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[1]LU Zhen,GUO Quan,LI Ruisha,et al.A Tentative Discussion on the Application of Aided Measuring Line to Remove the Non-tectonic Factors from Cross-fault Deformation Data[J].Journal of Seismological Research,2017,40(02):193-202.

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A Tentative Discussion on the Application of Aided Measuring Line to Remove the Non-tectonic Factors from Cross-fault Deformation Data

Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume: 40 Number of periods: 2017 02 Page number: 193-202 Column: Public date: 2017-04-23

Title:: A Tentative Discussion on the Application of Aided Measuring Line to Remove the Non-tectonic Factors from Cross-fault Deformation Data

Author(s):: LU Zhen¹; GUO Quan²; LI Ruisha¹; ZHANG Xi¹; TANG Hongtao¹; JIA Peng¹; WANG Cuizhi¹; (1. The Second Monitoring and Application Center,CEA,Xi’an 710054,Shaanxi,China)(2. The Institute of Crustal Dynamics,CEA,Beijing 100085,China)

Keywords:: aided measuring line; cross-fault measuring line; spectral subtraction method; non-tectonic factor; anomaly before earthquake

CLC:: P315.725

DOI:: -

Abstract:: This paper applied the aided measuring line of cross-fault site to the cross-fault deformation data processing. In order to remove the non-tectonic influence from cross-fault deformation data and highlight the information of fault activities which is related to the earthquake,we used spectral subtraction to analyze the cross-fault deformation data which are obtained along Xianshuihe fault zone and contain aided measuring line. By the processing of spectral subtraction,the results show that the cross-fault deformation data from most sites are all have obvious anomalies on time-frequency analysis. And the occurrence and the period of those anomalies are all consistent. Through analyzing the seismic activity along the Xianshuihe fault zone,the occurrence time of anomalies support the possibility that the anomalies are related to the increased seismic activities.

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Last Update: 2017-06-10