Development of a compact low-power-consumption strong motion observation system and investigation of the deep ground structures by using seismic interferometry

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Our results of this study are summarized as follows: (1) We developed a compact low-power-consumption strong motion observation system, (2) We conducted temporal seismic observations at 11 sites in the northeastern Kanto Basin, (3) We detected temporal seismic velocity changes at shallow depths by seismic interferometry of coda waves from local earthquakes (4) We investigated the deep ground structure of the Kanto Basin by using a seismic interferometry of local earthquake waveforms. Using a velocity structure model proposed in this study, we successfully explained the observed characteristics of the Love wave excitation at the northern edge of the Kanto Basin.