Broadband dynamic rupture modeling (5 Hz) of the 2016 Amatrice, Central Italy, earthquake, based on the best of 1 million models visited in a Bayesian dynamic strong motion source inversion (1 Hz, Gallovic et al., 2019 a,b).
High frequencies are enhanced by fractal fault roughness, frictional heterogeneity, viscoelasticity and topography of the 2016 Mw 6.2 Amatrice, Italy earthquake. Taufiqurrahman et al., GRL, 2022.

MP-PSHA - Towards Physics-based Probabilistic Seismic Hazard Analysis (TA2-541-11)

Host Institution:

Ludwig-Maximilians-Universität München (LMU), Germany

Description:

The workflow “Ch-MP-PSHA” optimized within the ChEESE CoE, offers high-resolution HPC-simulations to inform physics-based PSHA (Probabilistic Seismic Hazard Analysis). It allows the realization of earthquake shaking and dynamic rupture scenarios with unprecedented resolution and sufficient ensemble size to allow for sensitivity analysis and uncertainty quantification (e.g., coupling to UM-BRIDGE). The MP-Ch-PSHA Workflow combines SeisSol and the open-source framework OpenQuake to produce ground motion characteristics, complementing operational/empirical ground motion models. 

The infrastructure offers physical access to the workflow for physics-based ground motion modeling with SeisSol toward physics-based PSHA  based on example cases in Iceland and Central Italy that can be adjusted to new study regions.

Data: Datasets for training and testing.

Target community/Users:

Computational seismologists of all levels (beginners to experts) and interdisciplinary researchers, e.g., from tsunami, geodynamics, or engineering communities, who are interested in linking codes.

Community Standards:

HDF5, NetCDF

More information:

Contact person

Iris Christadler (iris.christadlerlmu.de)