Authors / CoAuthors
Halchuk, S. | Adams, J. | Kolaj, M. | Allen, T.
Abstract
The Geological Survey of Canada's 5th Generation seismic hazard model for Canada forms the basis for the seismic design provisions of the 2015 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 10.0 seconds is performed to examine in detail the hazard for two of Canada's largest urban centres at highest risk, Vancouver in the west and Montréal in the east. A summary table of deaggregated seismic hazard is provided for other selected Canadian cities, for Sa(0.2), Sa(2.0) 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. The deaggregations allow better-informed choices of scenario events and for the selection of representative time histories for engineering design.
Product Type
document
eCat Id
127136
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Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
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Keywords
- theme.ANZRC Fields of Research.rdf
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- EARTH SCIENCES
- ( Place )
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- Montréal
- ( Place )
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- Vancouver
- ( Process )
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- deaggregation
- ( Theme )
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- hazard
- ( Theme )
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- national building code
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- Published_External
Publication Date
2020-08-13T01:54:14
Creation Date
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Classification - unclassified
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Status
final
Purpose
12th Canadian Conference on Earthquake Engineering
Maintenance Information
asNeeded
Topic Category
geoscientificInformation
Series Information
Lineage
Collaboration with Canadian colleagues as part of the development of an updated Seismic Hazard Model for consideration by the Building Code of Canada D2019-21999
Parent Information
Extents
[-44.00, -9.00, 112.00, 154.00]
Reference System
Spatial Resolution
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Associations
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