Using both elasticity and viscoelasticity theory of fault dislocation, this paper studies the characteristics of displacement field near a fault zone due to fault slip, its development and propagation. The variations of -both short baseline and levelling measurements on the ground surface are analysed. From the measured dalta of short baseline and levelling across the Xianshuihe fault in southwestern China, we have inversed the fault slip and its change with time and space during the period between the 1973 Luhuo earthquake of magnitude 7.9 and the 1981 Daofu earthquake of magnitude 6.9, and have estimated the relevant parameters. The main conclusions are as follows:Bight after the Luhuo earthquake, a left-lateral fault creep with a small dip-slip component occurred along the Xianshuihe fault zone in a range of 70 km, which nearly coincided with the surface fracture belt produced by the earthquake. The slip angle φ=-10°and the time function of the slip ΔV=B (1-exp (-t/T)), in which B=11.3 cm and T=3 yrs. Since the middle of 1979, a southeastward propagation of left-lateral fault creep took place in the southeastern part of the above creeping segment, with an average velocity V=150 m/day. The propagation stopped in the northwest of Daofu.Taking into consideration the studies on the fault movements related to the 1976 Tangshan earthquake and the results of large scale friction experiments, the authors have investigated the relation between the Xianshuihe fault movement and the above two strong earthquakes. The results imply that there are two types of fault motion, one is the post-seismic continuously decelerated fault slip in, the case of the Iuhuo earthquake, and the other is the pre-seismic preccusory slip with propagation of fault creep in the ease of the Daofu earthquake. Both characteristics of the fault movements reflect some regularity of pre- and post-seismic fault movements.
运用断层位错的弹性和粘弹性理论，研究了断层滑动引起的断裂带附近位移场的特征及其发展和传播。分析了短基线和水准测量值在地面上的变化。利用西南鲜水河断裂带短基线和水准测量资料，反演了1973年芦火7.9级地震和1981年道府6.9级地震期间的断层滑动及其时空变化，并估算了相关参数。主要结论如下:芦火地震发生后，鲜水河断裂带沿70 km范围内发生了一个具有小倾滑分量的左旋断层蠕变，与地震产生的地表断裂带基本重合。滑移角φ=-10°，滑移时间函数ΔV=B (1-exp (-t/T))，其中B=11.3 cm, T=3年。1979年年中以来，在上述爬行段的东南部发生了左旋断层蠕变的东南向传播，平均速度V=150 m/d。在稻府西北部，繁殖停止。结合1976年唐山大地震的断层运动研究和大尺度摩擦实验结果，探讨了鲜水河断层运动与上述两次强震的关系。结果表明，地震中存在两种类型的断层运动，一种是在火火地震中发生的震后连续减速断层滑动，另一种是在道府地震中发生的地震前断层滑动伴随着断层蠕变的传播。这两种断层运动特征都反映了地震前后断层运动的一定规律性。
{"title":"Case 18: Theoretical Modeling on Characteristics of Fault Creep and Its Propagation Along the Xianshuine Fault in the Interval Between two Strong Earthquakes","authors":"C. Zhang, J. Guo, Xin-sheng Xie, L. Chen","doi":"10.1029/SP032P0088","DOIUrl":"https://doi.org/10.1029/SP032P0088","url":null,"abstract":"Using both elasticity and viscoelasticity theory of fault dislocation, this paper studies the characteristics of displacement field near a fault zone due to fault slip, its development and propagation. The variations of -both short baseline and levelling measurements on the ground surface are analysed. From the measured dalta of short baseline and levelling across the Xianshuihe fault in southwestern China, we have inversed the fault slip and its change with time and space during the period between the 1973 Luhuo earthquake of magnitude 7.9 and the 1981 Daofu earthquake of magnitude 6.9, and have estimated the relevant parameters. The main conclusions are as follows:Bight after the Luhuo earthquake, a left-lateral fault creep with a small dip-slip component occurred along the Xianshuihe fault zone in a range of 70 km, which nearly coincided with the surface fracture belt produced by the earthquake. The slip angle φ=-10°and the time function of the slip ΔV=B (1-exp (-t/T)), in which B=11.3 cm and T=3 yrs. Since the middle of 1979, a southeastward propagation of left-lateral fault creep took place in the southeastern part of the above creeping segment, with an average velocity V=150 m/day. The propagation stopped in the northwest of Daofu.Taking into consideration the studies on the fault movements related to the 1976 Tangshan earthquake and the results of large scale friction experiments, the authors have investigated the relation between the Xianshuihe fault movement and the above two strong earthquakes. The results imply that there are two types of fault motion, one is the post-seismic continuously decelerated fault slip in, the case of the Iuhuo earthquake, and the other is the pre-seismic preccusory slip with propagation of fault creep in the ease of the Daofu earthquake. Both characteristics of the fault movements reflect some regularity of pre- and post-seismic fault movements.","PeriodicalId":35695,"journal":{"name":"Acta Seismologica Sinica","volume":"8 1","pages":"88-90"},"PeriodicalIF":0.0,"publicationDate":"2013-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87780677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-12-15DOI: 10.1007/S11589-008-0562-0
