Report GIRS 2021-11: An Evaluation of Partially Nonergodic PGA Ground-Motion Models for Japanese Megathrust Earthquakes-Supplemental Material

By: Kenneth W. Campbell; Yousef Bozorgnia; Nicolas Kuehn; Nicholas Gregor
DOI: 10.34948/N3PP4M

Abstract: This report provides supplemental material to a journal article by the same authors entitled “An Evaluation of Partially Nonergodic PGA Ground-Motion Models for Japanese Megathrust Earthquakes” published in Earthquake Spectra, a peer-reviewed journal of the Earthquake Engineering Research Institute referred to as CBKG21. The journal article evaluates a series of ground-motion models (GMMs) for Japanese subduction-zone (megathrust) earthquakes that predict the RotD50 horizontal component of peak ground acceleration (PGA) that account for differences in distance metrics and database cutoff distances and whether random-effects event and station terms, differences between tectonic regions (i.e., forearc and backarc), and terms involving rake angle and whether a travel path crosses a volcanic arc are included in the GMM.

(Full Abstract Available in the Report)