Different governments are recurring to stock prepositioning to improve immediate disaster response because it can reduce procurement delays and distribution lead-time. However, it can be an expensive policy. Mexico has used this policy for several years with poor results. The purpose of this research is to integrate GIS and optimisation for the analysis of the location of warehousing facilities and prepositioning of stock at a national level. The system was tested using data obtained from Mexican disaster authorities and compared to the current policy, showing better coverage in terms of quality and a reduction of shipment time for several areas
