| Title | 5th generation (2015) seismic hazard model for southwest British Columbia |
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| Author | Rogers, G; Halchuk, S; Adams, J ; Allen, T |
| Source | 11th Canadian Conference on Earthquake Engineering: facing seismic risk, conference proceedings; 94198, 2015 p. 1-10  Open Access |
| Links | Online - En ligne (PDF, 1.98 MB)
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| Year | 2015 |
| Alt Series | Earth Sciences Sector, Contribution Series 20150121 |
| Publisher | Canadian Association of Earthquake Engineering |
| Meeting | 11th Canadian Conference on Earthquake Engineering; Victoria, BC; CA; July 21-24, 2015 |
| Document | Web site |
| Lang. | English |
| Media | on-line; digital |
| File format | pdf (Adobe® Reader®) |
| Program | Public Safety Geoscience Western Canada Geohazards Project |
| Released | 2015 07 01 |
| Abstract | About 3.5 million people live in southwest British Columbia which includes the metropolitan areas of greater Vancouver and greater Victoria and significant infrastructure of national importance. The
region is subjected to three sources of earthquake shaking: earthquakes that are in crust of the North American plate, deeper earthquakes beneath the Strait of Georgia that are within the subducted plate and giant megathrust earthquakes off the west
coast of Vancouver Island. Depending on which part of the earthquake spectrum is of interest, one of these sources has the largest contribution to the seismic hazard at a particular site. Compared to NBCC2010 short period hazard has gone up slightly
in Victoria and down slightly in Vancouver, while long period hazard has gone up in both locations. Deaggregation of the hazard shows that the deeper earthquakes within the subducted plate make the largest contribution to the short period hazard for
much of the region and the contribution from the offshore subduction earthquakes dominates the longer period hazard throughout southwest BC. |
| Summary | (Plain Language Summary, not published)
About 3.5 million people live in southwest British Columbia which includes the metropolitan areas of greater Vancouver and greater Victoria and
significant infrastructure of national importance. The region is subjected to three sources of earthquake shaking: earthquakes that are in crust of the North American plate, deeper earthquakes beneath the Strait of Georgia that are within the
subducted plate and giant megathrust earthquakes off the west coast of Vancouver Island. Depending on which size of building is of concern, one of these sources has the largest contribution to the seismic hazard at a particular site. The deeper
earthquakes within the subducted plate make the largest contribution of hazard for small buildings for much of the region and the contribution from the offshore subduction earthquakes dominates the hazard throughout southwest BC for high rise
buildings. |
| GEOSCAN ID | 296708 |
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