Applying the HAZUS-MH software tool to assess seismic risk in downtown Ottawa,Canada |
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| Authors: | S K Ploeger G M Atkinson C Samson |
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| Institution: | (1) Department of Geography, University of Ottawa, Ottawa, ON, K1N 6N5, Canada;(2) Department of Earth Sciences, University of Western Ontario, London, ON, N6A 5B7, Canada;(3) Department of Earth Sciences, Carleton University, Ottawa, ON, K1S 5B6, Canada |
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| Abstract: | The aim of this paper is to present earthquake loss estimations for a portion of downtown Ottawa, Canada, using the HAZUS-MH
(Hazards United States Multi-Hazard) software tool. The assessment is performed for a scenario earthquake of moment magnitude
6.5, at an epicentral distance of 15 km, occurring during business hours. A level 2 HAZUS-MH analysis was performed where
the building inventory, microzonation studies, and site-specific ground motion hazard maps (2% exceedence probability in 50 years)
were all improved based on local information. All collected data were assembled into a set of standard geodatabases that are
compatible with the HAZUS-MH software using a GIS-specific procedure. The results indicate that the greatest losses are expected
in unreinforced masonry buildings and commercial buildings. Sensitivity studies show that soil classes, the vulnerability
of schools, and the spatial scale of loss estimations are also important factors to take into account. |
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