文章基本信息

标题：Uncertainty and Spatial Correlation of Earthquake Ground Motion in Taiwan
本地全文：下载
作者：Vladimir Sokolov ; Friedemann Wenzel ; Wen-Yu Jean 等
期刊名称：Terrestrial Atmospheric and Oceanic Sciences
印刷版ISSN：1017-0839
出版年度：2010
卷号：21
期号：6
页码：905-920
DOI：10.3319/TAO.2010.05.03.01(T)
出版社：Chinese Geoscience Union
摘要：In this work we analyzed characteristics of aleatory variability with regard to intra-event and inter-event components in the prediction of peak ground acceleration in Taiwan and the spatial (site-to-site) correlation of ground motion residuals. The characteristics are very important for an assessment of seismic hazard and loss for regionally located building assets (portfolio) and spatially distributed systems (lifelines) and ShakeMap generation. The strong-motion database collected by the TSMIP network in Taiwan, which includes about 4650 records from 66 shallow earthquakes (M L > 4.5, focal depth < 30 km) occurred in 1993 - 2004, was used for this purpose. The results of the analysis show that the ground motion correlation structure is highly dependent on local geology and on peculiarities of the propagation path (azimuth-dependent attenuation). Thus, a single generalized spatial correlation model may not be adequate for all of Taiwan territory or similar large areas.
关键词：Ground motion uncertainty; Spatial correlation; Taiwan;