ISP 203B Exam one - ISP 203B Exam one: -Costs of disasters...

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ISP 203B Exam one: -Costs of disasters are rising and population and infrastructure play a huge role. Events+humans=hazard -All geographic and atmospheric processes are naturally occurring events that would eventually occur independent of humans. However, occurrence of humans and infrastructure transforms a natural event into a potential hazard. When a natural occurring geologic or atmospheric event is responsible for: 1) A large number of human injuries or loss of life and/or 2) Property damage The natural event is referred to as: Disaster-catastrophe- hazard What determines how disastrous a natural hazard is? -Population -Infrastructure -Location and size of event Why do people live, work, and build in geologically hazardous regions? -Nice real estate -Fertile soil -Inexpensive property -Transportation corridors What steps need to be taken to reduce damage of hazards? -recognize to risk and avoid living in that region. Who is to blame for the damage and loss of life in natural hazards? -Local government -federal government -individuals -scientific community
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-Real estate and insurance companies Hazard prediction is simple a projection based on past occurrences. In the case of a hazard, this is referred to as a reoccurrence interval. As a result: exact predictions of natural hazards at this point in our scientific understanding are essentially impossible. Hazard prediction is easier this is because of the variables. As a rule the reoccurrence interval of smaller geographic and atmospheric events are easier to predict than larger scale events. The processes are the same scientifically and are independent of scale. Increase in scale increased in variables increase in randomness of larger events Fractal- similar pattern but different sizes Magnitude is inversely proportional to in frequency (M= 1/F) Hazard- exists where a natural event is likely to harm people or property Risk- The hazard consideration in the context of its reoccurrence interval and expected cost insurance and
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ISP 203B Exam one - ISP 203B Exam one: -Costs of disasters...

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