Gravity variation associated with Wenchuan earthquake in western Sichuan

Based on the data of mobile gravity observation from 1998 to 2008 in western Sichuan, spatial dynamic variation results of regional gravity field are obtained. The relationship between the gravity variation features and Wenchuan Ms8.0 earthquake is systematically analyzed. The results show: 1) Gravi...

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Main Authors: Zhu Yiqing, Liu Fang, Liang Weifeng, Xu Yunma
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2011-02-01
Series:Geodesy and Geodynamics
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1674984715301567
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author Zhu Yiqing
Liu Fang
Liang Weifeng
Xu Yunma
author_facet Zhu Yiqing
Liu Fang
Liang Weifeng
Xu Yunma
author_sort Zhu Yiqing
collection DOAJ
description Based on the data of mobile gravity observation from 1998 to 2008 in western Sichuan, spatial dynamic variation results of regional gravity field are obtained. The relationship between the gravity variation features and Wenchuan Ms8.0 earthquake is systematically analyzed. The results show: 1) Gravity variation is closely related to active fault tectonics, and gravity measurement can better reflect material migration following crustal tectonic activity near active fault. 2) The gravity field appeared a wider range regional gravity variation during Wenchuan earthquake occurrence. The dynamic patterns of gravity field demonstrates the evolution process of gravity field: quasi – homogeneous state—non – homogeneous state—earthquake occurrence.
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spelling doaj.art-a863755cde294f3cb3b5c8eb990b69182022-12-21T22:24:53ZengKeAi Communications Co., Ltd.Geodesy and Geodynamics1674-98472011-02-0121556010.3724/SP.J.1246.2011.00055Gravity variation associated with Wenchuan earthquake in western SichuanZhu YiqingLiu FangLiang WeifengXu YunmaBased on the data of mobile gravity observation from 1998 to 2008 in western Sichuan, spatial dynamic variation results of regional gravity field are obtained. The relationship between the gravity variation features and Wenchuan Ms8.0 earthquake is systematically analyzed. The results show: 1) Gravity variation is closely related to active fault tectonics, and gravity measurement can better reflect material migration following crustal tectonic activity near active fault. 2) The gravity field appeared a wider range regional gravity variation during Wenchuan earthquake occurrence. The dynamic patterns of gravity field demonstrates the evolution process of gravity field: quasi – homogeneous state—non – homogeneous state—earthquake occurrence.http://www.sciencedirect.com/science/article/pii/S1674984715301567western Sichuangravity observationcrustal movementgravity variationWenchuan earthquake
spellingShingle Zhu Yiqing
Liu Fang
Liang Weifeng
Xu Yunma
Gravity variation associated with Wenchuan earthquake in western Sichuan
Geodesy and Geodynamics
western Sichuan
gravity observation
crustal movement
gravity variation
Wenchuan earthquake
title Gravity variation associated with Wenchuan earthquake in western Sichuan
title_full Gravity variation associated with Wenchuan earthquake in western Sichuan
title_fullStr Gravity variation associated with Wenchuan earthquake in western Sichuan
title_full_unstemmed Gravity variation associated with Wenchuan earthquake in western Sichuan
title_short Gravity variation associated with Wenchuan earthquake in western Sichuan
title_sort gravity variation associated with wenchuan earthquake in western sichuan
topic western Sichuan
gravity observation
crustal movement
gravity variation
Wenchuan earthquake
url http://www.sciencedirect.com/science/article/pii/S1674984715301567
work_keys_str_mv AT zhuyiqing gravityvariationassociatedwithwenchuanearthquakeinwesternsichuan
AT liufang gravityvariationassociatedwithwenchuanearthquakeinwesternsichuan
AT liangweifeng gravityvariationassociatedwithwenchuanearthquakeinwesternsichuan
AT xuyunma gravityvariationassociatedwithwenchuanearthquakeinwesternsichuan