Mass Casualty 2 : The definition of disaster implies a discrepancy between number of victims and its treatment capacity. This does not necessarily means a mass casualty situation, in which case the number of victims is overwhelming
By M. Debacker, B. Domres, Walter Hays, J. de Boer, Prehospital and Disaster Medicine, Disaster Terminology, Glossary of New Concepts in Disaster Medicine, USA 2002, http://www.eird.org/isdr-biblio/PDF/Prehospital%20 and%20disaster%20medicine.pdf, (D/DM - Amer) {831}