A natural disaster may be a major adverse event ensuing from natural processes of the Earth; examples square measure floods, hurricanes, tornadoes, volcanic eruptions, earthquakes, tsunamis, storms, and alternative earth science processes. A natural disaster will cause loss of life or harm property, and generally leaves some economic harm in its wake, the severity of that depends on the affected population's resilience (ability to recover) and conjointly on the infrastructure on the market. An adverse event won't rise to the extent of a disaster if it happens in a part while not vulnerable population. during a vulnerable space, however, like Asian country throughout the 2015 earthquake, associate earthquake will have fateful consequences and leave lasting harm, which might need years to repair. A landslide is delineate as associate outward associated downward slope movement of an abundance of slope-forming materials as well as rock, soil, artificial, or maybe a mix of those things. During warfare I, associate calculable forty,000 to 80,000 troopers died as a results of avalanches throughout the mountain campaign within the Alps at the Austrian-Italian front. several of the avalanches were caused by cannon fire. associate earthquake is that the results of a fulminant unharness of energy within the crust that makes seismal waves. At the surface, earthquakes manifest themselves by vibration, shaking, and typically displacement of the bottom. Earthquakes square measure caused by slippage inside earth science faults. The underground purpose of origin of the earthquake is termed the seismal focus. the purpose directly on top of the main target on the surface is termed the geographic point.