Introduction to Geohazard Flashcards
a process or phenomenon that may pose a threat to human lives and or properties
hazard
are geological processes or phenomenon that may cause loss of life, injury, or other health impacts
geohazards
t or f: risk can be totally eliminated
F not totally
the potential loss of life, injury, or destroyed or damaged assests
risk
risk is a function of:
hazard, exposure, vulnerability, and capacity
risk formula
risk = probablity of hazard occuring x expected impacts
risk that are not totally eliminated even after several measures
residual risk
two types of risk
acceptable and residual
risk is a function of
hazard, vulnerability, exposure, and capacity
a serious disruption of the functioning of a community or a society at any scale due to hazardous events
disaster
disaster are hazardous events interacting with conditions of:
exposure, vulnerability, and capacity
a type of disaster that emerges gradually
slow-onset disaster or (incremental processes)
a type of disaster that occurs suddenly
sudden-onset disaster (sporadic processes)
disaster leads to one or more of the following losses and impacts
human, material, economic, and environmental losses and impact
a type of disaster that is triggered by a hazardous event that emerges quickly or unexpectedly
sudden-onset disaster (sporadic processes)
a disaster that emerges gradually overtime
slow-onset disaster (incremental processes)
examples of slow-onset disasters:
drought, desertification, sea-level rise, epidemic disease
examples of sudden-onset disasters
earthquake, volcanic eruption, flash flood, chemical explosion, critical infrastructure failure, transport accident
susceptibility is related to
spatial aspects of hazard
related to spatial aspects of hazard, tendency of an area to undergo the effects of hazards
susceptibility or exposure
degree to which the elements at risk are likely to experience hazard events of different magnitudes/scales
susceptibility
ability of the population to cope or prepare to the effects or impacts of a hazard
adaptive capacity
degree of inability to resist to the effects/impacts of a hazard or to respond when a disaster has occured
vulnerability
t or f: vulnerability and adaptive capacity have inverse relationship
T
lenses of vulnerability
physical, social, economic, environmental, or industrial
vulnerability is a function of
adaptive capacity, susceptibility, and sensitivity
do hazards always lead to disaster?
NO
geologic processes that affect every human on earth
natural hazards