Archive: Ground motion model functions

Note: this material has been superseded by this code repository. The material below is provided purely for archival purposes, and will eventually be removed.

Contributors: Jack Baker, James Bronder, Lynne Burks, Luis Ceferino, Reagan Chandramohan, Abhineet Gupta, Yue Hua, Nirmal Jayaram, David Lallemant, Ting Lin, Christophe Loth, Maryia Markhvida, Yoshifumi Yamamoto

As a courtesy, Matlab scripts are provided here for some popular models published in the scientific literature. You are welcome to use these scripts as long as you acknowledge this website as their source (and of course cite the original model publications).

Crustal earthquakes in active seismic regions

• Abrahamson, Silva and Kamai 2014 model
• Boore, Stewart, Seyhan and Atkinson 2014 model
• Campbell and Bozorgnia 2014 model
• Chiou and Youngs 2014 model
• Idriss 2014 model
• Abrahamson and Silva 2008 model (reference document, and a version of the model that omits the constant displacement check)
• Boore and Atkinson 2008 model (reference document, alternate function version written in R)
• Campbell and Bozorgnia 2008 model (reference document)
• Chiou and Youngs 2008 model (reference document)
• Idriss 2008 model (reference document)
• Abrahamson and Silva 1997 model (reference document)
• Abrahamson and Silva 1997 model for vertical Sa (reference document)
• Boore et al. 1997 model (reference document)
• Campbell 1997 model (reference document)
• Campbell 1997 model for vertical Sa (reference document)
• Sadigh et al. 1997 model (reference document)

Other models

Spectral acceleration predictions for other regions

• Atkinson and Boore 2003 model for subduction zone events (reference document)
• Atkinson and Boore 2006 model for Eastern North America (reference document)
• BC Hydro 2016 model for subduction zone events (reference document)
• Shahjouei and Pezeshk 2016 model for Central and Eastern North America (reference document)
• Youngs et al. 1997 model for subduction zone events (reference document)
• Zhao et al. 2006 model for shallow crustal and subduction zone events (reference document)

Prediction models for other intensity measures

• Abrahamson and Silva 1996 model for significant duration (reference document)
• Afshari and Stewart 2016 model for significant duration (reference document)
• Atkinson, Worden and Wald 2014 intensity prediction equation (reference document).

Correlation models

• Baker and Bradley 2017 evaluations of correlations of Sa values and other intensity measures at a single location (reference document)
• Baker and Cornell 2006 model for correlations of Sa values at a single location (reference document).
• Baker and Jayaram 2008 model for correlations of Sa values at a single location (reference document)
• Jayaram and Baker 2009 model for correlations of Sa values at spatially separated locations (reference document)
• Loth and Baker 2013 model for correlations of Sa values with differing periods at spatially separated locations (reference document)
• Markhvida et al 2018 model for correlations of Sa values with differing periods at spatially separated locations (reference document)
• Markhvida et al 2018 code for simulating multi-period Sa values at multiple locations (reference document)