Emergency management (or disaster management) is the discipline of  dealing with and avoiding risks. It is a discipline that involves  preparing for disaster before it occurs, disaster response (e.g.,  emergency evacuation, quarantine, mass decontamination, etc.), and  supporting, and rebuilding society after natural or human-made disasters  have occurred. In general, any Emergency management is the continuous  process by which all individuals, groups, and communities manage hazards  in an effort to avoid or ameliorate the impact of disasters resulting  from the hazards. Actions taken depend in part on perceptions of risk of  those exposed. Effective emergency management relies on thorough  integration of emergency plans at all levels of government and  non-government involvement. Activities at each level
Emergency  Management is one of a number of terms which, since the end of the Cold  War, have largely replaced Civil defense, whose original focus was  protecting civilians from military attack. The thinking today focuses on  a more general intent to protect the civilian population in times of  peace as well as in times of calamity. 
What do think are we well  prepared for the disasters to come now or in future and what we do?  should we be faced by a situation like what happened in Haiti or in  Chile? When they were struck by the earth-quakes? Are our governments  prepared with the trained personnel and resources should such a disaster  occur? And how stable are our new building that are mushroom everywhere  everyday?