Catastrophes in Brazil happen ...

Catastrophes in Brazil happen yearly. Nevertheless we know where, how and why they happen. We do have anticipated catastrophes due to unlikely reasons as seismological events in an area which such events are not considered. Other reasons are also known and predictable. Nevertheless, nothing is done to mitigate those risks. As an example, I am attaching a research done by the Minas Gerais federal university study, showing seismological events and the tragedy in Mariana city in 2015. The study includes many papers and anticipated the tragedy of Brumadinho in 2019.