AbstractUnderstanding the benefits of coordination and collaboration functions and using them for the disaster centers reorganization is a key process for humanitarian logistics. Inter-organizational coordination is important factor for disaster coordination centers but complicated in sub-regions. Studies in the disaster emergency management field will lead to discovering effective methods and reduced losses. Therefore, the clusters for coordination were suggested as crucial factors to improve the disaster emergency and logistical systems. This paper is focused on discovering the clusters for collaboration within disaster coordination operations. The paper comments and discusses the clusters on different sub-regions and network sub-groups f...