Intensity Parameters and Physical Damage in Buildings Due to the Mass Movements Occurred between 3 and 5 November 2019, in Jericó, Antioquia, Colombia

Between 3 and 5 November 2019, mass movements occurred in Jericó, Antioquia, Colombia. Fortunately, no fatalities were reported during the events; however, five houses collapsed, two houses had damaged facade walls, and one power pole collapsed. Based on this, an analytical, probabilistic methodology is used to quantify the hazard intensity that occurred and affected the buildings. Initially, a technical description of the buildings and the damage caused is made. Three critical events are detected for hazard analysis, i.e. two related to landslides and one to debris flow. The hazard intensity is then quantified by determining the probabilistic parameters of velocity, dynamic thrust, momentum flux and overturning moment of the flow that caused damage to the different structures. These data are contrasted with the damage state thresholds for the overall behaviour of structures available in the literature. A structural fragility model in the out-of-plane direction in unreinforced masonry infill walls is used to obtain local complete damage thresholds. In addition, a complete damage threshold is calculated for the power pole. This study provides additional data that can strengthen knowledge related to the assessment of infrastructure risks associated with mass movements.