Fig. 8
From: Velocity structure in the crust beneath the Kyushu area
Plan views of the RRT results for (a) P-waves and (b) S-waves at each depth. The velocity perturbations are calculated from the average of the inverted velocity values at each depth, and masking obscures areas of low reliability (see Fig. 6 and the text for details). Red triangles indicate active volcanoes, and circles mark earthquake epicenters for events within 2.5 km of each depth. The depth of each layer is shown at the top of each panel.