hazards -aspects of hazard and how they affect human responses Flashcards
what causes a hazard event to vary?
.location
.frequency
.strength
what do these aspects do?
.they create different types of hazards
.influence how people respond to these hazards
how many aspects of hazards are there?
5
what are the aspects of hazards?
.incidence (frequency)
.distribution
.intensity
.magnitude
.level of development
how might incidence affect the human responses to a hazard?
.low incidence hazards may be harder to predict and have less management strategies put in place, so the hazard could be more catastrophic
.low incidence hazards are usually more intense than high incidence hazards
what is meant by distribution?
.the spread of where hazards occur geographically
how might distribution affect the human responses to a hazard?
.areas of high hazard distribution are likely to have a lot of management strategies, and those living there will be adapted to the hazardous landscape because they are used to hazards occuring comapred to places with low hazard distribution
what is meant by intensity?
.the power of a hazard and how damaging the effects are
.intensity focues on the effects on the person, and can change dependent on the distance or the management strategies
how might the intensity of hazard affect the human responses?
.the stronger the hazard the harder it is to manage, meaning the social and economic impacts may be harder to overcome
what is meant by magnitude?
.the size of the hazard, usually this is how a hazard’s intensity is measured
how might the magnitude of a hazard affect the human responses?
.high magnitude hazards will have worse effects, so they require more management in order to lessen the effects and ensure a normal life can be carried out after the hazard
.magnitude is usually definable and can be a number - this does not change
how might level of development affect the human responses to a hazard?
.a hazard of the same magnitude may have different effects in two places of contrasting levels of development
-an area with a lower level of development is less likely to have effective mitigation strategies as they cannot afford it so, effects are likely to be more catastrophic
although some high income countries are not as prepared so they can lack the management strategies for an event
why might level of development not have the most important role to play in how people respond to a hazard?
.because it is more to do with how these countries use their development for mitigation