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Global issues- earth hazards




Hazard management

Techniques to manage hazards

Prevention- sea walls, levees
Modification- earthquake proof buildings
Mitigation- reducing effects such as with floodplain zoning
Preparedness- make people aware of hazards such as with tsunami warnings
Respond/recover- deal with effects such as emergency services,
rebuilding/repairing
Economic offset measures- dealing…

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Global issues- earth hazards




Volcano management

Prevent- magmatic degassing- drilling a hole into a magma chamber allowing
gas to escape slowly reducing the pressure and preventing an eruption.
Divert lava flow by building dams or explosions to create a place for the
lava to go.
Prepare- warning systems. Evacuation.
Predict-…

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