Natural Hazards

Earthquake Hazard in Canada

Western Canada and the St. Lawrence region carry the highest seismic hazard. NRCan publishes peak ground acceleration values used in the National Building Code of Canada.

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30
Elevated seismic cities
Above low hazard level
0.33999999999999997g
Max PGA in sample
Peak ground acceleration
West + St. Lawrence
Primary zones
Cascadia subduction, intraplate
169
Communities tracked
Canadian hazards atlas

Seismic hazard in Canada

Most Canadians live in low seismic zones, but Vancouver, Victoria, Montreal, and Quebec City sit on active crustal faults or near subduction zones. Peak ground acceleration (PGA) quantifies expected shaking intensity for building code design — higher values require stronger structural detailing.

Standard home insurance in Canada does not cover earthquake damage. Separate earthquake endorsements or catastrophic pools (e.g., BC's Earthquake Commission for residential structure coverage) apply in high-hazard regions. Retrofit programs exist in BC and Quebec for unreinforced masonry and soft-story buildings.

Reference sources

Highest seismic hazard cities

Ranked by peak ground acceleration