Validation of an Empirical Model with Risk Assessment Functionalities to Simulate and Evaluate the Tailings Dam Failure in Brumadinho

The failure of tailings dams causes ecological damage and economic loss can cause casualties. simulation the tailings’ spill path in event dam failures (TDFs) mitigate risk by provision spatial information for disaster prevention preparedness. In order to close gap between basic one-dimensional spill-path routing models complex numerical models, this paper examines an empirical model based on freely available Laharz model. incorporates a tailings-specific planimetric area regression from literature describe extent flows released volume. By providing about affected residents infrastructure, such be used preliminary evaluation. was validated against TDF Brumadinho (2019) reached hit rates over 80%, critical success indices approximately 60% false alarm ratios roughly 30%. latter is particularly evident overestimation lower part flow. assessment identified 120 residents, 117 destroyed buildings (109 reported) several kilometres roads (1.9 km) railway (2.75 km). However, OpenStreetMap-based inherits some uncertainties investigated future.