Brumadinho dam collapse could have been predicted weeks in advance – study – by Valentina Ruiz Leotaud ( – January 24, 2021)

The dam collapse at Vale’s (NYSE: VALE) Córrego do Feijão mining complex in Brazil, which killed almost 300 people two years ago, could have been foreseen with the right monitoring technology.

This is according to a recent study by researchers at the University of Nottingham and Durham University, who collaborated with Terra Motion and discovered that by applying satellite radar imaging InSAR to check for small ground movements in and around dams, it is possible to predict a dam burst.

“Our ISBAS InSAR results revealed that different areas of the dam were moving at different rates and some of these were seen to accelerate suddenly during the two months preceding the collapse,” Stephen Grebby, lead author of the study, said in a media statement.

“Despite the dam being monitored by the mining company using standard techniques with no apparent warning raised, our analyses of the precursory movement indicate the timing of the collapse was foreseeable.”

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