Tectonics 1.4 Flashcards
What is a natural hazard?
Natural events; Potential to harm people/property;
What is a disaster?
Realisation of the natural hazard;
How does the UN define a natural hazard?
Serious disruption; Functioning of a community/society;
What does the UN definition involve in terms of losses and impacts?
Widespread -
Human; Material; Economic; Environmental;
What does the UN definition say about a community/society’s ability to cope?
Exceeds; Using its own resources;
What do large insurers define a natural hazard as?
Economic losses ^$1.5 Million
What does the Degg’s model show?
Intersection between a hazardous natural event and a vulnerable population;
What does human/economic losses turn a natural hazard into?
A disaster;
Name some hazardous natural events;
Earthquake; Hurricane; Landslide
What is the death threshold for a disaster?
10 or more;
What is the threshold for people affected to be considered a disaster?
100;
What is the economic losses threshold in order to be considered a disaster?
US $1 million;
What is unpredictable about hazards?
Timing; Magnitude;
What is lack of alternatives?
People saying lack of options;
What are some lack of alternatives?
Work; Space; Skills; Knowledge;
What is meant by dynamic hazards?
Change over time affected by human influence/ cost-benefits