Download or read book The Earthquake Threat in Southwestern British Columbia written by John Joseph Clague and published by . This book was released on 2001 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nine moderate to large (magnitude 6-7) earthquakes have occurred in southwestern British Columbia and northwestern Washington in the last 130 years. Vancouver is at great risk from earthquakes because important infrastructure, including energy and transportation lifelines, probably would be damaged or destroyed by landslides and liquefaction-induced ground failure. The primary objective of this report is to evaluate the earthquake threat to the populated south-coastal region of British Columbia based on historic seismicity and geologic evidence. A secondary objective is to show how geologic information contributes to a better understanding of earthquake hazards and risk in the region.

Download or read book The Earthquake Threat in Southwestern British Columbia electronic Resource written by J. J. (John Joseph) Clague and published by Vancouver: Geological Survey of Canada. This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Paleoseismology and Seismic Hazards Southwestern British Columbia written by Geological Survey of Canada and published by . This book was released on 1996 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: The historical and geological record indicate that the earthquake hazard in south-western British Columbia is relatively high. This bulletin presents results of a major paleoseismological investigation consisting of several related interdisciplinary studies that extend the seismic record of the region into prehistory. Three introductory sections contain background material on the region's geologic and tectonic setting, earthquake sources, historical seismicity, and research methods used. This is followed by four sections summarizing paleoseismological research on the following indicators of possible past earthquakes: sea level changes, tsunamis and their deposits, liquefaction of ground, and landslides. The final sections are concerned with seismic hazards (ground motion, ground rupture, subsidence and flooding, tsunamis and seiches, liquefaction, landslides) and analysis of risk and recurrence of earthquakes.

Download or read book Crustal Structure and Earthquake Hazards of the Subduction Zone in Southwestern British Columbia and Western Washington written by Michael A. Fisher and published by Geological Survey (USGS). This book was released on 2005 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Exploring Perceptions of Disaster Risk and Earthquake Hazard on Southern Vancouver Island British Columbia Canada written by Brittany Jennifer Schina and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Southern Vancouver Island, situated on Canada's West Coast, is exposed to many natural and human-made threats due to its physical geography and demography. Perceptions of these disaster risks and of seismic hazard, in particular, were surveyed through locally-administered questionnaires conducted with 105 members of the general public and 13 emergency managers living and working on southern Vancouver Island, specifically in the Cowichan Valley Regional District (CVRD) and the Capital Regional District (CRD). Perhaps the greatest risk to the region, and that, which is perceived by both the general public and practitioners as the greatest risk, is low frequency, high consequence earthquake events. The region is exposed to earthquakes from many sources, but has not experienced a damaging quake in several decades, begging questions as to whether residents consider earthquake a prominent threat and whether they have an accurate appreciation for the earthquake hazard (likelihood) in the region. While researchers have scientifically quantified the earthquake hazard in the region for over 50 years, only in the past 10 years has this hazard information been presented in a format that is comprehensible by the general public. In order for individuals and communities to make informed decisions, this information must ultimately reach the public and be interpretable and actionable. This research describes and analyzes disaster risk and seismic hazard perception on Southern Vancouver Island, and identifies whether there are gaps in communication between the scientists who create the knowledge, the emergency managers who disseminate the information, and the general public who ultimately needs to act on the information to increase their resilience. Results reveal that earthquakes are perceived as the highest disaster risk among both the general public and emergency managers on southern Vancouver Island, and that a large majority of participants know that their community is at risk from an earthquake. In addition, while emergency managers consider mostly natural threats to be significant risks, the general public more commonly identify human-made intentional threats as significant risks. The study also found that gender and location influence how individuals prefer to receive hazard information. In addition, household income and time spent living on Vancouver Island are key variables for how likely members of the general public are to be prepared. Findings suggest that while both emergency managers and the general public overestimate the earthquake hazard on southern Vancouver Island, on average emergency managers perceive the earthquake hazard to be greater than the general public does. Interestingly, general public respondents in the CVRD perceive seismic hazard to be higher than respondents in the CRD, while the calculated hazard is actually higher in the CRD. In addition, emergency managers underestimate residents' perceptions of earthquake hazard. In other words, they feel that the public underestimates the hazard when actually both emergency managers and the general public overestimate it. These misperceptions have implications for future seismic hazard and disaster risk communication. Prior to this study, disaster risk perception has not been explored in detail in this region, and while limitations to this research are outlined, the study provides a useful descriptive analysis and baseline information for emergency managers and academic researchers to build upon. The findings of this research have specific relevance for emergency managers to inform their public education and outreach efforts around preparation, response and resilience to disasters on southern Vancouver Island.

Download or read book Issues in Urban Earthquake Risk written by B.E. Tucker and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: Urban seismic risk is growing worldwide and is, increasingly, a problem of developing countries. In 1950, one in four of the people living in the world's fifty largest cities was earthquake-threatened, while in the year 2000, about one in two will be. Further, ofthose people living in earthquake-threatened cities in 1950, about two in three were located in developing countries, while in the year 2000, about nine in ten will be. Unless urban seismic safety is improved, particularly in developing countries, future earthquakes will have ever more disastrous social and economic consequences. In July 1992, an international meeting was organized with the purpose of examining one means ofimproving worldwide urban safety. Entitled "Uses ofEarthquake Damage Scenarios for Cities of the 21st Century," this meeting was held in conjunction with the Tenth World Conference ofEarthquake Engineering, in Madrid, Spain. An earthquake damage scenario (EDS) is adescription of the consequences to an urban area of a large, but expectable earthquake on the critical facilities of that area. In Californian and Japanese cities, EDSes have been used for several decades, mainly for the needs of emergency response officials. The Madrid meeting examined uses of this technique for other purposes and in other, less developed countries. As a result of this meeting, it appeared that EDSes bad significant potential to improve urban seismic safety worldwide.

