EGU2020-22287, updated on 12 Jun 2020
https://doi.org/10.5194/egusphere-egu2020-22287
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Can we infer the stiffness of the Matterhorn (CH) based on ambient vibrations?

Samuel Weber1, Jan Beutel2, Mauro Häusler3, Paul R. Geimer4, Donat Fäh3, and Jeffrey R. Moore4
Samuel Weber et al.
  • 1Landslide Research Group, Technical University of Munich
  • 2ETHZ, Departement Informationstechnologie und Elektrotechnik
  • 3ETHZ, Schweizerischer Erdbebendienst (SED)
  • 4University of Utah, Department of Geology & Geophysics

Reliable rock slope stability assessment depends on the ability to characterize and quantify stability relevant properties as for example the internal structure of a rock slope. So far, to our knowledge, no study successfully determined the stiffness of a whole mountain. Here, we evaluate the structural characteristics of the Matterhorn (Swiss Alps) based on ambient vibration measurements using three seismometer stations (Nanometrics Trillium Compact 20s). We identified the fundamental resonant mode which consists of polarized horizontal ground motion at the summit of the Matterhorn. Based on that, we aim to infer the stiffness of the Matterhorn by reproducing field data in 3D numerical eigenfrequency simulation with Young's modulus that vary with strain magnitude.

How to cite: Weber, S., Beutel, J., Häusler, M., Geimer, P. R., Fäh, D., and Moore, J. R.: Can we infer the stiffness of the Matterhorn (CH) based on ambient vibrations?, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-22287, https://doi.org/10.5194/egusphere-egu2020-22287, 2020