when does a hazard leads to disaster?

thank you shreya....

A hazard can become a disaster when the imapact of the hazard is more on the society.this leads to cause in death,loss and economic loss.

 a disaster occures when the impact of hazard on a section of society is such that the people our unable to cop with the cause of death event loss of property and economic losses

 it due force or earthquake

when does ahazard leads to a disaster