EARTHSS 17 Study Guide - Midterm Guide: When Disaster Strikes..., Move, Basalt
16 Oct 2016
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Document Summary
Energy and materials transferred to and from each of these. Natural hazard: poses a threat to human life or property. Natural disaster: natural event that causes significant damage to life or property. Catastrophe: when a natural event kills or injures large numbers of people or causes extensive property damage. Tendency to overestimate the likelihood of good events happening to us. Belief that the future will probably be much better than the past and present. When disaster strikes, we are not ready. There are more small events than big events. Cyclic events: those that occur at predictable intervals. Forecast: probability that natural event of particular magnitude will happen within recurrence interval or frequency, on average. Chance of 50 year old flood is 1 in 50 every year. Prediction: a statement that a future event will occur at a certain time at a certain place. Magnitude: the relative size of an earthquake, recorded as the amplitude of shaking on a seismograph.
