From the descriptions of mass-wasting processes and specific events above, it should be apparent that mass wasting presents a significant hazard to humans. The greatest hazards are from building on mountain slopes, which when oversteepened may fail cata-strophically. The fastest moving flows present the greatest threat to human life, with examples of the debris avalanches at Vaiont, Italy, in 1963, Nevados Huascaran, Peru, in 1962 and 1970, and the Leyte, Philippines, disaster of 2006 providing grim examples with tens of thousands of deaths. Gradual creep moves cultural and natural features downhill, which accounts for the greatest cumulative amount of material moved through mass-wasting events. These slow flows do not usually hurt people but they do cause billions of dollars in damages every year. Occasionally slow flows will accelerate into fast-moving debris flows, so it is important to monitor areas that may experience accelerated creep. Human-built structures are not designed to move downhill or to be covered in debris, so mass wasting needs to be appreciated and accounted for when designing communities, homes, roads, pipelines, and other cultural features. The best planning involves not building in areas that pose a significant hazard, but if building is done, the hazards should be minimized through slope engineering, as described below.
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Disasters: Why No ones Really 100 Safe. This is common knowledgethat disaster is everywhere. Its in the streets, its inside your campuses, and it can even be found inside your home. The question is not whether we are safe because no one is really THAT secure anymore but whether we can do something to lessen the odds of ever becoming a victim.