[1]WANG Xiao-qiang,JIANG Zai-sen,YANG Guo-hua,et al.Study on Characteristics of Crustal Deformation of the Bachu-jiashi MS6.8 Earthquake in Xinjiang Based on GPS Technique[J].Journal of Seismological Research,2009,32(02):175-181.
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Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
32
Number of periods:
2009 02
Page number:
175-181
Column:
Public date:
2009-02-23
- Title:
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Study on Characteristics of Crustal Deformation of the Bachu-jiashi MS6.8 Earthquake in Xinjiang Based on GPS Technique
- Author(s):
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WANG Xiao-qiang1; JIANG Zai-sen2; YANG Guo-hua3; LI Jie1; YANG Shao-min4
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(1.Earthquake Administration of Xinjiang Uygur Autonomous Region,Urumqi 830011,Xinjiang,China)(2.Institute of Earthquake Prediction,CEA,Beijing 100036,China)(3.First Crust Deformation Monitoring and Application Center,CEA,Tianjin 300180,China)(4.Institute of Seismology,CEA,Wuhan 430071,Hubei,China)
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- Keywords:
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Crustal motion; GPS; shear strain; Bachu-Jiashi MS6.8 earthquake
- CLC:
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P315.72+5
- DOI:
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- Abstract:
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We discussed the characteristics of crustal deformation before and after the MS6.8 BaChu-JiaShi earthquake,using multiple mobile GPS observation results and continuous observation results in WuShi、Taxkorgan GPS stations.We believe that each point near the epicenter moves to the NNW or NNE direction with the velocity of 15-20mm before the earthquake,which engendering high shear strain concentration area in the epicenter and adjacent area.However,the moving velocity of each point near the epicenter decrease to several millimeters after the earthquake and high shear strain concentration area disappears.At the same time,the time series of Wushi、Taxkorgan GPS continuous observation station appear wide-range sudden jump 2-3 months before the earthquake.