Preparatory mechanism of Ms8.0 Wenchuan earthquake evidenced by crust-deformation data

被引：0
|
作者：
Bo Wanju
机构：
来源：
Geodesy and Geodynamics | 2011年 / 02期
关键词：
Wenchuan Ms8.0 earthquake; earthquake generation mechanism; deformation; leveling; GPS;
D O I：
暂无
中图分类号：
P315 [地震学];
学科分类号：
070801 ;
摘要：
Some crustal-deformation data related to the Ms8.0 Wenchuan in 2008,was described and a model that is capable of explaining the observed deformation features is presented.The data include:pre-earthquake uplift in an area south of the epicenter obtained by repeated-leveling measurements;pre-earthquake horizontal deformation by GPS observation during two periods in Sichuan-Yunnan area;vertical deformation along a short cross-fault leveling line in the epicenter area;and co-seismic near-field vertical and horizontal crustal-movement data by GPS.The model is basically "elastic-rebound",but involves a zone between two local faults that was squeezed out at the time of earthquake.
引用
收藏
页码：23 / 28
页数：6
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