A change in social can be caused by disasters. Social change always is not for better depending on affected population resources (Oliver, 2002). Change in disaster study started changing with theories like as Carr discussing a cultural protection collapse. Carr made a discussion on how we got the tools in place encountering the act of disasters though if there was lack of these tools there was no more protection.
Disaster is any occurrence that causes ecological disruption, damage, human life loss, health services and health deterioration on sufficient scale to warrant response extraordinary from the outside area or community affected (De Boer, 2000). In addition, it can be also defined as the series or event which disrupts the normal activities seriously. Disaster means a sudden or great misfortune. This may include tsunami; fires; floods; droughts; flood and many others.
The major disasters naturally may include earthquake, cyclone, flood, and drought. Minor disasters naturally include storm, heat waves, cold wave, mud slides, and thunderstorm. The major disasters that may occur in man made activities include deforestation, fires, setting of fires, and pollution due to their prawn activities. Minor man made occurrence of disasters may include accidents on the roads or trains, riots, industrial riots, food poisoning, and