The word ‘disaster’ is synonymous with ‘emergency’. A disaster is a natural or man-made (or technological) hazard resulting in an event of substantial extent causing significant physical damage or destruction, loss of life, or drastic change to the environment. A disaster can be defined as any tragic event stemming from events such as earthquakes, floods, catastrophic accidents, fires, or explosions. It is a phenomenon that can cause damage to life and property and destroy the economic, social and cultural life of people.
In contemporary academia, disasters are seen as the consequence of inappropriately managed risk. These risks are the product of a combination of both hazard/s and vulnerability. Hazards that strike in areas with low vulnerability will never become disasters, as is the case in uninhabited regions.
Developing countries suffer the greatest costs when a disaster hits – more than 95 percent of all deaths caused by disasters occur in developing countries, and losses due to natural disasters are 20 times greater (as a percentage of GDP) in developing countries than in industrialized countries.
Disaster management is a process or strategy that is implemented before, during or after any type of catastrophic event takes place. This process can be initiated whenever anything threatens to disrupt normal operations or puts people's lives at risk. Governments at all levels as well as many businesses create their own disaster plans that make it possible to overcome various catastrophes and return to functioning normally as quickly as possible.
There are four essential parts to disaster management: prevention, preparation, relief and recovery. Not all catastrophes can be prevented, but many types can be avoided, and the effects of others can be mitigated. Preparation might include long-term plans for readiness as well as processes that can be done quickly when a disaster seems imminent, such as when a hurricane is expected