Research Article| May 01, 2010 Mapping Landslide Hazards in Western Nepal: Comparing Qualitative and Quantitative Approaches NETRA R REGMI; NETRA R REGMI 1High Alpine and Arctic Research Program (HAARP), Department of Geology and Geophysics, Texas A&M UniversityCollege Station, TX 77843 Search for other works by this author on: GSW Google Scholar JOHN R GIARDINO; JOHN R GIARDINO 1High Alpine and Arctic Research Program (HAARP), Department of Geology and Geophysics, Texas A&M UniversityCollege Station, TX 77843 Search for other works by this author on: GSW Google Scholar JOHN D VITEK; JOHN D VITEK 1High Alpine and Arctic Research Program (HAARP), Department of Geology and Geophysics, Texas A&M UniversityCollege Station, TX 77843 Search for other works by this author on: GSW Google Scholar VISHNU DANGOL VISHNU DANGOL 2Department of Geology, Tri-Chandra Campus, Tribhuvan UniversityKatmandu Nepal Search for other works by this author on: GSW Google Scholar Author and Article Information NETRA R REGMI 1High Alpine and Arctic Research Program (HAARP), Department of Geology and Geophysics, Texas A&M UniversityCollege Station, TX 77843 JOHN R GIARDINO 1High Alpine and Arctic Research Program (HAARP), Department of Geology and Geophysics, Texas A&M UniversityCollege Station, TX 77843 JOHN D VITEK 1High Alpine and Arctic Research Program (HAARP), Department of Geology and Geophysics, Texas A&M UniversityCollege Station, TX 77843 VISHNU DANGOL 2Department of Geology, Tri-Chandra Campus, Tribhuvan UniversityKatmandu Nepal Publisher: Association of Environmental & Engineering Geologists First Online: 02 Mar 2017 Online ISSN: 1558-9161 Print ISSN: 1078-7275 Copyright © 2010 EEGS Environmental & Engineering Geoscience (2010) 16 (2): 127–142. https://doi.org/10.2113/gseegeosci.16.2.127 Article history First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation NETRA R REGMI, JOHN R GIARDINO, JOHN D VITEK, VISHNU DANGOL; Mapping Landslide Hazards in Western Nepal: Comparing Qualitative and Quantitative Approaches. Environmental & Engineering Geoscience 2010;; 16 (2): 127–142. doi: https://doi.org/10.2113/gseegeosci.16.2.127 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyEnvironmental & Engineering Geoscience Search Advanced Search Abstract Each year dozens of people are killed in Nepal as a result of landslides. To promote safe human occupation of this dynamic landscape, a priori understanding of the geologic circumstances of landslides, and knowledge of the characteristics and locations of landslides are essential. Furthermore, a method of constructing maps of natural hazards is necessary that is simple, efficient, and, above all, accurate. This paper assesses two different methods to identify landslides in western Nepal and demonstrates the capabilities of each technique. Eighty-eight landslides were mapped in the Andhi Khola River watershed in western Nepal. Instability in this area is influenced by joint patterns, rock weathering, shallow soils, and geomorphic, geodynamic, and groundwater conditions. The major triggers of landslides are excessive rainfalls, road cuts, and undercutting of slope toes by rivers. Two approaches, a qualitative approach and a statistical or quantitative approach, have been developed to identify landslide hazards. The qualitative map of hazards classified 23 percent of the area as high hazard, 22 percent as medium hazard, and 55 percent as low hazard. The statistical map of hazards classified 10 percent of the area as high hazard, 70 percent as medium hazard, and 20 percent as low hazard. The prediction accuracy of the statistical hazard map is better than that of the qualitative hazard map. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.