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Fig. 3. | Earth, Planets and Space

Fig. 3.

From: Spatial distribution of earthquakes off the east coast of the Kanto region along the Japan Trench deduced from ocean bottom seismographic observations and their relations with the aftershock sequence of the 2011 off the Pacific coast of Tohoku Earthquake

Fig. 3.

Depth section through a P-wave velocity model on the profile shown in Fig. 1(b) with superimposed hypocenters (red circles) distributed within 15 km in the horizontal direction. Open inverted triangles indicate temporal OBSs for the velocity structural analysis only and solid inverted triangles are our OBSs for both the velocity analysis and hypocenter location. The edge of the PHS seems to be located on between 130 km and 170 km in the horizontal axis.

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