the scec ground motion simulation validation (gmsv ......sep 11, 2016 · • convened coordination...

EERISeminaronNextGenerationAttenuationModels

The SCEC Ground Motion Simulation Validation

(GMSV) Technical Activity Group (TAG)

2016 Southern California Earthquake Center (SCEC) Annual Meeting – International Workshop on GMSV

Nicolas LucoResearch Structural Engineer @ USGS—Golden, CO

Co-Leader of SCEC GMSV TAG“… to develop and implement, via collaboration between

ground motion modelers and engineering users, testing/rating methodologies for simulated ground motions to be used in engineering applications.”


Early Years of the GMSV TAG

“The SCEC Ground Motion Simulation Validation (GMSV) Technical Activity Group (TAG),” N. Luco (USGS) September 11, 2016


• Proposed by Tom Jordan during 2010 Annual Meeting and mentioned in 2011 SCEC Collaboration Plan (RfP).

• No consensus on testing/rating methodologies, so …

• convened 2011 Planning Workshop for recommendations, …

• requested recommended proposals in 2012-Present Collaboration Plans, and …

• convened Coordination Workshops (2012-2013) and Web Conferences (2013-Present).


2012-2014 GMSV TAG Projects




Burks & Baker (2014), BSSA




Rezaeian et al & Zareian (2015), BSSA




Afshari & Stewart (2016), Eq. Spectra




2015 GMSV TAG Project



Title: Implementation of GMSV Gauntlets on the SCEC Broadband Platform

Co-PIs: Luco & Rezaeian (USGS), Goulet (SCEC), Skarlatoudis & Bayless (AECOM), Maechling & Silva (SCEC)

Tasks:1. Selection of ground motion parameters with

corresponding empirical ground motion models2. Implementation & verification3. Development of simulated-vs.-recorded and

simulated-vs.-modeled comparison figures4. Dissemination workshop with modelers





Max÷Median HorizontalSpectral Acceleration(Burks & Baker, 2014)

Anderson Goodness-of-Fit (2004)

Duration (Afshari& Stewart, 2016)

Time evolution of intensity, frequency, & bandwidth (Rezaeian et al, 2015)





Title: Demonstrations of the Efficacy of the BBP Validation Gauntlets for Building Response Analysis Simulations(a.k.a., Validation of Validation Guantlets)

Co-PIs: Luco & Rezaeian (USGS), Deierlein & Bijelic (Stanford), Zareian (UC-Irvine), Lin (Marquette), Silva & Maechling (SCEC)

Tasks: See Deierlein workshop presentation.


Other 2015-2016 GMSV TAG Projects




Other GMSV-Related SCEC Groups



• Whereas GMSV TAG is primarily focused on validation for use in response history analysis of structural and geotechnical systems, …

• Broadband Platform (BBP) group is primarily focused on simulation and validation for use in developing ground motion models for median spectral acceleration, and …

• Utilization of Ground Motion Simulations (UGMS) committee is primarily focused on use of CyberShakesimulations in developing hazard maps for building codes.


Broadband Platform (BBP) Group



• Christine Goulet• Kim Olsen• Fabio Silva• Jorge Crempien• Ralph J Archuleta• Nicolas Luco• Doug Dreger• Karen Assatourians• Julian Lozos• Robert Graves• Paul Somerville• Mehrdad Hosseini• Steve Day

• John Anderson• Andreas Skarlatoudis• Gail Atkinson• R Takedatsu• Jeff Bayless• Philip Maechling• Song Seok Goo• Arben Pitarka• Sanaz Rezaeian• Brendon Bradley• Tom Jordan• Tran HuynhG

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UGMS Committee



• Norm Abrahamson• John Anderson• Bob Bachman• Jack Baker• Jacobo Bielak• C.B. Crouse• Art Frankel• Rob Graves• Ron Hamburger

• Curt Haselton• John Hooper• Marty Hudson• Charlie Kircher• Marshall Lew• Nicolas Luco• Farzad Naeim• Paul Somerville

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Questions for SCEC5 GMSV TAG



• Continue a mix of collaborative and coordinated projects?

• Pursue external (to SCEC) funding, like previous “SEISM” funding for Baker, Zareian, Stewart and/or BBP Validation Study funding for ground motion modelers?

• Continue separation of overlapping GMSV-related SCEC groups?

the scec ground motion simulation validation (gmsv ......sep 11, 2016 · • convened coordination...

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