Landslide hazard spatial distribution for disaster mitigation in tutur sub-district

Landslide hazard spatial distribution for disaster mitigation in tutur sub-district

Authors

  • Titi Rahayuningsih Department of Civil Engineering, Universitas Negeri Malang, Malang, Indonesia
  • Nurul Fitri Alya Department of Civil Engineering, Universitas Negeri Malang, Malang, Indonesia
  • Vita Ayu Kusuma Dewi Department of Civil Engineering, Universitas Negeri Malang, Malang, Indonesia
  • Mega Septia Sarda Dewi Department of Civil Engineering, Universitas Negeri Malang, Malang, Indonesia
  • Eko Suwarno Department of Civil Engineering, Universitas Negeri Malang, Malang, Indonesia
  • Antelas Eka Winahyo Department of Civil Engineering, Universitas Negeri Malang, Malang, Indonesia

Keywords:

Landslide susceptibility, GIS, Weighted overlay, Disaster mitigation

Abstract

Landslides pose a significant threat to safety and infrastructure in the Tutur District, particularly following recent incidents that blocked major roads and inundated residential areas. This study was conducted to map the area’s most at risk and understand the factors driving this instability. Using a geographic computer model, the research analyzed five key environmental factors: slope, precipitation, rock types, soil types, and how the land is currently used. The findings reveal that over half of the Tutur District (55.3%) falls into a high-risk category, with specific zones in villages like Ngadirejo and Tlogosari identified as being at very high risk. These dangerous zones are primarily caused by a combination of extremely steep slopes and intensive farming activities on loose volcanic soil. Comparisons of actual landslide events confirmed the high accuracy of the map. Notably, the study found that several government offices used for emergency gathering and primary transport routes are in these high-risk zones. These results provide a vital tool for local authorities to prioritize safety reinforcements, install warning systems, and manage land use to prevent future disasters.

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2026-05-04

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Landslide hazard spatial distribution for disaster mitigation in tutur sub-district. (2026). BIS Energy and Engineering, 3, V326003. https://doi.org/10.31603/biseeng.515

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