On the Use of UAVs for Landslide Exposure of Households: La Gloria Neighbourhood, Teziutlán, Puebla

Owing to landslide susceptibility of pyroclastic deposits, coupled with high vulnerability and exposure, the Sierra Norte de Puebla region, in Mexico, is characterised by significant levels of landslide disaster risk. This study aimed at evaluating landslide exposure of households in La Gloria neighbourhood, Teziutlan, Puebla, an area that was severely affected by the disaster of October 1999. The methodological approach comprised three stages: (1) definition of the parameters used for developing the landslide exposure index; (2) aerial survey using a drone; and, (3) elaboration of the landslide exposure map. According to the produced landslide exposure map, 57% of the households are in areas of high level of exposure, whereas 32 and 11% are in moderate and low exposure zones, correspondingly.