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Earth, Planets and Space
Figure 7 | Earth, Planets and Space

Figure 7

From: Velocity increase in the uppermost oceanic crust of subducting Philippine Sea plate beneath the Kanto region due to dehydration inferred from high-frequency trapped P waves

Figure 7

P wave velocity structure of the modified simulation models. (a) P wave velocity perturbation estimated by a tomography study (Matsubara et al. 2008). (b) Model A1. (c) Model A2. Solid lines in (a) represent the Moho interface, the upper surface of Philippine Sea plate, and the oceanic Moho from the JIVSM layered structure. The depth variations in P wave velocity along the vertical profile X-X′ are shown on the right side of Figure 6b,c. The solid and dashed lines represent the P wave velocity structure around the oceanic crust in the modified model and in the original JIVSM, respectively. The area of the LVA at depths of 30 to 40 km is represented by the blue triangle. The filled triangle represents the seismic station of the 2D simulations. The dotted white rectangle and the black circle are the area and the seismic station for the 3D simulation, respectively. The yellow star is the location of the hypocenter.

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