Download or read book Crustal Structure and Earthquake Hazards of the Subduction Zone in Southwestern British Columbia and Western Washington written by and published by . This book was released on 2005 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Earthquakes in Southwestern British Columbia written by and published by . This book was released on 2011 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Southwestern British Columbia is one of the most seismically active regions in Canada. Approximately 400 earthquakes occur each year in the region extending from the north end of Vancouver Island to Seattle, Washington U.S. seen on the map below. About a dozen of these earthquakes are felt by people, but many of the larger earthquakes occur offshore. Earthquakes capable of causing structural damage happen every decade or so"--Page [1].

Download or read book Crustal Structure and Earthquake Hazards of the Subduction Zone in Southwestern British Columbia and Western Washington written by Michael A. Fisher and published by . This book was released on 2005 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Earthquake Threat to BC s School Children written by Tracy Monk and published by . This book was released on 2003 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Risks to West Coast Vancouver Island Fisheries from a Mega earthquake at the Cascadia Subduction Zone written by Deirdre E. Dobson and published by . This book was released on 2004 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Earthquakes in South Western British Columbia written by Canada. Earth Sciences Sector and published by . This book was released on 2009 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geology and Geological Hazards of the Vancouver Region Southwestern British Columbia written by J. W. H. Monger and published by . This book was released on 1994 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Earthquake hazards of the Pacific Northwest coastal and marine regions written by Michael A. Fisher and published by . This book was released on 2005 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Damaging Earthquakes and Their Implications for the Transfusion Medicine Function of the Health Care System on Vancouver Island British Columbia written by Bruce Owen Sanderson and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Greater Victoria, a conurbation of about 335,000 people located in southwestern British Columbia, Canada, is subject to significant seismic hazards. The major regional seismic factor is the offshore Juan de Fuca tectonic plate, subducting beneath North America along the 1,100 km-long Cascadia Subduction Zone (CSZ), a megathrust fault. This environment generates three types of potentially damaging earthquakes?shallow, subduction, and deep. This research examines how the Transfusion Medicine (TM) component within transfusing facilities in Greater Victoria and the balance of Vancouver Island might function following these types of earthquakes. A shallow earthquake of magnitude (M)7 or greater that occurs near enough could heavily damage critical infrastructure in Greater Victoria. Decisions regarding the alternatives of (a) rapidly relocating a facility for storing and/or processing blood products within or near Greater Victoria or (b) transporting people injured in an earthquake to transfusing hospitals in or beyond Greater Victoria, or (c) both (a) and (b), may need to be made within the first few hours following a locally destructive earthquake. A subduction event (M8 to 9.2) in the CSZ could reduce or halt production of blood products in nearby Vancouver, diminish the supply of stored blood in southwestern coastal British Columbia, and sharply increase demand for blood products. Post-subduction-event conditions would likely result in a temporary shortage of blood products in at least two regional health authorities, and would test the response of a few key related functions within smaller, more remote health care facilities. A subduction event also would impact ground transportation routes, airports, and wharves, making the transportation of blood products to and around Vancouver Island more difficult. The researcher interviewed several professionals whose work supports the blood contingency emergency response by the Canadian Blood Services, the Vancouver Island Health Authority (VIHA), and the British Columbia Ministry of Health, to obtain information that could help maintain the TM function in post-quake circumstances. To prepare informants to answer questions regarding the health care implications of these earthquakes, the researcher generated--per earthquake type--order of magnitude estimates of the numbers of hospitalizations that would likely result in Greater Victoria or/and Vancouver Island. The study examines the inventorying and transportation of blood products, some communication, decision-making, and blood product distribution considerations--plus the hazard mitigation and vulnerability reduction aspects--that could be included in an earthquake-specific blood contingency plan for VIHA transfusing facilities. It also considers how VIHA could sustain the function of the TM Laboratory role within transfusing hospitals during post-earthquake circumstances in which some of their facilities for storing, monitoring, analyzing, or transfusing blood products are inoperable ... .

Download or read book A Disaster Risk Management Approach to Seismic Risk on Vancouver Island British Columbia written by Mark R. Seemann and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Communities on Vancouver Island, British Columbia face significant exposure to damaging earthquakes. This seismic risk arises not only from the Island's proximity to crustal, sub-crustal and subduction earthquake sources in the Cascadia Subduction Zone and from their associated aftershock sequences, but also from environmental (natural and human-made) and social vulnerabilities in Vancouver Island communities and their current capacities to respond and recover from a large seismic event. Seeking to 1) assist community officials and the general public to better understand the scope of the earthquake risk on Vancouver Island; 2) raise awareness of the gaps in Vancouver Island's risk assessment; 3) encourage and facilitate comprehensive seismic risk discussions at all levels of governance; and 4) offer quantitative data on which to base sound funding and policy decisions, this dissertation offers three new studies, presented in paper format, toward the comprehensive management of seismic risk on Vancouver Island. The first paper, reviews the components of risk and, building on international risk management standards and best practices, develops a new, comprehensive Disaster Risk Management (DRM) Framework for practitioners. This DRM Framework is then used to review existing knowledge of Vancouver Island's seismic risk. A number of information gaps are identified, and two in particular, mainshock and aftershock hazard assessment, are targeted for further analysis.

Download or read book Program for Earthquake Hazards Assessment in the Pacific Northwest written by DIANE Publishing Company and published by DIANE Publishing. This book was released on with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: