作者
Jorge Macedo, Norman Abrahamson, Chenying Liu
发表日期
2021/2/1
期刊
Bulletin of the Seismological Society of America
卷号
111
期号
1
页码范围
157-172
出版商
GeoScienceWorld
简介
The Pacific Earthquake Engineering Research Center Next Generation Attenuation‐West2 database is used to derive a new conditional ground‐motion model (CGMM) and a set of scenario‐based models for estimating cumulative absolute velocity (CAV) for earthquakes in shallow crustal tectonic settings. Random‐effects regressions were performed to develop the conditional model, with random effects across different earthquakes. The estimate of CAV is conditioned on the estimated peak ground acceleration (PGA), the time averaged shear‐wave velocity in the top 30 m (⁠ V S 30⁠), the earthquake magnitude (⁠ M w⁠), and the rupture distance (⁠ R rup⁠). By combining the conditional CAV model with ground‐motion models (GMM) in shallow crustal earthquake zones for PGA, new scenario‐based models are developed for estimating the median CAV and its standard deviation, directly from an earthquake …
引用总数
20212022202320242957
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