Geography -hazards: what is a hazard Flashcards
What is a hazard?
a natural hazard is a natural event or process which has the potential to effect people (kill or injure people) (economic damage).
What is a natural event?
an event that doesn’t effect people or property.
What is a natural disaster?
a natural event that kills over 10 people, effects over 100, results in a state of emergency and the need for international help.
What are the 3 types of hazard?
.geophysical.
.atmospheric.
.hydrospheric.
When is a hazard a disaster?
.kills over 10 people
.effects over 10 people.
.government declaration of emergency.
.request by government for international assistance.
What makes an area more vulnerable?
.proximity to the hazard.
.population density.
.level of development.
.magnitude of the hazard.
.duration of the hazard.
.frequency of the hazard.
.demographic of the area.
Why do people put themselves at risk?
.hazards are unpredictable: -cannot predict frequency, magnitude more scale.
.lack of alternatives: -people cannot simply move from one place to another due to social, political, cultural and economic reasons.
.changing level of risk: -places that were once relatively safe may not be safe anymore.
.cost/benefit: -many hazardous areas offer benefits that outweigh the risk.
What is the risk equation?
.(hazard x vulnerability to the hazard) / capacity to cope or recover.