A disaster is a mishap or hazard which causes huge loss of life and property and disrupts the balance of the economy. It is a tragic event with drastic consequences for living beings as well as social and individual development.
A disaster can be caused by either natural or man-made factors. Both these factors need to be taken care of to prevent a disaster or lessen its impact.
Disasters also arise due to inefficient management of risks. If a safety net is devised to address the potential risks, it would lead to reduction in damages triggered by disasters. Developing countries are more vulnerable to disasters.
What is a Hazard?
A hazard is any phenomena that has the potential to cause destruction to life and property. A hazard become a disaster when the potential to cause destruction is fulfilled. When there is harm to life and property of humans, the hazard is termed a disaster.
Hazards do not necessarily cause any destruction. If an earthquake was to hit a barren mountain with no human community, it would simply be a natural phenomenon; or a natural hazard. Hazards can be geological (the most common), biological (epidemics) or chemical (nuclear power plant leaks, chemical industry leaks, etc).
Thus, all disasters are hazards, but all hazards are not disasters.
Classification of Disasters:
Impact of Disaster:
Disaster Risk Reduction in India Status Report 2020: Impact of Disasters
Between 1991 and 2005, disasters have already reduced India’s GDP by a total of 2 percent.
In the case of Kerala flooding 2018 , 1.4 million people had to be evacuated from the flood waters, the access to piped water was disrupted to more than 6.7 million persons, and more than 3 million shallow wells became inoperable or contaminated across the six worst affected districts.
Indian Ocean Tsunami caused US$ 30 million in reconstruction costs to the health infrastructure and overwhelmed many areas in terms of their ability to provide care.