Fig. 2From: Upper boundaries of the Pacific and Philippine Sea plates near the triple junction off the Boso Peninsula deduced from ocean-bottom seismic observationsModels for hypocenter determination. a One-dimensional velocity model JMA2001 (Ueno et al. 2002) used for hypocenter determination. b Three-dimensional model used for hypocenter determination. The configuration of the upper boundary of the PAC was obtained from Nakajima and Hasegawa (2006) and Nakajima et al. (2009). The section is along 35.4°NBack to article page