Berlian Indah Asmara Kandi, Ferrayati Masitoh, Abdullah Nurdien Syaiful Islam, Kurniawan
One of the major post-disaster challenges in Palu City is the absence of comprehensive assessment on land capability to support safe and sustainable spatial planning in seismically vulnerable areas. The coastal zone of Palu City is highly prone to seismic hazards, particularly earthquakes and liquefaction, making land-use assessment critical for post-disaster recovery. This study aims to analyze Seismic Land Capability (SLC) to determine land capability zones following seismic events. SLC refers to the land's ability to withstand seismic activity based on geophysical and environmental characteristics. The analysis employs a spatial model using the Weighted Score Method (WSM) derived from the Analytical Hierarchy Process (AHP), integrated within a Geographic Information System (GIS). The results are superimposed with regional carrying and supporting capacities to assess development feasibility. Parameters considered include soil type, seismic history, geological structure, topography, and land use factors. The findings indicate that most coastal areas in Palu fall into the very low to medium development capability class, reflecting varying levels of vulnerability to earthquake impacts. This is validated through long-section profiling of borehole data, which confirms weak soil layers. The study provides valuable insights for zoning earthquake-prone areas and aligning them with ecological carrying capacities, supporting disaster-resilient urban planning and sustainable reconstruction in seismically vulnerable regions. © Published under licence by IOP Publishing Ltd.
Department of Geography, Universitas Negeri Malang, Indonesia; PT Agrinas Palma Nusantara (Persero), Indonesia
