Geo - Living With Natural Hazards Flashcards
What factors effect risk of natural hazards?
Urbanisation - more people live closer together near the risk
Poverty - forces people to live in places at risk in order to earn money
Farming - volcanoes provide fertile land
Climate change - more energy in natural events makes them more extreme
What is a natural hazard?
A natural event which has a social impact on humans
Why live in an area at risk?
Better buildings make people feel safer
Some people may not be aware of the risks
Plate margins are often favourable areas of settlements eg. Costal areas
Fault lines bring water to the surface
Benefits of living in Iceland
Hot water from the constructive tectonic plates - 90% of Iceland is heated through this
Tourism - pretty waterfalls and volcanoes make money
Planning for a volcano
Maps have been produced showing areas at risk - some areas to be evacuated and some that cannot be built upon
Planning for a Earthquake
Maps have been produced showing areas at risk eg hospitals and transportation will need extra protection
Protection from volcanoes
Lol no
Protection from earthquakes
Reinforced walls Rolling weights Shutters Reinforced foundations Shock absorbers Build with large open areas for evacuation
How to predict volcanoes
If a volcano erupts every 20 years and it erupted 21 years ago, watch out
How to predict earthquakes
Not possible, just guess that if it’s been a while it might happen again soon
Monitoring volcanoes
Watch out for: Changes in shape Baby earthquakes Lava (duh) Gas rising to the surface
Monitoring earthquakes
Not possible
