The Disaster Response Mobilization System: a community‐based disaster preparedness strategy in Puerto Rico

Abstract Puerto Rico is increasingly vulnerable to natural hazards that exacerbate ongoing humanitarian and economic crises. Historically, local and federal recovery efforts have been slow and inadequate, leaving community members as first responders post disaster. Community‐based disaster preparedness can reduce vulnerability and improve disaster management strategies, yet there is an absence of implementation tools appropriate for grassroots organisations. This article introduces the Disaster Response Mobilization System (DRMS) co‐developed with seven grassroots organisations in Puerto Rico from 2021–24 and discusses one piloted implementation in detail. The DRMS supports community‐driven disaster management capacities by assessing household preparedness, mapping household assets and vulnerabilities, mobilising community resources, and expediting external assistance following a disaster. We reflect on its value and limitations, demonstrate pathways for scaling up and adaptation in other settings, and contend that it can be an effective strategy to advance internal and external response before and after disasters while encouraging collaboration and the building of climate resilience.