Examining local institutional networks for sustainable disaster management: Empirical evidence from the South-West coastal areas in Bangladesh

•Local social networks are a vital contributor to community resilience from disasters.•Social network analysis was applied for local horizontal disaster management institutions in Bangladesh.•The relationship among actors are strong during preparedness and response phases than recovery and mitigation.•The collaboration and coordination need to be enhanced during recovery and mitigation phases.•The actual implementation of the disaster management policies seems to be far behind what the policy documents indicate.