Earth Surface Dynamics
Earth Surface Dynamics
ESurf
Articles | Volume 13, issue 1
Articles | Volume 13, issue 1
https://doi.org/10.5194/esurf-13-81-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-13-81-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 13, issue 1
Research article
 | 
22 Jan 2025
Research article |  | 22 Jan 2025

Identifying fracture-controlled resonance modes for structural health monitoring: insights from Hunter Canyon Arch (Utah, USA)

Guglielmo Grechi, Jeffrey R. Moore, Molly E. McCreary, Erin K. Jensen, and Salvatore Martino

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Short summary
We investigated the dynamic behavior of a rock arch to understand how fractures influence its stability. Using geophones, we measured its modes of vibration and used numerical modeling to replicate them. We found that higher-order resonance modes are the most sensitive to fractures, indicating their potential as early indicators of structural damage. Therefore, monitoring these higher-order modes could provide a more accurate tool to assess the structural integrity of natural rock landforms.
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