Revisiting emergencies, disasters, & catastrophes: Adding duration to the hazard event classification

Abstract

Disaster researchers have long sought to classify hazard events using various characteristics. Despite varying perspectives on how hazard events differ, the most commonly used classification in disaster scholarship categorizes hazard events as either emergencies, disasters, or catastrophes, which generally are described as being distinguished based on impacts, needs, stakeholder involvement, and management approach. Although this hazard event classification is useful, disaster scholars have noted it needs further refinement and development. In an effort to address these calls from disaster scholars and create a more robust hazard event classification, the traditional classification is revisited and expanded. Specifically, this article proposes the addition of a second dimension, response duration, to the existing hazard event type classification, which to this point has largely been defined by scale of impacts, needs, stakeholder involvement, and management approach. This paper argues short and long-duration emergencies, disasters, and catastrophes are categorically different and therefore require different management approaches, and can be used to categorize and distinguish between events such as COVID-19 and Hurricane Katrina and the Levee Failure. The proposed change would have important implications for emergency management practice and policy and would encourage a re-evaluation of the kinds of hazard events considered to be part of the academic purview of emergency management.