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Earth, Planets and Space
Fig. 12 | Earth, Planets and Space

Fig. 12

From: Spatio-temporal characteristics of frictional properties on the subducting Pacific Plate off the east of Tohoku district, Japan estimated from stress drops of small earthquakes

Fig. 12

a Waveform of the NS component at the station N.IWEH for the same earthquake as in Fig. 11. b Waveform spectra for the four time windows shown in (a). c Example of a waveform of an M3.5 earthquake that was used for an EGF. Note that the vertical scale is different from that in (a). d Waveform spectra for the four time windows shown in (c). e Deconvolved spectra with the best-fit omega-squared model. The color lines show deconvolved source spectra, that is, (b) divided by (d), for three individual time windows with a resampling of frequency bands. The black broken line indicates the best-fit omega-squared model with corner frequencies of 6.3 and 12.6 Hz for the analyzed and EGF earthquakes, respectively

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