GEOL 106 Lecture Notes Feb 13.docx

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Queen's University
Geological Sciences and Geological Engineering
GEOL 106
David Alan Hanes

Feb 13 4/3/2013 11:20:00 AM Assessing Seismic Risk of an Area 3. Determine the geologic/geographic feature in the area -Map out locations of rock, sand soils, clay soils, etc. Different materials have different shaking characteristics -Map out zones of clay and sand that are prone to liquefaction -Map out locations of cliffs and hills These may be prone to landslides -Map out tsunami hazard zones Shore lines of oceans and lakes 4. Determine the potential human interactions with the hazard in the area -What is the population distribution in the area? Particular attention to proximity of people to high-risk zones -What is the nature of the human infrastructure?  Buildings, etc Risk Management Ph=Probability of hazard Sh=Severity of consequences of hazard 1. Understand the hazard in general 2. determine the risk from that hazard for the region of interest 3. Determine ways to reduce Ph and/or Sh 4. Do a cost-benefit analysis 5. Implement mitigation techniques if warranted (and to the extent that you choose) STEP 3 IN DETAIL Reduce Sh: 1. Apply land-use planning and zoning 2. Apply stringent building codes 3. Set up warning systems and emergency response plans 4. Try predicting quakes Reduce Ph: 1. Try “controlling
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