Onur in 4 finds that In our municipality, the probability of an earthquake that will structurally damage our city occurring within the next 50 years in Vancouver is 12% and 9% higher in Victoria which is 21%.
CBC in 17 furthers that in BC and Canada, greater Vancouver is most susceptible to earthquake threats.
Now why is this? City of Vancouver explains that this is because The won de fewka Plate is moving toward and underneath the North American Plate along the Cascadia Subduction Zone. This zone produces massive earthquakes, called "megathrust earthquakes," which may register as large as magnitude 9.0 earthquakes.
Haas in 15 finds that a magnitude 9.0 earthquake can last for five minutes or longer, and the amount of energy released is about 1,000 times greater than that of a 7.0.
Recently in North America, Mexico was hit by powerful 7.0-magnitude earthquake, killing at least one. What this means is that a magnitude 9.0 earthquake can kill around or possibly even more than 1,000 people.
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