One of the main objectives of ChEESE is to make Pilot Demonstrators available as services that can be exploited by a broader user community. To achieve this goal, we have involved the geophysical community (in coordination and synergy with other pan-European initiatives) and the non-academic stakeholders (industrial partners, observatories, civil protection authorities belonging to the IUB), in the definition of the services and their validation. In particular, the end-users have cooperated in defining the service objectives, the gaps to fill, the relevant scientific/societal questions addressed, the technological bottlenecks.

Six pilots within ChEESE have demonstrated potential service exploitation during “live” exercises, in which target use-cases have been numerically addressed and service functional requirements (e.g., required time-to-solution, spatial/temporal resolution, minimum ensemble size), tested in an operational environment. Computational resources have been pre-allocated on HPC centres on the expected time-slots.

The live exercises have addressed 53 institutions (represented by 99 individuals) from 26 different countries.


Pilot Demonstrator Service Delivered Time-to-Solution HPC Resources Workflow Numerical Engine TRL Achieved
PD1: Urgent seismic simulations Synthetic hake maps of ground motion proxies (Peak Ground Acceleration/Velocity, and others) provided in an Urgent Computing mode (1.5Hz live and 5Hz offline) 30 mins 10 nodes (480 CPU cores) on BSC’s Mare Nostrum 4 UCIS4EQ Salvus TRL 6
PD2: Faster Than Real-Time (FTRT) Tsunami Simulations Tsunami impact map based on multi-scenario simulations (variable seismic sources) for the Spanish Tsunami Early Warning System 1 min 72 nodes (288 NVIDIA V100 GPUs) on CINECA’s Marconi 100 Faster Than Real Time Tsunami Simulations Tsunami-HySEA TRL 8-9
PD5: Physics-Based Probabilistic Seismic Hazard Assessment (PSHA) 3D fully coupled (physics-based) high-resolution (1.5-5 Hz) earthquake and tsunami dynamics < 6 hours 16 nodes (4096 CPU cores) on SuperMuc2   SeisSol, ExaHyPe TRL 6
PD6: Probabilistic Volcanic Hazard Assessment (PVHA) Short-term probabilistic assessment of volcanic tephra hazard/impact over a large-scale domain 3 hours 24 nodes (1152 CPU cores) on BSC’s Mare Nostrum 4 ST_PVHA_CF FALL3D TRL 7
PD8: Probabilistic Tsunami Forecast (PTF) for early warning and rapid post event assessment Rapid probabilistic Post-Event Tsunami Assessment following the 2020, October the 30th, Mw 7.0 Samos-Izmir earthquake. 45 mins 800 nodes (3200 NVIDIA V100 GPUs) on CINECA’s Marconi100 Suite of bash, python/Matlab, C, GMT codes for workflow execution, pre- and post-processing (; on the intranet and users need authorization) Tsunami-HySEA TRL 7-8
PD12: High-resolution volcanic ash dispersal forecast Early probabilistic ash dispersal forecast (“Quantitative Volcanic Ash” service) 25 mins 48 nodes (2304 CPU cores) on BSC’s Mare Nostrum 4 PDAF + FALL3D FALL3D (v8.1) TRL 8-9