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TitleRevised deaggregation of seismic hazard for selected Canadian cities
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AuthorHalchuk, S; Adams, J; Anglin, F
SourceProceedings of the 9th Canadian Conference on Earthquake Engineering; 2007 p. 420-432, https://doi.org/10.4095/223221
Year2007
Alt SeriesEarth Sciences Sector, Contribution Series 20060524
Alt SeriesEarth Sciences Sector, General Information Product 46
PublisherCanadian Association for Earthquake Engineering
Meeting9th Canadian Conference on Earthquake Engineering; Ottawa, ON; CA; June 26-29, 2007
Documentbook
Lang.English
MediaCD-ROM; on-line; digital
File formatpdf (Adobe® Reader®)
ProvinceBritish Columbia; Alberta; Saskatchewan; Manitoba; Ontario; Quebec; New Brunswick; Nova Scotia; Prince Edward Island; Newfoundland and Labrador; Northwest Territories; Yukon; Nunavut
NTS1; 2; 3; 10; 11; 12; 13; 14; 15; 16; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 52; 53; 54; 55; 56; 57; 58; 59; 62; 63; 64; 65; 66; 67; 68; 69; 72; 73; 74; 75; 76; 77; 78; 79; 82; 83; 84; 85; 86; 87; 88; 89; 92; 93; 94; 95; 96; 97; 98; 99; 102; 103; 104; 105; 106; 107; 114O; 114P; 115; 116; 117; 120; 340; 560
Lat/Long WENS-141.0000 -50.0000 90.0000 41.7500
Subjectsgeophysics; seismic interpretations; seismic risk; seismicity; strong motion seismology; seismology; earthquake studies; earthquake risk; earthquakes; health hazards
Illustrationshistograms; tables; plots
ProgramCanadian Hazard Information Service
AbstractThe Geological Survey of Canada's new seismic hazard model for Canada forms the basis for the seismic design provisions of the 2005 National Building Code of Canada (NBCC). We deaggregate the seismic hazard results for selected cities to help understand the relative contributions of the earthquake sources in terms of distance and magnitude. Deaggregation for a range of probabilities and spectral accelerations (Sa) from 0.2 to 2.0 seconds is performed to examine in detail the hazard for two of Canada's largest urban centres at high risk, Vancouver in the west and Montreal in the east. Additional plots and a summary table of deaggregated seismic hazard are provided for other selected Canadian cities, for Sa(0.2), Sa(1.0) and peak ground acceleration (PGA) at a probability of exceedence of 2%/50 years. In most cases, as the probability decreases, the hazard sources closer to the site dominate. Larger, more distant earthquakes contribute more significantly to hazard for longer periods than shorter periods. Deaggregation plots can provide useful information on the distance and magnitude of predominant sources, which can be used to generate scenario earthquakes and select corresponding time histories for
seismic design.
GEOSCAN ID223221