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Characterizing Seismic Risk Across Canada

Description: 

The Geological Survey of Canada has recently published a national seismic risk model, quantifying seismic risk at the neighbourhood level across Canada. This article presents summary results of this model, including loss exceedance curves at the national and provincial levels, neighborhood level risk indicators, and expected 500-year economic losses. We find that national 500-year economic losses have the potential to exceed capacities of the insurance sector to absorb expected financial consequences. We also present results of the Seismic Risk Index, a compound measure of seismic risk which factors in both physical and social dimensions of vulnerability. The Seismic Risk Index identifies communities most at risk from earthquakes in Canada, many of which are small communities in Western Canada, and large municipalities in British Columbia, Ontario and Quebec. We will also share our newly launched custom web application, RiskProfiler, designed to allow stakeholders to visualize and explore these results in a user-friendly way. This work is relevant not only to those in Canada, but also other researchers engaged in creating or maintaining seismic risk models at a national or regional level.

Session: Advances in Probabilistic Seismic Hazard Analysis and Applications

Type: Oral

Date: 4/19/2023

Presentation Time: 02:30 PM (local time)

Presenting Author: Tiegan E. Hobbs

Student Presenter: No

Invited Presentation: 

Authors