Liang-qian Guo, Yan-xing Li, Guo-Hua Yang, Xin-kang Hu
{"title":"Characteristics of present-day active strain field of Chinese mainland","authors":"Liang-qian Guo, Yan-xing Li, Guo-Hua Yang, Xin-kang Hu","doi":"10.1007/S11589-008-0562-0","DOIUrl":"https://doi.org/10.1007/S11589-008-0562-0","url":null,"abstract":"","PeriodicalId":35695,"journal":{"name":"Acta Seismologica Sinica","volume":"63 1","pages":"562-572"},"PeriodicalIF":0.0,"publicationDate":"2008-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81612338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-12-15DOI: 10.1007/S11589-008-0629-Y
Yan-bin Zhang, Jun Jiang, Ying-chun Liao, Shengqiang Li, T. Zhong
{"title":"Joint observation of long period tremor signals with broadband seismometer, tiltmeter and gravimeter","authors":"Yan-bin Zhang, Jun Jiang, Ying-chun Liao, Shengqiang Li, T. Zhong","doi":"10.1007/S11589-008-0629-Y","DOIUrl":"https://doi.org/10.1007/S11589-008-0629-Y","url":null,"abstract":"","PeriodicalId":35695,"journal":{"name":"Acta Seismologica Sinica","volume":"41 1","pages":"629-635"},"PeriodicalIF":0.0,"publicationDate":"2008-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88593122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-12-15DOI: 10.1007/S11589-008-0598-1
Yongen Cai, Zhiqiang Zhao
{"title":"Modeling the dynamic process of tsunami earthquake by liquid-solid coupling model","authors":"Yongen Cai, Zhiqiang Zhao","doi":"10.1007/S11589-008-0598-1","DOIUrl":"https://doi.org/10.1007/S11589-008-0598-1","url":null,"abstract":"","PeriodicalId":35695,"journal":{"name":"Acta Seismologica Sinica","volume":"6 1","pages":"598-607"},"PeriodicalIF":0.0,"publicationDate":"2008-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79044864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-12-15DOI: 10.1007/S11589-008-0608-3
Yan-heng Li, Bao-ping Shi, J. Zhang
{"title":"A uniform representation in the calculation of seismic radiation efficiency and rupture speed","authors":"Yan-heng Li, Bao-ping Shi, J. Zhang","doi":"10.1007/S11589-008-0608-3","DOIUrl":"https://doi.org/10.1007/S11589-008-0608-3","url":null,"abstract":"","PeriodicalId":35695,"journal":{"name":"Acta Seismologica Sinica","volume":"348 1","pages":"608-617"},"PeriodicalIF":0.0,"publicationDate":"2008-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79712837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-12-15DOI: 10.1007/S11589-008-0573-X
Rui-sha Li, Xiaofeng Cui, G. Diao, Hong-yan Zhang
{"title":"Temporal and spatial variation characteristics of present stress field in the northern area of North China","authors":"Rui-sha Li, Xiaofeng Cui, G. Diao, Hong-yan Zhang","doi":"10.1007/S11589-008-0573-X","DOIUrl":"https://doi.org/10.1007/S11589-008-0573-X","url":null,"abstract":"","PeriodicalId":35695,"journal":{"name":"Acta Seismologica Sinica","volume":"17 1","pages":"573-584"},"PeriodicalIF":0.0,"publicationDate":"2008-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75237944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-12-15DOI: 10.1007/S11589-008-0636-Z
Ya-qin Shi, Xi-jie Feng, Wang-qiang Dai, Jun Ren, Xiao-ni Li, Heng-yue Han
{"title":"Distribution and structural characteristics of the Xi’an Section of the Weihe Fault","authors":"Ya-qin Shi, Xi-jie Feng, Wang-qiang Dai, Jun Ren, Xiao-ni Li, Heng-yue Han","doi":"10.1007/S11589-008-0636-Z","DOIUrl":"https://doi.org/10.1007/S11589-008-0636-Z","url":null,"abstract":"","PeriodicalId":35695,"journal":{"name":"Acta Seismologica Sinica","volume":"21 1","pages":"636-651"},"PeriodicalIF":0.0,"publicationDate":"2008-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87383255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-12-15DOI: 10.1007/S11589-008-0665-7
Wei-ping Lian, Ju Liu, Yan-yan Hou, Xiao-yu Liu, R. Zou, Danny Yang
{"title":"Application of IPv6 and NGN to the information network of earthquake preparedness and disaster mitigation","authors":"Wei-ping Lian, Ju Liu, Yan-yan Hou, Xiao-yu Liu, R. Zou, Danny Yang","doi":"10.1007/S11589-008-0665-7","DOIUrl":"https://doi.org/10.1007/S11589-008-0665-7","url":null,"abstract":"","PeriodicalId":35695,"journal":{"name":"Acta Seismologica Sinica","volume":"24 1","pages":"665-669"},"PeriodicalIF":0.0,"publicationDate":"2008-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87185200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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