Which are the main components of disaster management?

Hint: The term disaster can be defined as a sudden and calamitous event. A disaster generally seriously disrupts/damages the functioning of a community or society. These losses exceed the community's or society's ability to cope using its resources that It causes human, material, economic and environmental losses.

Complete answer:
A disaster is a disruption on a massive scale, either natural or human-made, occurring in short or long periods.
The process of disaster management is preparedness, response, and recovery to lessen the impact of disasters.
The main components of disaster management are:
Preparation: A plan is created, such as to minimize the damage if a disaster occurs.
Redemption: A plan to minimize the damage to society and the country.
Preparedness: A plan is made out to receive quick responses from the public and administration.
Impact of disaster Intensity of disaster and disaster management are reviewed, and the next step is taken.
Response: Providing immediate response after an incident has occurred.
Resurgence: It includes the steps which are required for the welfare and rehabilitation of the nation.
Restoration: It includes steps useful for the progress of the nation and rehabilitation.

Note:
Disaster Management is an integrated process of planning, organizing, coordinating, and implementing measures that are necessary in case of a disaster. These steps include-
Prevention of threat, Reduction of risk or its consequences, Readiness to deal, Promptness in coping with a disaster, Assessing the severity of the effects, Rescue and Relief, Rehabilitation, and Reconstruction in response to any disaster.