Host-region parameters for an adjustable model for crustal earthquakes to facilitate the implementation of the backbone approach to building ground-motion logic trees in probabilistic seismic hazard analysis

The backbone approach to constructing a ground-motion logic tree for probabilistic seismic hazard analysis (PSHA) can address shortcomings in the traditional of populating branches with multiple existing, or potentially modified, models (GMMs) by rendering more transparent relationship between branch weights and resulting distribution predicted accelerations. To capture epistemic uncertainty tractable manner, there are benefits building through application successive adjustments differences source, path, site characteristics host region selected GMM target which PSHA is being conducted. implementation this facilitated selecting that amenable such host-to-target individual characteristics. NGA-West2 Chiou Youngs (CY14) has been identified as highly adaptable model crustal seismicity well suited adjustments. Rather than using generic assumed appropriate region, final suite adjusted GMMs will be better constrained if host-region parameters defined specifically on basis their compatibility CY14 GMM. end, making use recently developed shear-wave velocity profile consistent CY14, we present an inversion estimate key source path parameters, namely stress parameter anelastic attenuation. With these outputs, effort any dealing focused primarily estimation target-region associated uncertainties. procedure also adapted different constraints might relevant.