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Dynamic Variation of Gravity Field before and after Wenchuan M_S8.0 Earthquake

详细信息

责任者：Zhu Yiqing (Second Monitoring Center ; China Earthquake Administration ; Xi’an 710054 ; China) ; Liang Weifeng
刊名：Acta Seismologica Sinica
出版年：2010
卷期：32(6)
关键词：汶川地震2008 ; Wenchuan earthquake 2008 ; 重力场 ; gravity field ; 龙门山断裂带 ; Longmenshan Fault Zone
页码：p.633-640
图表：illus., 21 refs.
分类号：0500
issnNo：ISSN0253-3782
isbnNo：CN11-2021/P

摘要

Based on the data of absolute and relative gravity observations of the national major scientific project China Crustal Movement Observation Network from 1998 to 2008, gravity field in the North-South seismic belt region and its dynamic variations are obtained. The evolution characteristics of regional gravity field and its relationship with the seismic activity before and after the 12 May 2008 Wenchuan M_S8.0 earthquake are studied in the sight of dynamics. The variations of gravity field show spatial and temporal inhomogeneity, at the same time, however, they reveal certain relation associated with the development and occurrence of the earthquake, and associated also with regional tectonic activity.

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