The coastal abrasion disaster that occurred in the Meranti Islands Regency, precisely in the West Rangsang Subdistrict, Meranti Islands Regency has threatened and had an impact on losses both in the form of physical and nonphysical losses. In 2020, the length of coastal abrasion in Rangsang Barat District will reach 10.75 km2. Rangsang Barat sub-district is an area on the coast that has st…