Abstract

To calculate a physics-based probabilistic hazard curve for a site of interest, we begin with the NSHMP-2002 ERF and identify all ruptures within 200 km of the site of interest. We convert the NSHMP-2002 rupture definition into multiple rupture variations with differing hypocenter location and slip distribution, which results in about 200,000 rupture variations per site. Strain Green Tensors are calculated for the site using the SCEC CVM (v4. 0), and then, using reciprocity, we calculate synthetic seismograms for each rupture variation. Peak intensity measures are then extracted from these synthetics and combined with the original rupture probabilities to produce probabilistic seismic hazard curves for the site. Recent improvements include (1) development of a parallel CVM mesh generator,(2) implementation of an efficient 3D visco-elastic finite difference algorithm,(3) efficient storage and retrieval of SGTs,(4 …

Date

January 1, 1970

Authors

R Graves, S Callaghan, E Deelman, E Field, N Gupta, T Jordan, G Juve, C Kesselman, P Maechling, G Mehta, D Meyers, D Okaya, K Vahi

Journal

AGU Fall Meeting Abstracts

Volume

2007

Pages

S31B-0450