WORLD AT RISK What you should achieve this lesson Know how to use the disaster risk equation Understand how vulnerability of people is a result of a number of factors Identify recent trends in natural hazard data ID: 433702
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Slide1
Disaster risk equation
WORLD AT RISKSlide2
What you should achieve this lesson
Know how to use the disaster risk equationUnderstand how vulnerability of people is a result of a number of factors
Identify recent trends in natural hazard dataSlide3
recap
With a partner test each other on what the following terms mean:Natural Hazard
DisasterRisk Vulnerability
Hydro- meteorological hazardGeophysical HazardChronic HazardSlide4
Natural event or natural hazard
1- A cyclone affecting Hong Kong2- A hurricane passing over a remote unpopulated island
3- A flood in a rural area which floods the roads, but does not affect any houses
4- A volcano erupting on a remote unpopulated island5- An avalanche in a ski resort6- An avalanche high on mountainous slopes remote from any settlementSlide5
Which would you pick?
What type of hazard would you prefer to face and why?Slide6
Disaster risk equation
Risk is the exposure of people to a hazardous event which may present a potential threat to people or their possessions, including buildings and structures
.What factors can influence the level of risk?Slide7
Disaster risk equation
RISK = HAZARD x VULNERABILITY
CAPACITYThe risk of disaster grows as global hazards and people’s vulnerability increases, while their capacity to cope decreases
MEDCs LEDCsIncreasing vulnerability in some respectsSlide8
vulnerability
Not all of the planet’s population is at the same risk, but millions of people are considered to be vulnerableVulnerability
is NOT the same as povertyE.g. an earthquakeThe middle class may be more affected by a earthquake as their property could cause more damage when
it collapses than a property within a shanty townSlide9
vulnerability
Either bullet point or produce spider diagrams to explain how the following factors can effect vulnerabilityWealth of people
Technical ability of a countryEducationAge
RuralUrbanSlide10
Why live in a hazardous area?Slide11
Is the world more hazardous?Slide12
Is the world more hazardous?
It’s clear that the frequency of natural disaster has increased but what factors could influence this?
Technology
International monitoring agencies e.g. CRED or SCSNhttp://www.scsn.org/commentary/?cat=2MediaSlide13
Is the world more hazardous?Slide14
Is the world more hazardous?Slide15
Is the world more hazardous?
Is this what you expected?Slide16
Is the world more hazardous?
There is a decreasing number of deaths due to hazards – why?Better understanding of natural disasters
Better preparednessBetter technology
This is not the case everywhereSlide17
Is the world more hazardous?Slide18
Current trends in Natural hazards
Using the textbooks I would like you to annotate each of the graphs provided, giving a description and explanation of the current trends.Magnitude
FrequencyNumber of deaths
Economic costsNumber involved