GEOLOGY 1 Lecture 27: Geology 1 - L27
Document Summary
Criteria: a particular event in which 10 + people are killed; 100 or more people are affected; a declaration of emergency is issued, or there is a request for international assistance. These dangerous natural processes include earthquakes, floods, volcanic activities, landslides, and storms. The occurrences of natural disasters are increasing. Natural disasters cause great life and/or property damage. Earthquakes, floods, and cyclones (hurricanes) killed several million people, with an average worldwide annual loss of life of about 150,000 people. Annual average property damage exceeds billion. Impact risks depend on the type of hazards and the spatial and temporal relationship to our environment. Death and damages: more loss of life from a major natural disaster in developing countries; more property damage in more developed countries. Catastrophe: disastrous situations requiring a long process to recover from significant damage. Forecast: the certainty of the event is given as the % change of it happening.
