Statistical Characterization of Spatial Transfiguration of Waveforms Recorded in Some Recent Crustal Earthquakes in Japan

Abstract eng:
Up to now, empirical estimation of ground motion has been proposed as an attenuation relation for IM(Intensity Measure) of ground motion, peak intensity or response spectrum generally. The most important thing about this study is that not only intensity characteristics but also temporal characteristics are taken into consideration. Modeling RMS envelopes with some IMs, examining attenuation or augmentation relations by regression analysis with simple regression formula, studying the correlation structure of the residual among the IMs or frequency bands with principal component analysis, and finally, the perspective that the residuals can be explained with physical quality such as soil conditions or propagation to some extent is shown.

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