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首页> 外文期刊>Seismological research letters >gCAPjoint, A Software Package for Full Moment Tensor Inversion of Moderately Strong Earthquakes with Local and Teleseismic Waveforms
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gCAPjoint, A Software Package for Full Moment Tensor Inversion of Moderately Strong Earthquakes with Local and Teleseismic Waveforms

机译：GCAPJOINT，一个软件包，用于全矩的张于中等强大地震与当地和情感波形的逆转

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摘要

Earthquake moment tensors and focal depths are crucial to assessing seismic hazards and studying active tectonic and volcanic processes. Although less powerful than strong earthquakes (M?7+), moderately strong earthquakes (M?5–6.5) occur more frequently and extensively, which can cause severe damages in populated areas. The inversion of moment tensors is usually affected by insufficient local waveform data (epicentral distance 5°?) in sparse seismic networks. It would be necessary to combine local and teleseismic data (epicentral distance 30°–90°) for a joint inversion. In this study, we present the generalized cut‐and‐paste joint (gCAPjoint) algorithm to jointly invert full moment tensor and centroid depth with local and teleseismic broadband waveforms. To demonstrate the effectiveness and explore the limitations of this algorithm, we perform case studies on three earthquakes with different tectonic settings and source properties. Comparison of our results with global centroid moment tensor and other catalog solutions illustrates that both non‐double‐couple compositions of the focal mechanisms and centroid depths can be reliably recovered for very shallow (?10??km?) earthquakes and intermediate‐depth events with this software package.
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  • 来源
    《Seismological research letters》 |2020年第6期|共13页
  • 作者

    Qipeng Bai; Sidao Ni; Risheng Chu; Zhe Jia;

  • 作者单位

    School of Earth and Space Sciences University of Science and Technology of China;

    State Key Laboratory of Geodesy and Earth’s Dynamics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences;

    State Key Laboratory of Geodesy and Earth’s Dynamics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences;

    Seismological Laboratory California Institute of Technology;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 地震学;
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