气候变化领域集成服务门户(CCPortal): An empirical attenuation model of the peak ground acceleration (PGA) in the near field of a strong earthquake

CCPortal

DOI	10.1007/s11069-020-04332-x
	An empirical attenuation model of the peak ground acceleration (PGA) in the near field of a strong earthquake
	Yao X.; Qi S.; Liu C.; Guo S.; Huang X.; Xu C.; Zheng B.; Zhan Z.; Zou Y.
发表日期	2021
ISSN	0921030X
起始页码	691
结束页码	715
卷号	105 期号:1
英文摘要	Empirical methods are commonly employed to predict the PGA distribution of an earthquake and are widely used. However, current empirical methods assume the seismic source to be a point source, a line source, or a plane source, where the energy is concentrated and released uniformly. An empirical attenuation model of the near-field peak ground acceleration (PGA) was proposed that considers a nonuniform spatial distribution of seismic fault energy and its 3D scale. Then, this model was used to reconstruct the PGA distribution of the 2008 Wenchuan, China, Mw7.9 earthquake based on the data of a seismic fault model and ground acceleration records of the mainshock and aftershocks collected by seismic stations. The predicted PGA values show similar attenuation characteristics to the interpolated map of the PGA recorded by seismic stations. A comparison with the results of a finite-fault model developed by the USGS indicates that the proposed model can provide more details and give a more precise result in the near field. The analysis of landslides triggered by the Wenchuan earthquake demonstrates that the PGA distribution estimated by this model can be used to validate the findings of other researchers. © 2020, Springer Nature B.V.
关键词	Earthquake-induced landslides Empirical attenuation model Near field Peak ground acceleration (PGA)Strong earthquake The 2008 Wenchuan earthquake
英文关键词	aftershock; landslide; model; peak acceleration; seismic attenuation; seismic source; Sichuan earthquake 2008; spatial distribution; strong motion; China
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206688
作者单位	Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Innovation Academy for Earth Science, Chinese Academy of Sciences, Beijing, 100029, China; China Aero Geophysical Survey and Remote Sensing Center for Natural Resources, Beijing, 100083, China; National Institute of Natural Hazards, Ministry of Emergency Management of China, Beijing, 100085, China; China Highway Engineering Consultants Corporation, Beijing, 100089, China
推荐引用方式 GB/T 7714	Yao X.,Qi S.,Liu C.,et al. An empirical attenuation model of the peak ground acceleration (PGA) in the near field of a strong earthquake[J],2021,105(1).
APA	Yao X..,Qi S..,Liu C..,Guo S..,Huang X..,...&Zou Y..(2021).An empirical attenuation model of the peak ground acceleration (PGA) in the near field of a strong earthquake.Natural Hazards,105(1).
MLA	Yao X.,et al."An empirical attenuation model of the peak ground acceleration (PGA) in the near field of a strong earthquake".Natural Hazards 105.1(2021).