Modeling the Spatial Correlation of Systematic Source Effects in Non-Ergodic Ground Motion Models for the Ridgecrest Area
作者：
Liu, Chenying;Macedo, Jorge
通讯作者：
Liu, CY
作者机构：
Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA.
通讯机构：
Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA.
语种：
英文
关键词：
CALIFORNIA
期刊：
Geotechnical Special Publication
ISSN：
0895-0563
年：
2023
卷：
344
页码：
223-233
会议名称：
Conference on Geo-Risk - Advances in Theory and Innovation in Practice
会议时间：
JUL 23-26, 2023
会议地点：
Arlington, VA
摘要：
The current state of the practice in probabilistic seismic hazard analysis (PSHA) employs ergodic ground motion models (GMMs) to describe the probabilistic distribution of an intensity measure, which assumes that the ground motion variability observed in a global database is the same as the variability in ground motion at a single site-source combination. However, the fast-growing empirical ground motion databases indicate significant regional differences in ground motions due to repeatable and systematic source, path, and site effects. These systematic effects, which are spatially correlated, are not consistent with the ergodic assumption, promoting the transition to non...
