Strong motion observations and recordings from the great Wenchuan Earthquake

作     者：Li Xiaojun Zhou Zhenghua Yu Haiyin Wen Ruizhi Lu Dawei Huang Moh Zhou Yongnian Cu Jianwen 

作者机构：Institute of Engineering Mechanics China Earthquake Administration Harbin 150080 China National Earthquake Infrastructure Service Beijing China California Geological Survey Sacramento USA Yunnan Provincial Earthquake Administration Kunming China 

出 版 物：《Earthquake Engineering and Engineering Vibration》 (地震工程与工程振动（英文刊）)

年 卷 期：2008年第7卷第3期

页      面：235-246页

核心收录：

学科分类：070801[理学-固体地球物理学] 07[理学] 0818[工学-地质资源与地质工程] 0708[理学-地球物理学] 0815[工学-水利工程] 0813[工学-建筑学] 0802[工学-机械工程] 0814[工学-土木工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：NSFC Under Grant No. 90715038 MOST of China Under Grant No. 2006BAC13B02 

主　　题：Wenchuan Earthquake strong motion observation network mobile observation observation array strong motion record PGA 

摘      要：The National Strong Motion Observation Network System （NSMONS） of China is briefly introduced in this paper. The NSMONS consists of permanent free-field stations, special observation arrays, mobile observatories and a network management system. During the Wenchuan Earthquake, over 1,400 components of acceleration records were obtained from 460 permanent free-field stations and three arrays for topographical effect and structural response observation in the network system from the main shock, and over 20,000 components of acceleration records from strong aftershocks occurred before August 1, 2008 were also obtained by permanent free-field stations of the NSMONS and 59 mobile instruments quickly deployed after the main shock. The strong motion recordings from the main shock and strong aftershocks are summarized in this paper. In the ground motion recordings, there are over 560 components with peak ground acceleration （PGA） over 10 Gal, the largest being 957.7 Gal. The largest PGA recorded during the aftershock exceeds 300 Gal.