[1]FU Hong,WANG Shao-jin,LONG Xiao-fan,et al.Comparing Focal Mechanisms Calculated by Using Digital Velocity Wave and Simulation Displacement Wave[J].Journal of Seismological Research,2009,32(01):18-24.
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Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
32
Number of periods:
2009 01
Page number:
18-24
Column:
Public date:
2009-01-23
- Title:
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Comparing Focal Mechanisms Calculated by Using Digital Velocity Wave and Simulation Displacement Wave
- Author(s):
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FU Hong; WANG Shao-jin; LONG Xiao-fan; WU Cheng-dong; ZHAO Xiao-yan
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(Earthquake Administration of Yunnan Province,Kunming 650224,Yunnan,China)
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- Keywords:
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digital seismograph; velocity waveform; simulation displacement waveform; amplitude ratio; focal mechanism
- CLC:
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P315.3+3
- DOI:
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- Abstract:
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We analyze 19 earthquakes with ML3-4 in Yunnan recorded by digital velocity seismographs,and find that the shapes of velocity waves are similar to those of simulation displacement waves,that their amplitudes distribute accordantly,and the maximal amplitude ratios(ASV/AP)are also basically equal.So the focal mechanisms calculated by using the amplitude of velocity wave and the amplitude of simulation displacement wave are markedly accordant.When using the maximal amplitude ratio of Pg and Sg to calculate focal mechanism,we think it is feasible directly measuring maximal amplitude of digital velocity wave and thus obtaining amplitude ratio.