The wind, waves and all the natural dynamics show the complex interplay between the lithosphere, hydrosphere, atmosphere and biosphere. Much of this dynamic are to humans almost imperceptible, such as erosion and sedimentation caused by wind, rivers, glaciers, and so on. However, there are times when behavior becomes violent natural elements, such as earthquakes and volcanic eruptions, putting at risk the companies, assets and activities.
An earthquake, hurricane or other extreme event of nature becomes a disaster or disaster when loss of life or economic causes. That is, is called "Natural Disaster"only when the social or economic problem is triggered by a freak of nature. Golden Loe says "... a potential danger becomes a disaster if it occurs where people live. "