Articles | Volume 12, issue 3
Solid Earth, 12, 633–664, 2021
https://doi.org/10.5194/se-12-633-2021
Solid Earth, 12, 633–664, 2021
https://doi.org/10.5194/se-12-633-2021

Research article 16 Mar 2021

Research article | 16 Mar 2021

Physical and mechanical rock properties of a heterogeneous volcano: the case of Mount Unzen, Japan

Jackie E. Kendrick et al.

Model code and software

Young's Modulus for UCS R. Coats https://doi.org/10.5281/zenodo.1287237

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Short summary
The last lava dome eruption of Mount Unzen (Japan) ended in 1995, but ongoing instability means much of the area remains an exclusion zone. The rocks in the lava dome impact its stability; heterogeneity (contrasting properties) and anisotropy (orientation-specific properties) can channel fluids and localise deformation, enhancing the risk of lava dome collapse. We recommend using measured material properties to interpret geophysical signals and to model volcanic systems.