Georeferencing for mass wasting hazard modeling and zoning in the municipality of Tena, Department of Cundinamarca, Colombia

The zoning of the mass-wasting hazard has taken place mainly from the qualitative point of view, without involving quantitative type tools. Aimed at providing more accuracy to the zoning, a methodological proposal permitting to relate the two components that characterize the hazard (the quantitative and the qualitative) was made. Methodology is based mainly on the use of three tools: geodesy, geostatistic and the Geographic Information Systems (GIS). With geodesy, land periodical measurements are made with the intend of quantifying motion and obtaining a map permitting to visualize its intensity; geostatistic allows to make interpolations in order to know the motion of non measured zones and model it; and the Geographic Information System for integrating the map obtained from geodesy, aimed at visualizing all these variables and thus achieve a better analysis of the mass wasting process. This methodology was put into practice in the municipality of Tena-Colombia.