Largescale numerical investigation on the potential of MTL to produce supershear earthquakes

点击翻译按钮获取中文摘要

As planned, we implemented visco plastic model to simulate off-fault damage zone and thereby control the rupture speeds. We derived analytical solutions to reduce the high computational cost associated with plastic models. We verified the implemented models by comparing with the standard engineering benchmarks. The developed numerical schemes were implemented in HPC enhanced environment to simulate large scale models. We simulated both super shear and sub-Rayleigh events on the Palu Koro fault and demonstrated that the visco plastic model reduces the rupture speed closer to the rupture speed observed at the 2018 super shear event of the Palu Koro fault. This is an important step in the model development since it enables to reproduce rupture speeds closer to the observed in nature.