Advancements in ground motion attenuation relationship in the Loess Plateau region of China
The attenuation relationship of seismic ground motion is a crucial empirical tool used to estimate the relationship between seismic ground motion and various factors.These factors include earthquake magnitude,distance,and site conditions.Recently,this tool is also called the ground motion prediction equation in China,which is one of the primary methods for estimating seismic ground motion and its influence field.Therefore,it is widely used in seismic zoning and seismic safety evaluation of major engineering sites.Loess is a special soil type that is widely dis-tributed throughout China.In the Loess Plateau of China,which has a complex geological struc-ture,the neotectonic activity is strong and medium-to-strong earthquakes occur frequently.So,the attenuation relationship of seismic motion in this area is unique and complex.Therefore,summarizing the research findings of the ground motion attenuation relationship in the Loess Plateau region of China is significant for promoting seismic research in this area.This paper pro-vides a comprehensive and systematic summary of the research results of Chinese scholars on the attenuation relation of seismic intensity,peak ground acceleration,peak ground velocity,and peak ground displacement in the bedrock and soil sites of the Loess Plateau region.This study also reviews and discusses existing problems and future research directions in the field of ground motion attenuation research in the areas covered with loess.The research results have a signifi-cant reference value for scientific and technological personnel engaged in earthquake engineering research in the Loess Plateau region.
Loess Plateau areaseismic intensityground motionattenuation relationshipbedrocksoil layerresearch process