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TitleA web application for rapid seismic risk assessment
AuthorAbo El Ezz, AORCID logo; Smirnoff, A; Nastev, MORCID logo; Nollet, M -J; McGrath, HORCID logo; Gibb, NORCID logo
SourceCanadian Society for Civil Engineering, Annual Conference, 2019: growing with youth, proceedings; 2019 p. GEN118.1-GEN118.4 Open Access logo Open Access
LinksOnline - En ligne
Alt SeriesNatural Resources Canada, Contribution Series 20190643
PublisherCanadian Society for Civil Engineering
MeetingCanadian Society for Civil Engineering Annual Conference 2019; Laval, QC; CA; June 12-15, 2019
Mediapaper; on-line; digital
File formatpdf
Subjectsgeophysics; Health and Safety; Science and Technology; earthquakes; earthquake risk; earthquake damage; earthquake magnitudes; seismic risk; economics; models; planning; software; attenuation; seismology; Methodology; Emergency preparedness; Public safety; Buildings; Decision making
Illustrationsscreen captures
ProgramPublic Safety Geoscience Quantitative risk assessment
Released2019 06 01
AbstractNumerous computer models have been developed for seismic loss analyses at urban and regional scales. They seem, however, ill-suited to custom application to the specific Canadian hazard and exposure settings and, more importantly, inadequate for utilization by the broader non-expert public safety community. Therefore, communication of the potential seismic risk results to local stakeholders, such that they can properly understand their exposure and vulnerability, represents an outstanding challenge. The objective of the present study is to describe the methodological background and ongoing development activities of the Rapid Risk Evaluator (ER2), a relatively rapid and user-friendly risk assessment application, developed to overcome the current communication barriers between risk experts and decision makers. Developing ER2 included: pre-computing site-specific databases containing ground motion scenarios, prediction of potential attenuation with distance and local site amplification, a standardized inventories of buildings' structural properties and occupancy categories, and assessment of the seismic vulnerability using hazard-compatible vulnerability functions. These functions correlate directly the intensity of the seismic shaking to the probability of damage and direct economic and social losses. This approach allows for conducting risk scenarios in large urban centers within minutes. The above approach was programmed into an easy to run web-application. Equipped with graphic user interface, ER2 allows non-expert users to run otherwise complex seismic risk scenarios through a simple intuitive selection process. An example of ER2 applied to a hypothetical earthquake event in Quebec City is included to illustrate the simplicity of the user interface and capabilities of the application.

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