QGIS geoprocessing model to simplify first level seismic microzonation analysis

The scope of this work is to contribute to the creation of a methodology for processing topographical, geological, geophysical and geo-technical data aimed at level 1 seismic microzonation map drafting, through the use of open source tools. The Graphical Modeler tool integrated in the latest version of QGIS (2.8.1 as of writing) has been used for the creation of a simple geoprocessing model. This tool is useful to automate one of the analysis commonly performed for the creation of level 1 seismic microzonation maps, in particular to identify unstable zones as polygon features.