Journal of Geographical Sciences and Education
Vol 3 No 2 (2025): Journal of Geographical Sciences and Education

Pemetaan Daerah Rawan Longsor di Kota Ternate, Indonesia Menggunakan Sistem Informasi Geografis

Rakuasa, Heinrich (Unknown)
Khromykh, Vadim V. (Unknown)
Rifai, Ahmat (Unknown)



Article Info

Publish Date
02 Jun 2025

Abstract

Landslides seriously threaten safety and sustainable development in Ternate City, Indonesia, due to tectonic activity, steep topography, high rainfall, and urbanization pressure. This study aims to map landslide-prone areas using Geographic Information System and the weighted overlay method by integrating seven parameters: elevation, slope, soil type, geology, land use, rainfall, and distance from active faults. The analysis results show that slopes >40% and areas near active faults have the highest risk. Based on the total area of 10,162 ha, 51% (5,197 ha) is classified as a high-risk zone, 31% (3,123 ha) as medium risk, and 18% (1,842 ha) as low risk. These findings emphasize the need for risk-zoning-based mitigation priorities, such as strengthening spatial planning policies, building disaster-resistant infrastructure, and educating communities. This research not only provides a scientific basis for development planning and disaster risk reduction in Ternate but also provides a methodological framework that can be adapted in other landslide-prone areas, especially in volcanic island regions with similar geographical conditions.

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Journal Info

Abbrev

jgs

Publisher

Subject

Astronomy Education

Description

Journal of Geographical Sciences and Education is a journal publishes original research, review, and short communication (written by researchers, academicians, professional, and practitioners) which utilizes geographic and environment approaches (human, physical landscape, nature-society and GIS) to ...