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arXiv · 1812.05355

Co-detection of micro seismic activity as early warning of gravitational slope failure

Jerome Faillettaz·Martin Funk·Jan Beutel·Andreas Vieli
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Abstract

We developed a new strategy for Disaster Risk Reduction for gravitational slope failure: We propose a simple method for real-time early warning of gravity-driven failures that considers and exploits both the heterogeneity of natural media and characteristics of acoustic emissions attenuation. This method capitalizes on co-detection of elastic waves emanating from micro-cracks by a network of multiple and spatially distributed sensors. Event co-detection is considered as surrogate for large event size with more frequent co-detected events marking imminence of catastrophic failure. In this study we apply this method to a steep rock glacier / debris slope and demonstrate the potential of this simple strategy for real world cases, i.e. at slope scale. This low cost, robust and autonomous system provides a well adapted alternative/complementary solution for Early Warning Systems.

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BibTeXRIS

Jerome Faillettaz, Martin Funk, Jan Beutel, Andreas Vieli. 2018-12-13. Co-detection of micro seismic activity as early warning of gravitational slope failure. https://arxiv.org/abs/1812.05355

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