NGA-West2 Featured in Special Edition of Earthquake Spectra

PEER’s NGA-West2 project is featured as the theme of the special August 2014 edition of Earthquake Spectra. The issue is available in print and online at

NGA-West2 produced substantial new earthquake ground motion data to guide the development of state-of-the-art models for ground motion prediction applicable to active crustal regions, such as California. The special issue of Earthquake Spectra presents a series of papers describing the comprehensive databases and the prediction models, as well as several additional critical issues related to the development or implementation of the models. These include modeling of directivity and directionality, scaling of pseudo-spectral accelerations for different levels of oscillator damping, evaluation of aftershock vs. main shock ground motions, treatment of epistemic uncertainties, applications of the models in USGS national hazard maps, and evaluation of site effects.

NGA-West2, a multidisciplinary research project, was funded by the California Earthquake Authority, California Department of Transportation, and Pacific Gas & Electric Company.

More information on NGA-West2.