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The purpose of this article was to map the conditioning and triggering factors that generate hazard due to landslides in the municipality of Mayarí, Holguín province. The Methodological Guide for the Study of Hazard, Vulnerability and Risk of Landslides, prepared by the National Risk Management Group in 2012, was used. By observing and interpreting the Digital Model of the soil and reviewing the topographic maps of 1985 of the Cuban Geodesy and Cartography Institute and aerial images obtained from Google Earth, sliding areas were identified. Field work was also useful, taking into account the application of Geographic Information Systems and past events. As a result, the landslide hazard map of the municipality of Mayarí was obtained, at a scale of 1: 25,000, a useful tool for dealing with the landslides and planning the economic and social development of the municipality. [ABSTRACT FROM AUTHOR]

Water erosion is the geodynamic phenomenon that most affects the city of Brazzaville (Congo). A geological engineering mapping of the city was carried out with the objective of generating a map of water erosion hazard that facilitates the territorial ordering. The methodology focused on the processing and interpretation of Landsat and Radar SRTM images. From the geological engineering survey of the city it was made the types of water erosion Map for the diagnosis of the area. Thematic maps and the total hazard map were generated through a GIS. It is concluded that the districts located to the north, northeast and northwest of the city present the highest hazard level to water erosion, associated mainly with a low vegetation cover, sandy soil poor in clay and very erodible and the mountainous relief. [ABSTRACT FROM AUTHOR]

The occurrence of landslides in Moa poses a serious threat to the industry, communities, socio-economic activities and the environment. The objective of this research is to assess and map the risks generated by the occurrence of landslides in the area by applying the Geographic Information Systems (GIS). For a methodological guidance, the guideline dated 2012 prepared by the National Risk Management Group was used to conduct the landslide hazard, vulnerability, risk analysis on the ground. As a result, this work produced a map indicating the overall landslide dangerousness in Moa on a 1:100 000 scale. This map is one more risk management and mitigation tool in the territorial organization. [ABSTRACT FROM AUTHOR]