ATOC 185 Lecture Notes - Lecture 4: Juan De Fuca Plate, Convergent Boundary, San Andreas Fault
14 Jul 2016
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Document Summary
Dis- unfavourable, astro- stars (to ancient people, disasters were precipitated by the stars) Destructive natural events: floods: local to regional: earthquakes: local to regional. 4: climate change: local, regional and global tsunamis: regional to global. Hazard: potential threat to humans and their welfare. Risk: probability of loss (deaths, injuries, damage, disruption of economic activity) as a result of a particular natural event. Vulnerability: potential loss, or degree of loss, from the event (0= no damage, 1= total loss) Disaster: a hazardous event affecting a community in an adverse way such that essential social structures and functions are disrupted. Statement that a particular natural hazard will occur: with given probability during a certain time frame in a specified geographic area. Mitigation: efforts to reduce or minimize the effects of natural hazards on a community. This requires a statistical approach such as probabilities since we don"t fully understand many natural processes.
