Font size
WorksheetsHazard Management
Total questions: 16
Worksheet time: 13mins
What is a hazard?
A potential danger or risk caused by natural or human causes and has the potential to cause loss of life, injury, property, socio-economic disruption.
A catastrophic event that causes serious loss of life or disruption to a community.
Natural factors that cause loss of human life.
Cultural factors causing a large disruption to the economic and social functioning of an area.
Which three factors combine to make a hazard a disaster?
Causes severe damage and endangers lives
A country that has a small defense force and police force.
Event occurs near property and population.
An area that is very vulnerable due to low income, lack of emergency plans and few preventative measures.
Which of the following are natural hazards?
Geomorphic eg. volcano and tsunami
Atmospheric eg. trpoical cyclone, heat wave,bush fire
Technological hazards eg. train crash, oil spill, nuclear explosion.
Hyrogical eg. drought, flood.
Spatial distribution refers to
how features or objects are arranged on the earth's surface.
how two features are linked in a similar pattern on the earth's surface.
how planets are arranged.
the arrangement of features over time.
The measurement of the strength or intensity of a hazard is
magnitude
duration
frequency
scale of impact
The length of time people are exposed to a hazard can affect the impact of the hazard. This is known as the hazard
magnitude
duration
frequency
probability
The number of times an area experiences the hazard is known as the hazard
frequency
magnitude
duration
probability
If a country tries to mitigate the impact. of a hazard it
develops strategies and plans to reduce the severity of the hazard.
reduces the economic impact of the hazard.
develops strategies to protect natural vegetation from the hazard.
reduces the social impact of a hazard.
What does risk mean?
How strong the hazard is.
A person performing a dangerous act.
the probability of a hazard causing harmful consequences on people.
how exposed people are to the hazard.
Risk can be thought of or calulated by
strength of the hazard x size of the population
vulnerability / size of population
hazard x damage caused
hazard x vulnerability
What factors affect the level of vulnerability?
Level of affluence ( wealth) of population
Education concerning hazard.
Health and age of population
Emergency infrastructure and warning systems
Human actions that increase hazard eg. deforestation, building on slopes.
What are the three stages of risk management?
identify, manage, recovery
spatial, technical, economic.
pre-disaster- mitigation, prevention,prepare.
During disaster- response
Post disaster- recovery, relief, rescue and rehabilitation.
mitiagtion
prevention
preparedness
Of these four natural hazards, which is the hardest to predict?
Tsunamis
Volcanoes
Tropical Cyclones
Earthquakes
