[SSS16-P19] Seismic interferometry imaging of subsurface structure in the southernmost area of Southern Japanese Alps
Keywords:seismic array observation, Seismic interferometry imaging, reflection depth profile
Some clear, coherent reflectors were imaged at the depth of 10 km and 20 km in theS-wave reflection depth profile. These reflectors correspond to the S-wave velocity contrast in the S-wave velocity structure obtained by seismic tomography (Kawasaki, 2015). The reflector at the depth of 20 km shows a good match with the upper boundary of PHS plate estimated by previous studies (Matsu'ura et al., 1991, Hirose et al., 2008, and Kawasaki, 2015). For the reflectors at the depth of 10 km, our current interpretation is a boundary between geological units of accretionary deposits in the crust.