991-08-17 22:17:14 UTC 13.5 km
7.2 Northern California 1989-10-18 00:04:15 UTC 18.5 km
7.2 offshore Northern California 1980-11-08 10:27:34 UTC 19.0 km
7.4 Haida Gwaii Region, Canada 1970-06-24 13:09:13 UTC 18.3 km
7.2 Yellowstone National Park, Wyoming 1959-08-18 06:37:20 UTC 10.0 km
7.1 Nevada 1954-12-16 11:07:17 UTC 10.0 km
7.2 Baja California, Mexico 1954-04-29 11:34:39 UTC 10.0 km
7.3 Central California 1952-07-21 11:52:16 UTC 10.0 km
7.5 Vancouver Island, Canada region 1946-06-23 17:13:24 UTC 15.0 km 7.0 Baja California, Mexico 1939-05-02 13:14:54 UTC 10.0 km
7.2 North Atlantic Ocean 1929-11-18 20:32:00 UTC 10.0 km
7.3 Haida Gwaii Region, Canada 1929-05-26 22:40:08 UTC 15.0 km
7.3 off the coast of Northern California 1922-01-31 13:17:31 UTC 15.0 km
7.7 San Pablo Bay, California 1906-04-18 13:12:27 UTC 10.0 km [
link to earthquake.usgs.gov]