Scenario shakemaps for Montreal

作者：Ghofrani Hadi; Atkinson Gail M; Chouinard Luc; Rosset Philippe; Tiampo Kristy F

来源：Canadian Journal of Civil Engineering, 2015, 42(7): 463-476.

DOI：10.1139/cjce-2014-0496

• shakemap
• ground motion prediction equation
• site amplification

Montreal has significant seismic risk due to the combination of moderate seismicity, high population density, and vulnerable infrastructure. An important tool in damage and risk assessment is a scenario shakemap, which shows the expected ground shaking intensity distribution patterns. In this study, we use regional ground motion and site response evaluations to generate scenario shakemaps for Montreal. The impact of event location on expected ground motions and intensities was tested by considering the occurrence of a scenario (a given magnitude event) at various locations, where the scenarios are defined based on an analysis of the most likely future event locations. Variability in near surface geology plays an important role in earthquake ground shaking; we use microzonation information from Montreal to assess the expected site amplification effects. The results of this study may be used as input to seismic risk studies for Montreal.

• 出版日期2015-7