EESB18H3 Lecture Notes - Natural Hazard, Risk Assessment, Plate Tectonics
6 Feb 2014
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Document Summary
More then 1m people have died worldwide from env hazards since 1947. Population density and quality of infrastructure are key determinants in numbers of death. Seismic stations around the world recorded the effects of the earthquake of december 26, 2004. This earthquake released as much energy as every earthquake on earth between 1976 and. The earthquake triggered a series of waves, called tsunami, which killed over 250,000 people. Economic losses due to natural disasters have grown exponentially since the 1950"s. The most expensive disasters occur in the us. Earthquakes, volcanoes, landslides, floods, tornados, hurricanes, erosion, bolide impact. Risk assessment: we will learn how to tell whether we are about to but or rent a house. If we can predict something, it is because we understand the situation there. Risk: probability of event occurring multiplied by impact on people and property. Disasters: effect of hazard on society (property damage, injury, loss of life)
