tectonics

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when did alfred wegener develop his theory of continental drift?
1912
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how many deaths does there have to be to credit something a disaster?
500
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what has to happen for a hazard to develop into a mega disaster?
over 2000 deaths, over 200,000 people made homeless, GDP of the country decreased by atleast 5%, dependence on international aid for a year or more.
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how does the pressure and release model calculate risk?
risk= hazard X vulnerability. it is the combination of both the physical factors and the human factors to give a higher risk.
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what does the pressure and release model suggest what should be tackled to reduce risk?
root causes, dynamic pressures and unsafe living conditions.
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what are some of the root causes?
weak governance, limited access to power. dysfunctional cultural political and economic systems.
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what hazards have the most fatalities?
the slow onset ones such as drought and famine
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what is a hazard?
a natural tectonic event that disrupts normal daily life.
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how many deaths does there have to be to credit something a disaster?

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500

Card 3

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what has to happen for a hazard to develop into a mega disaster?

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Card 4

Front

how does the pressure and release model calculate risk?

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Card 5

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what does the pressure and release model suggest what should be tackled to reduce risk?

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