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Zhang Guangcheng, Wu Qingju, Li Yongjian, Pan Jiatie, Zhang Fengxue, Guan Jian. 2013: An investigation on crustal anisotropy of Northeast China using Moho Ps converted phase. Acta Seismologica Sinica, 35(4): 485-497. DOI: 10.3969/j.issn.0253-3782.2013.04.004
Citation: Zhang Guangcheng, Wu Qingju, Li Yongjian, Pan Jiatie, Zhang Fengxue, Guan Jian. 2013: An investigation on crustal anisotropy of Northeast China using Moho Ps converted phase. Acta Seismologica Sinica, 35(4): 485-497. DOI: 10.3969/j.issn.0253-3782.2013.04.004
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An investigation on crustal anisotropy of Northeast China using Moho Ps converted phase

  • 1.

    Institute of Geophysics, China Earthquake Administration, Beijing 100081, China

  • 2.

    Shandong Institute of Earthquake Engineering, Ji’nan 250021, China

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  • Received Date: April 26, 2012
  • Revised Date: September 01, 2012
  • Published Date: June 30, 2013
    Graphical Abstract
    • Abstract
  • Using teleseismic events recorded by 65 broad-band digital seismic stations during June 2009 to June 2011 in Northeast China， we calculated receiver functions by conducting maximum entropy deconvolution in time domain， and obtained the crustal anisotropy parameters by using the improved shear-wave splitting analysis. The result shows that in Northeast China， the dominant direction of fast wave polarity is approximately in NW--SE in this region， and the time delay between the fast and slow waves is 0.15—0.3 seconds. But the fast wave polarity direction is in NE--SW beneath other 7 stations， possibly due to the effect of local complex structure. Through a comparison study we find that the polarization direction of the fast wave is nearly perpendicular to the direction of principal compressive stress， and is approximately the same as the direction of the Eurasian plate movement and the result of SKS/SKKS analysis. It can be concluded that our result has revealed the tensile stress and the anisotropy may come from the middle and lower part of the crust in this region.
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    • References (39)
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