SCEC Award Number 12156 View PDF
Proposal Category Collaborative Proposal (Integration and Theory)
Proposal Title A Collaborative Project: Rupture Dynamics, Validation of the Numerical Simulation Method
Investigator(s)
Name Organization
Ruth Harris United States Geological Survey Jean-Paul Ampuero California Institute of Technology Ralph Archuleta University of California, Santa Barbara Michael Barall Invisible Software Benchun Duan Texas A&M University Eric Dunham Stanford University Nadia Lapusta California Institute of Technology Shuo Ma San Diego State University David Oglesby University of California, Riverside Brad Aagaard United States Geological Survey Joe Andrews United States Geological Survey Victor Cruz-Atienza Universidad Nacional Autónoma de México (Mexico) Luis Dalguer Eidgenössische Technische Hochschule Zürich (Switzerland) Steven Day San Diego State University Yoshihiro Kaneko University of California, San Diego Yuko Kase National Institute of Advanced Industrial Science and Technology (Japan) Kim Olsen San Diego State University
Other Participants At least 10 students and postdocs, probably more
SCEC Priorities 3c, 4e, 6b SCEC Groups CS, FARM, DRCV
Report Due Date 03/15/2013 Date Report Submitted N/A
Project Abstract
 This collaborative project included SCEC investigators who participated in the 2012-2013 spontaneous rupture code comparisons, mostly in preparation for the related March 15, 2013 workshop. In late 2012 to early 2013, our group designed then tackled the 3D multi-fault elastic benchmarks, The Problem Versions 22 and 23, fault stepovers, and, The Problems Version 24 and 25, branched faults. The first benchmarks, TPV22 and 23 are elastic and examine the case of a stepover in parallel vertical strike-slip faults. The second two benchmarks, TPV24 and 25, are revisits to the case of the vertical strike-slip branched fault; the goal of these latter two benchmarks was to test if our group could finally have agreement among the codes for this particular type of fault geometry. The codes that ran the fault stepover benchmarks successfully matched each other in the cases where the modelers implemented the assigned grid spacings in their codes. The fault branch results were generally similarly successfully and produced satisfactory agreement among the codes that implemented the requested parameters.
Intellectual Merit This project is a world-leading exercise for scientists who conduct dynamic rupture simulations of earthquakes and wish to test if their computer codes are working o.k.
Broader Impacts This project is a world-leading exercise for scientists who conduct dynamic rupture simulations of earthquakes and wish to test if their computer codes are working o.k. We are aiming for engineering implementation if our results are found satisfactory, and also general scientific advancement through the discussions that our group conducts. We invite all interested parties, including students world-wide, postdocs, etc. We are the training ground for students and postdocs who are new to our field.
Exemplary Figure Any of the report's figures are fine to use.