A natural disaster is a major adverse event resulting from natural processes of the Earth; examples include floods, severe weather, volcanic eruptions, earthquakes, and other geologic processes. Scientists and scholars all over the world worry about the great number of natural disasters which occur more frequently with every new year. Scientists expect that their number will become only higher, because most of the natural disasters are the result of poor ecological environment of the planet. People are too careless and have spoilt the nature of the world to such extent that such phenomena like floods, wildfires, droughts have become typical to certain regions of the world where they have never occurred before. A natural disaster can cause loss of life or property damage, and typically leaves some economic damage