What is the largest earthquake ever recorded in Canada?

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1. Guest23127609
   

   The largest earthquake recorded (during historic times) in Canada was a magnitude 8.1 event that struck just off the Haida Gwaii on Canada's west coast on August 22, 1949. This earthquake (larger than the 1906 San Francisco earthquake) ruptured a 500-km-long segment of the Queen Charlotte fault and was felt over almost all of British Columbia, and as far north as the Yukon Territory and as far south as Oregon State. Although not recorded by seismographs, the largest earthquake ever to strike Canada was undoubtedly the giant megathrust (subduction zone) earthquake of 1700 off the west Coast of Vancouver Island.

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