EOSC 114 Study Guide - Quiz Guide: Continental Crust, Volcanic Arc, Oceanic Crust

• School: UBC
• Department: Earth and Ocean Sciences
• Course: EOSC 114
• Professor: Sarah Sherman

Document Summary

Describe population growth and explain why it is important for natural disasters. Globally, both: death (fatalities) and, destruction (economic losses) from natural disasters are increasing. Means more people and more structures in hazardous settings. But the hazards themselves are not increasing in frequency or severity. Compare and contrast risk, perception of risk, hazard, and vulnerability. Any event or situation that could cause human (deaths, injuries) or economic harm (property and prosperity) Probability that any given hazardous event might occur(chance of a potential loss) The severity of problems that a community (people, property, infrastructure, resources, environment) will suffer if exposed to a particular natural hazard. Explain why disaster scales are based on the order-of-magnitude concept. Rp = average number of years between disaster events of same magnitude (m). Rp(m)= time span of data/ # of cases of magnitude m. Iron catastrophe: fe and nickel melted, dense fe sank to form core. Chemical differentiation: lighter elements up, denser elements down.