Seismic signature of mudflow tremor resulted from Brumadinho (Brazil) tailings dam failure
AUTOR(ES)
Hussain, Yawar; Hamza, Omar; Huang, Xinghui; Silva, André Carlos; Condori, Cristobal; Uagoda, Rogério; Cavalcante, André Luís Brasil
FONTE
REM, Int. Eng. J.
DATA DE PUBLICAÇÃO
2020-09
RESUMO
Abstract Mudflow is often associated with seismic activities. The present study applied a seismic based detection of the surface waves generated by the mudflow of Brumadinho dam collapse using records of Brazilian Seismographic Network. The signal envelope and time-frequency spectrograms of the mudflow signals were used in the analysis. As a result, the mudflow signals were successfully detected from the data recorded at a nearby seismic station. The findings of this study provide a good basis for future research to develop a flood early warning system based on cost-effective, remote and contentious seismic monitoring approaches.
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