The images below show satellite imagery before and after the failure with the after image showing the mudflow extending throughout the valley from the tailings dam to the Paraopeba river. The collapse occurred just after noon with the resulting mud flow taking 3 hours to reach the downstream Paraopeba river some 9 km downstream. On the 25 th January 2019, the Brumadinho tailings dam at the Cόrrego do Feijão iron ore mine in Brazil was subject to catastrophic failure releasing 10 million m 3 of mining waste in around 5 minutes resulting in a mudflow wave killing 259 people with a further 11 reported missing. Modelling the Brumadinho Tailings Dam Failure with TUFLOW HPC
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