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26 Cards in this Set
- Front
- Back
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the potential threat to humans and the things they value
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hazard
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the realization of a hazard with widespread losses; think big/a large effect
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disaster
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the probability of an event occurring or the likelihood of a hazard happening
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risk
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_____ is how often something occurs
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frequency
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_____ is how big something/how serious an event is
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magnitude
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there is an _____ between frequency and magnitude
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inverse correlation; basically, more frequent occurrences are low in magnitude whereas rare occurrences are of a higher magnitude
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the potential for loss
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vulernability
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What are the three kinds of vulnerability?
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individual (homes, office, other units); social (socioeconomic or the average income of an area); biophysical (mapping exposure to hazards)
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refers to the idea of making plans and taking action to reduce the vulnerability of an area
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mitigation
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in the study of hazards, _____ matters
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place (some areas are more susceptible than others)
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True or false? Hazards are limited to natural causes.
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false (think about blackouts, Chernobyl, etc.)
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extreme events of natural phenomenon acting at the high end of the energy scale for a short time in a restricted area
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natural disaster
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What type of natural disaster is responsible for the most deaths?
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hurricanes
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Most mega-killer disasters occur in what part of the world?
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the densely populated belt through Asia along the Indian Ocean
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The number of fatalities in a natural disaster is directly proportional to _____
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the density of population
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An increase in the economic losses due to natural disasters over time is a result of what?
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an increase in human population and urbanization
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The most expensive natural disasters have been caused by storms occurring where?
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(1.) the United States, (2.) Europe, and (3.) Japan -- the place where most of the money is
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There was a flat population curve until _____ years ago
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8,000
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By 2,000 years ago, there were _____ million people on Earth
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200
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What is responsible for the increase in population?
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Better shelter, food and water supplies, advances in agriculture, etc. all contributed to a faster population growth rate.
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By 1750, the population of Earth was over _____ million people
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800
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The projected population of Earth by 2012 is _____ billion
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7
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Ultimately, why do hazards seem like a big deal today?
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Because there are more people with more expensive stuff living in more hazardous places
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The number of people that the Earth can support
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carrying capacity
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_____ states that the Earth's outermost layer is fragmented into a dozen or more large and small plates that are moving relative to one another as they ride atop hotter, more mobile material
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the theory of plate tectonics
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State the theory of plate tectonics.
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the Earth's outermost layer is fragmented into a dozen or more large and small plates that are moving relative to one another as they ride atop hotter, more mobile material
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