WORLD AT RISK What you should achieve this lesson Know some key terms in relation to the topic Understand how to classify different hazard types Recognise the difference between a natural hazard and a disaster ID: 294663
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Slide1
TYPES OF HAZARD
WORLD AT RISKSlide2
What you should achieve this lesson
Know some key terms in relation to the topicUnderstand how to classify different hazard types
Recognise the difference between a natural hazard and a disasterSlide3
Key terms
With a partner I want you to try to come up with and write a definition of the following:Natural Hazard
DisasterRisk
VulnerabilityHydro-meteorological hazardGeophysical hazardSlide4
Natural hazard
A natural hazard is a naturally occurring
process or event
which affects people, e.g. causing loss of life or injury, economic damage, disruption to people’s lives or environmental degradation.Without people it is just a natural event not a hazard, it needs the interaction of people to make it a hazard.Slide5
Natural hazard
Hazardous geophysical event e.g. flood or earthquake
Vulnerable population: susceptible to human and economic loss
NO NATURAL HAZARD
No interaction of human and physical systemsSlide6
Natural hazard
(Dregg’s model)
Hazardous geophysical event e.g. flood or earthquake
Vulnerable population: susceptible to human and economic loss
NATURAL HAZARDInteraction of human and physical systems
DISASTERSlide7
Disaster
“The realisation of a hazard, although there is no universally agreed definition of the scale on which loss has to occur to qualify as a disaster.”
(Smith 1996)Slide8
Risk
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.Slide9
Vulnerability
Vulnerability is the degree to which you are
susceptible to physical or emotional injury or attackSlide10
What is the connection?
GROUP 1
ALL ARE
HYDRO-METEROLOGICAL HAZARDSSlide11
What is the connection?
GROUP 2
ALL ARE
GEOPHYSICAL HAZARDSSlide12
What is the connection?
GROUP 3
COULD FIT INTO EITHERSlide13
Hydro-meteorological hazard
Discuss with your partner what you think this meansHydro-meteorological Hazard
Natural processes or phenomena of atmospheric, hydrological or oceanographic nature, which may cause the loss of life or injury, property damage, social and economic disruption or environmental degradationSlide14
HYDRO-meteorological hazards
Examples:Cyclones, droughts
, floods, storm surges, thunder/hailstorms, rain and wind storms, blizzards and other severe storms; desertification,
wildland fires, temperature extremes, sand or dust storms; permafrost and snow or ice avalanches.Hydrometeorological hazards can be single, sequential or combined in their origin and effects. Slide15
Geophysical hazards
Discuss with your partner what you think this meansGeophysical HazardNatural hazards where the principal causal agent is
geological, geomorphological (e.g. landslides, tsunamis, volcanoes and earthquakes). They
do not include biological hazards.Slide16
Chronic hazards
Discuss with your partner what you think this meansChronic HazardA hazard that is
long-term and persistentExamples:
El NinoGlobal WarmingSlide17
What do you think?
Are hazards really ‘natural’?Slide18
homework
Create a mini case study on Hurricane IreneWatch the newsRead the papers
Look onlineWhere and whyWhat impacts have there been (short and long term; local, national, international)
CostWere any precautionary measures in place