Abstract

This CME Collaboration proposes to transform probabilistic seismic hazard analysis (PSHA) into a physics-based science by deploying a new cyberfacility" PetaSHA" that can execute PSHA computational pathways and manage data volumes using the nation's petascale computing resources. The objectives of the project have been formulated in terms of three science thrusts:(1) Extend deterministic simulations of strong ground motions to 3 Hz for investigating the upper frequency limit of deterministic ground-motion prediction.(2) Improve the resolution of dynamic rupture simulations by an order of magnitude for investigating the effects of realistic friction laws, geologic heterogeneity, and near-fault stress states on seismic radiation.(3) Compute physics-based PSHA maps and validate them using seismic and paleoseismic data. The investigators will assemble and operate a cyberfacility comprising four …

Date

2006

Authors

Thomas H Jordan, Reagan W Moore, Jean-Bernard Minster, Carl F Kesselman

Journal

NSF Award

Volume

6

Issue

623704

Pages

23704