Hazard, Risk, Vulnerability Analysis Flashcards
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Read the first 7 Hazard, Risk, Vulnerability Analysis flashcards as text
In the context of emergency management, which formula best represents the relationship between hazard, vulnerability, and risk?
Answer: Risk = Hazard × Vulnerability
Risk is calculated as the product of hazard (likelihood and severity) multiplied by vulnerability (susceptibility of the exposed element).
A 'probabilistic hazard assessment' differs from a 'deterministic hazard assessment' primarily because it:
Answer: Assigns likelihoods to multiple possible outcomes
Probabilistic assessments quantify the likelihood of various hazard scenarios occurring, whereas deterministic assessments evaluate a single defined scenario.
Which of the following best describes 'cascading hazards'?
Answer: A primary event that triggers secondary and tertiary hazardous events
Cascading hazards occur when a primary event (e.g., earthquake) triggers subsequent events (e.g., tsunami, landslide) that compound overall impact.
When conducting a community vulnerability assessment, 'physical vulnerability' refers to:
Answer: The susceptibility of built structures and infrastructure to damage
Physical vulnerability addresses how susceptible buildings, roads, utilities, and infrastructure are to damage from a given hazard.
The Hyogo Framework for Action (2005–2015) emphasized which core priority for disaster risk reduction?
Answer: Ensuring disaster risk reduction is a national and local priority with a strong institutional basis
The Hyogo Framework's first priority was ensuring that disaster risk reduction becomes a national and local priority with a strong institutional basis for implementation.
Which indicator would MOST directly measure 'social vulnerability' in a hazard analysis?
Answer: Percentage of population with limited English proficiency
Limited English proficiency is a social vulnerability indicator because it affects a population's ability to receive warnings, access resources, and recover from disasters.
A 'hazard profile' typically includes which of the following components?
Answer: Frequency, magnitude, duration, speed of onset, and spatial extent
A hazard profile characterizes a hazard by its frequency, magnitude, duration, speed of onset, and spatial extent to inform risk analysis.
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