Affiliation:
1. Department of Earth Sciences, University of Western Ontario, London, ON N6A 5B7, Canada.
Abstract
Site amplification effects in southern Ontario are highly variable and strongly influence felt effects and damage potential. Site parameters such as shear-wave velocity in the top 30 metres of soil (VS30), traditionally used to estimate site amplification, are not well known in this region. Thus, regional maps of shaking potential and seismic hazard are often overgeneralized. In this study, a site amplification model based on peak frequency (fpeak) is compared to one based on VS30, as given by the 2015 National Building Code of Canada (NBCC). Earthquakes and scenario events are used to estimate ground motions and shaking intensities. It is shown that both models generally predict similar felt intensities but show significant differences in their predicted amplification of ground motions as a function of frequency. The results of this study support the use of fpeak as a site response variable for estimating amplification effects in southern Ontario.
Publisher
Canadian Science Publishing
Subject
General Environmental Science,Civil and Structural Engineering
Reference25 articles.
1. Assatourians, K., and Atkinson, G.M. 2008. Program: ICORRECT. Engineering Seismology Toolbox, Department of Earth Sciences, The University of Western Ontario, 40.
2. Attenuation and Source Characteristics of the 23 June 2010 M 5.0 Val-des-Bois, Quebec, Earthquake
3. Characteristics of the 17 May 2013 M 4.5 Ladysmith, Quebec, Earthquake
4. Estimation of Moment Magnitude and Stress Parameter from ShakeMap Ground‐Motion Parameters
5. Relationships between Felt Intensity and Instrumental Ground Motion in the Central United States and California
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