Seismic signature of mudflow tremor resulted from Brumadinho (Brazil) tailings dam failure

Yawar Hussain; Omar Hamza; Xinghui Huang; André Carlos Silva; Cristobal Condori Quispe; Rogério Uagoda; André Luís Brasil Cavalcante

doi:10.1590/0370-44672019730040

Seismic signature of mudflow tremor resulted from Brumadinho (Brazil) tailings dam failure

Yawar Hussain, Omar Hamza, Xinghui Huang, André Carlos Silva, Cristobal Condori Quispe, Rogério Uagoda, André Luís Brasil Cavalcante

Departamento Académico de Geología y Geofísica

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	421-424
Number of pages	4
Journal	Revista Escola de Minas
Volume	73
Issue number	3
DOIs	https://doi.org/10.1590/0370-44672019730040
State	Published - 1 Jul 2020

Bibliographical note

Funding Information:
The authors would like to thank Dr. Marcelo Bianchi (University of S?o Paulo) for sharing the codes used for the calculation of signal envelope. This study was financed in part by the Coordination for the Improvement of Higher Education Personnel ? Brasil (CAPES) ? Finance Code 001. The authors also acknowledge the support of the National Council for Scientific and Technological Development (CNPq Grant 304721/2017-4), and the University of Bras?lia.

Publisher Copyright:
© 2020, Escola de Minas. All rights reserved.

Keywords

Envelope
Flood early warning system
Spectrogram

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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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AU - Hamza, Omar

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AU - Silva, André Carlos

AU - Condori Quispe, Cristobal

AU - Uagoda, Rogério

AU - Cavalcante, André Luís Brasil

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AB - 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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Seismic signature of mudflow tremor resulted from Brumadinho (Brazil) tailings dam failure

Abstract

Bibliographical note

Keywords

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