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The Challenge of Natural Hazards, Magnitude (size) - Coggle Diagram
The Challenge of Natural Hazards
Natural Hazards
something natural that can endanger people or buildings
a natural disaster = when a natural hazard does happen in real life
Types of Natural hazard
Geological
caused by the Earth and its tectonic plate movements
Earthquakes, volcanoes, landslides and avalanches
Meteorological
involving weather, atmosphere or climate
heatwaves, bushfires, hurricanes/typhoons and extreme weather caused by climate change
some place more likely to be hit by natural hazards e.g. Philippines
they are out of human control
to be classed as a hazard it must threaten or affect human life
Factors affecting how bad a natural hazard is
Predictability
Factors affecting Hazard risk
Living in certain areas = people who live on marginal land (little or no agricultural or industrial value) are more at risk
High population density = number of people living per unit of area high = likely more people will be affected by a natural hazard
hazard risk = likelihood of an event caused by a natural hazard happening
Frequency
Magnitude (size)
Consequences of natural hazards
Different populations of people do different activities and have different abilities to deal with natural hazards.
Preparation
HIC usually have Governments that can build flood defences and evacuate the population
Income
Poor populations/nations often have a lower quality of housing than rich nations e.g. Hurricanes usually affect Haiti worse than the US due to housing and ability to coep