[01] Samson Twiringire, Faculty of Environmental Studies, University of Lay Adventists of Kigali, Kigali, Rwanda. [02] Vincent Mwine Rubimbura, Faculty of Environmental Studies, University of Lay Adventists of Kigali, Kigali, Rwanda. [03] Ngoga Aristarque, Faculty of Environmental Studies, University of Lay Adventists of Kigali, Kigali, Rwanda. [04] Lamek Nahayo, Faculty of Environmental Studies, University of Lay Adventists of Kigali, Kigali, Rwanda.

Landslide occurrence is at large extent, negatively impacting on poor societies especially those located in disaster prone areas. This study analyzed the residence suitability with regard to the occurrence of landslide in Kamubuga sector of Gakenke district in the Northern Province of Rwanda. The authors used six landslide causal factors: land use and land cover, rainfall, slope, elevation, soil texture and lithology. These factors were collected from the United States Geological Survey (USGS), Rwanda Geoportal and Rwanda Meteorological Agency (RMA). The data on population density and built-up areas were collected from the National Institute of Statistics of Rwanda (NISR). The extraction by mask technique in Spatial Analyst Tools of the Geographic Information System (GIS) produced maps of landslide conditioning factors. Then Math Algebra of GIS differentiated landslide hazard while Microsoft Excel and GIS indicated areas suitable to residence in regard to landslide hazard in Kamubuga sector. The results showed that elevation, slope, rainfall and poor land management are the major causes of landslide occurrence. Rukore, Kamubuga and Kidomo cells were classified within high and very high landslide hazard. Regarding residence analysis, Kamubuga cell occupies large land of 10.2 Km² and is densely populated with 824/Km² but highly prone to landslide. However, Mbatabata cell, second large land (8.4 Km²) is the least densely populated with 584/Km² people and not prone to landslide. Thus, areas densely populated are almost prone to landslide and recognizing this fact would help to minimize losses among people and select the best residence areas. Therefore, local people are suggested to recognize the contribution of land use and land cover (human activities) in landslide occurrence and then act responsibly. Also, relocating people from prone to safe zones would minimize loss on lives and livelihoods as well.

Landslide, Residence, GIS, Kamubuga Sector, Gakenke District

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