State

California

United States of America · North America

California is a state of the United States of America, in North America. It spans the North American and Pacific plates. Records include 9 volcanoes, 10 major earthquakes since 1900 and 45 tsunamis observed on its coasts.

Tectonic Plates

• North American Plate
• Pacific Plate

Volcanoes (9)

• Lassen Volcanic Center 1917
• Mono Lake Volcanic Field 1790
• Mono–Inyo Craters 1380
• Mammoth Mountain 1260
• Mount Shasta 1250
• Medicine Lake Volcano 1060
• Salton Buttes 210
• Ubehebe Craters 150 BCE
• Clear Lake Volcanic Field ?

Major Earthquakes Since 1900

• 2019Ridgecrest · M 7.1
• 19991999 Hector Mine Earthquake · M 7.2
• 19941994 Northridge Earthquake · M 6.757 deaths
• 19921992 Cape Mendocino Earthquakes · M 7.1
• 19921992 Landers Earthquake · M 7.63 deaths
• 19891989 Loma Prieta Earthquake · M 6.962 deaths
• 19711971 San Fernando Earthquake · M 6.565 deaths
• 19521952 Kern County Earthquake · M 7.712 deaths
• 19401940 El Centro Earthquake · M 7.29 deaths
• 19061906 San Francisco Earthquake · M 7.9700 deaths

Tsunamis Observed on Its Coasts

• 2022Tonga Islands, Tonga · 22.0 m6 deaths
• 2014Northern Chile, Chile · 4.6 m7 deaths
• 2013Santa Cruz Islands, Solomon Islands · 11.0 m10 deaths
• 2012British Columbia, Canada · 13.0 m1 deaths
• 2009Near North Coast, Indonesia · 0.4 m5 deaths
• 2007Solomon Islands · 12.1 m52 deaths
• 2007South Peru, Peru · 10.1 m596 deaths
• 2006South Kuril Islands, Russia · 21.9 m
• 2003Hokkaido Island, Japan · 4.4 m2 deaths
• 2001South Peru, Peru · 8.8 m103 deaths
• 1999Vanuatu Islands, Vanuatu · 6.6 m10 deaths
• 1996Irian Jaya, Indonesia · 7.7 m164 deaths

Famous Faults

• San Andreas Fault
• Hayward Fault

• Country Profile · United States of America

Sources: Natural Earth · Smithsonian GVP · NOAA NCEI · IBTrACS · GEM · Bird (2003), PB2002