GNSS deformation characteristics of North China in the past two decades

Based on the Global Navigation Satellite System (GNSS) velocity in North China from 1999 to 2018, the deformation parameters, such as the strain rate, the velocity profiles, and the fault slip rates, are analyzed. The principal conclusions are as follows: 1) the GNSS results during 1999–2007 can eff...

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Autores principales:	Yanqiang Wu, Layue Li, Changyun Chen, Hongbao Liang, Nannan Guo, Yuan Li
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2021
Materias:	Crustal deformation GNSS strain rate field Profile analysis Fault slip rate Geodesy QB275-343 Geophysics. Cosmic physics QC801-809
Acceso en línea:	https://doaj.org/article/2246d5fd773a4f019dd9165e3a018d2e
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spelling	oai:doaj.org-article:2246d5fd773a4f019dd9165e3a018d2e2021-11-18T04:46:15ZGNSS deformation characteristics of North China in the past two decades1674-984710.1016/j.geog.2021.08.004https://doaj.org/article/2246d5fd773a4f019dd9165e3a018d2e2021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1674984721000719https://doaj.org/toc/1674-9847Based on the Global Navigation Satellite System (GNSS) velocity in North China from 1999 to 2018, the deformation parameters, such as the strain rate, the velocity profiles, and the fault slip rates, are analyzed. The principal conclusions are as follows: 1) the GNSS results during 1999–2007 can effectively reflect the deformation characteristics of North China, and the strain rate shows SEE tensile feature in the Shanxi seismic zone with a maximum value of 0.7 × 10−8/yr. Meanwhile, the deformation is characterized by left-lateral features in the Yinshan seismic zone and Zhangjiakou-Bohai seismic zone with a maximum shear strain rate of 0.7 × 10−8/yr. 2) In the period of 1999–2007, the GNSS velocity profiles show that the deformation is mainly distributed in a range of 100-km width crossing the Yinshan seismic zone and the middle section of the Zhangjiakou-Bohai seismic zone, and 50-km width crossing the Zhangjiakou-Bohai seismic zone near the Bohai Bay. 3) The deformation response to the 2011 Japan MW9.0 earthquake shows a significant difference between the middle and east sections of the Zhangjiakou-Bohai seismic zone, and the deformation loading rate decreased from 3.3 mm/yr in 1999–2007 to 2.6 mm/yr and 0.9 mm/yr in the 2013–2018 period for above two sections respectively. Furthermore, the fault slip rates inverted from GNSS measurements show a similar dynamic adjustment process, reflecting the weak impact of the Japan MW9.0 earthquake on the deformation around the central section of the Zhangjiakou-Bohai seismic zone. 4) From the results of GNSS strain rate, velocity profile and fault slip rate, we suggest that the potential of the strong earthquake should be high in the Yinshan seismic zone and the middle section of the Zhangjiakou-Bohai fault zone.Yanqiang WuLayue LiChangyun ChenHongbao LiangNannan GuoYuan LiKeAi Communications Co., Ltd.articleCrustal deformationGNSS strain rate fieldProfile analysisFault slip rateGeodesyQB275-343Geophysics. Cosmic physicsQC801-809ENGeodesy and Geodynamics, Vol 12, Iss 6, Pp 392-398 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Crustal deformation GNSS strain rate field Profile analysis Fault slip rate Geodesy QB275-343 Geophysics. Cosmic physics QC801-809
spellingShingle	Crustal deformation GNSS strain rate field Profile analysis Fault slip rate Geodesy QB275-343 Geophysics. Cosmic physics QC801-809 Yanqiang Wu Layue Li Changyun Chen Hongbao Liang Nannan Guo Yuan Li GNSS deformation characteristics of North China in the past two decades
description	Based on the Global Navigation Satellite System (GNSS) velocity in North China from 1999 to 2018, the deformation parameters, such as the strain rate, the velocity profiles, and the fault slip rates, are analyzed. The principal conclusions are as follows: 1) the GNSS results during 1999–2007 can effectively reflect the deformation characteristics of North China, and the strain rate shows SEE tensile feature in the Shanxi seismic zone with a maximum value of 0.7 × 10−8/yr. Meanwhile, the deformation is characterized by left-lateral features in the Yinshan seismic zone and Zhangjiakou-Bohai seismic zone with a maximum shear strain rate of 0.7 × 10−8/yr. 2) In the period of 1999–2007, the GNSS velocity profiles show that the deformation is mainly distributed in a range of 100-km width crossing the Yinshan seismic zone and the middle section of the Zhangjiakou-Bohai seismic zone, and 50-km width crossing the Zhangjiakou-Bohai seismic zone near the Bohai Bay. 3) The deformation response to the 2011 Japan MW9.0 earthquake shows a significant difference between the middle and east sections of the Zhangjiakou-Bohai seismic zone, and the deformation loading rate decreased from 3.3 mm/yr in 1999–2007 to 2.6 mm/yr and 0.9 mm/yr in the 2013–2018 period for above two sections respectively. Furthermore, the fault slip rates inverted from GNSS measurements show a similar dynamic adjustment process, reflecting the weak impact of the Japan MW9.0 earthquake on the deformation around the central section of the Zhangjiakou-Bohai seismic zone. 4) From the results of GNSS strain rate, velocity profile and fault slip rate, we suggest that the potential of the strong earthquake should be high in the Yinshan seismic zone and the middle section of the Zhangjiakou-Bohai fault zone.
format	article
author	Yanqiang Wu Layue Li Changyun Chen Hongbao Liang Nannan Guo Yuan Li
author_facet	Yanqiang Wu Layue Li Changyun Chen Hongbao Liang Nannan Guo Yuan Li
author_sort	Yanqiang Wu
title	GNSS deformation characteristics of North China in the past two decades
title_short	GNSS deformation characteristics of North China in the past two decades
title_full	GNSS deformation characteristics of North China in the past two decades
title_fullStr	GNSS deformation characteristics of North China in the past two decades
title_full_unstemmed	GNSS deformation characteristics of North China in the past two decades
title_sort	gnss deformation characteristics of north china in the past two decades
publisher	KeAi Communications Co., Ltd.
publishDate	2021
url	https://doaj.org/article/2246d5fd773a4f019dd9165e3a018d2e
work_keys_str_mv	AT yanqiangwu gnssdeformationcharacteristicsofnorthchinainthepasttwodecades AT layueli gnssdeformationcharacteristicsofnorthchinainthepasttwodecades AT changyunchen gnssdeformationcharacteristicsofnorthchinainthepasttwodecades AT hongbaoliang gnssdeformationcharacteristicsofnorthchinainthepasttwodecades AT nannanguo gnssdeformationcharacteristicsofnorthchinainthepasttwodecades AT yuanli gnssdeformationcharacteristicsofnorthchinainthepasttwodecades
_version_	1718425025688633344

GNSS deformation characteristics of North China in the past two decades

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