ERTH 2415 Chapter Notes - Chapter 5: Haida Gwaii, Eastern Canada, 1700 Cascadia Earthquake
14 Mar 2012
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Document Summary
Estimating the seismic hazard in canada is hard to do, because records do not go back in time very far. As a result, earthquake research aims to determine where and how strong an earthquake will be, instead of when an earthquake will be. There are roughly three broad seismic regions in canada. 2) a western region consisting of the richardson mountains (in yukon and nwt) and more importantly the queen charlotte transform fault and the cascadia subduction zone. 3) an eastern region having most arctic islands, the. St. lawrence river valley, and the grand banks. Vulnerability to seismic events is an important consideration. Hazard and vulnerability work as products to determine overall risk. Vancouver happens to have the highest level of seismic risk. The canadian national seismograph network (cnsn) monitors earthquakes in canada. It consists of more than 100 seismographs, and 60 accelerographs. Seismic events above a certain threshold automatically trigger two things: the automated natural.
