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Fig. 4. | Earth, Planets and Space

Fig. 4.

From: Seismicity and crustal structure in the vicinity of the southern Itoigawa-Shizuoka Tectonic Line

Fig. 4.

Event distribution, shot locations and grid node distribution used for the tomographic inversion. The X-axis is rotated counterclockwise 17° to the north and the spacing of the grid nodes in the y direction is set to 8 km so that the nodes at y = 8kmand y = -8 km overlap with the 2005 offline temporary seismic station arrays. White circles: Earthquakes scaled according to magnitude. Black inverted triangles: Vibroseis and explosive shot location. Black crosses: X-Y distribution of grid nodes. Nodes are set at depths of 0, 3, 6, 12, 16, 20, 30, 35, 100 and 200 km and Z-axis is assumed positive downwards.

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