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Ministry of Energy Mines and Responsible for Core Review

Information Circular 2013-03


Cascadia subduction zone earthquakes: a magnitude 9.0 earthquake scenario.


Cascadia Region Earthquake Workgroup (Crew)


On January 26, 1700 an estimated M9 earthquake unzipped the 700+ mile Cascadia Subduction Zone fault from northern California, USA to southern British Columbia, Canada, much like recent events in 2011 in Japan and 2010 in Chile. Produced by Cascadia Region Earthquake Workgroup (Crew), this report examines how the Pacific Northwest may fare after the next great ‘megathrust’ earthquake and tsunami. It summarizes not only why these earthquakes occur repeatedly, but also the likely consequences of the next Cascadia fault rupture. Future Cascadia earthquakes and tsunami will have lasting impacts to coastal communities and the potential to inflict tens of billions of dollars in physical damage, dramatically impacting the region’s economy..


View Information Circular 2013-03 (PDF, 3.6 MB)


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