NGA-East
 Ground-Motion Characterization Tools
MS Excel, Matblab, Python, R

Silvia Mazzoni
March 2020

Latest Release Date: March 2020

Sponsored by the United States Geological Survey (USGS)

The NGA-East Ground-Motion Models found in the PEER report (2018/08 - Central and Eastern North America Ground-Motion Characterization - NGA-East Final Report, by Christine Goulet, Yousef Bozorgnia, Norman Abrahamson, Nicolas Kuehn, Linda Al Atik, Robert Youngs, and Robert Graves") have been implemented and QA'd in a series of platforms: Excel, Matlab, Python and R.

All ground-motion tools compute the Weighted Average model for both the median and sigma. Both Ergodic and Single-Station sigmas can be computed. In addition the Excel tool computes the individual models (17 models for the median, two models for sigma).

NOTE: All of the tools compute the values for the reference Vs30=3000 m/sec, and for 5% damping.

 
 

Instructional Videos