Impacts on people from hazards

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Fertile soils from volcanic eruptions; nutrients come from within volcanoes; so if need fertile soils
can be popular
In 200; 500 million people were at risk from volcanic hazards.
In the past 500 years 200,000 people have dies due to volcanic eruptions
Recently this figure runs at 1000 per year.
WHY DO PEOPLE LIVE IN TECTONICALLY ACTIVE AREAS?
Lack of education/finance: links to unaware of the risk
Tourism- Hawaii
Cheap land
Fertile Soils- ash
Economic gain
Forced migration
Geothermal energy
Job opportunities- California
Unaware of risk
Hot springs
Not very active
Close to tradition/family
Minerals and natural resources
Climate
Specific hazard impacts:

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HUMAN COSTS
Primary casualties: people killed or injured by an earthquake or volcanic eruption. This might be through
buildings collapsing through being trapped in fast-moving lava, by poisonous gas or by fire. Casualties
tend to be much higher in LEDCs because of poor construction methods limited preparedness and less
effective warning systems and search and rescue systems
Secondary casualties: people who survive the initial incident but are either injured or die because of
insufficient resources and lack of emergency medical care.…read more

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GRAPH INTERPREATION 3:
Fig 9.21 shows the decadal earthquake fatalities as % of global population. The trend has dropped and is
expected to drop. This is probably because of an improvement in technology and medical treatment.…read more

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