Cover Image
close this bookAn Overview of Disaster Management (Department of Humanitarian Affairs/United Nations Disaster Relief Office - United Nations Development Programme , 1992, 136 p.)
close this folderChapter 9. Disaster response
close this folderAims of emergency and post-disaster assistance
View the document(introduction...)
View the documentWarning
View the documentEvacuation/migration
View the documentSearch and rescue
View the documentPost-disaster assessment
View the documentEmergency relief
View the documentLogistics and supply
View the documentCommunication and information management
View the documentSurvivor response and coping
View the documentSecurity
View the documentEmergency operations management
View the documentRehabilitation and reconstruction


SUDDEN ONSET Evacuation involves the relocation of a population from zones at risk of an imminent disaster to a safer location. Evacuation is most commonly associated with tropical storms but is also a frequent requirement with technological or industrial accidents. For evacuation to work there must be a timely and accurate warning system, clear identification of escape routes, an established policy that requires everyone to evacuate when an order is given, and a public education programme to make the community aware of the plan.

SLOW ONSET The movement of people from the zone where they are at risk to a safer site is not, in fact, evacuation but crisis-induced migration. This movement is usually not organized and coordinated by authorities but is a spontaneous response to the perception by the migrants that food and/or security can be obtained elsewhere.