Cyber-PSHA - Probabilistic Seismic Hazard Analysis (TA2-541-9)


Not open in the 1st call.


1. Host Institution:

Physical, remote and HPC resources: Ludwig-Maximilians-Universität München (LMU), Germany

2. Description

CyberShake is a high-performance computing (HPC) platform to facilitate Physics-Based Probabilistic Seismic Hazard Analysis (PB-PSHA) by computing a large set of earthquake synthetic ground-motion time histories from kinematic rupture scenarios on three- dimensional finite faults. Cybershake was developed to perform PSHA studies for Southern California by the SCEC (Southern California Earthquake Center).

This service aims at enabling physics-based PSHA with Cybershake for other regions of interest. Candidate institutions can propose their own use cases, i.e. regions of interest, for hazard assessment based on the feasibility and relevance of a physics-based study. BSC will offer assistance in implementing and running CyberShake on their HPC facilities to the selected proposals. The host institutions plan to provide the service with two hybrid training sessions at their HPC facilities and 6 additional months of online training.

The Cyber-Ch-PSHA Workflow, which SCEC developed, generates spectral intensity metrics for a given earthquake rupture forecast model, using a 3D physics-based seismic modeling engine. The UnifiedCSWFlow workflow manager automates several parts of a CyberShake run. CyberShake V.15.4 relies on an Anelastic Wave Propagation (AWP) open-source numerical engine.

BSC has installed CyberShake V.15.4 in its HPC facilities, together with the UnifiedCSWflow to manage the workflows, and has the experience from the RI ChEESE-1 (with the collaboration of SDSU, USC, IMO and LMU) in implementing a use case for Southern Iceland.

3. Services offered

The service will be based on transnational visits and online assistance, where candidates can provide their own use cases where physics-based PSHA may provide new insights on earthquake risk. The host will assist in preparing the inputs and running Cybershake for the proposed use cases. The hosts will also provide support and training in basic HPC.

4. Modality of access

  1. A maximum of 1 access of 1 week of in-person plus 1 week of remote access to LMU. TA grants will cover the costs for travel and subsistence.
  2. Access, in total, to maximum 4.5 million core-hours computing time on the MareNostrum supercomputer at BSC.

5. Support

Personalized training and support for the definition of the scientific problem, settings of the simulation cases, HPC run of data analysis and elaborations, dissemination of products (e.g., scientific reports, papers), uptake of the simulation results on the Simulation Data Lake at CINECA. HPC budget is offered to perform the simulations.

6. Additional information

Target community/Users:

Researchers with previous experience in PSHA.

Community Standards:


More information:

7. Contact person

Iris Christadler (