Figure 7
From: Lg wave propagation in the area around Japan: observations and simulations
Lg wave propagation map in the area around Japan. Summary map of the variation in the Lg wave propagation in the area around Japan derived from the inversion of the Lg/Sn ratio. Green marks efficient Lg propagation, and red marks indicate inefficient Lg propagation. Triangles denote major active volcanoes. Black lines denote isodepth contours of the crustal thickness at 10-km intervals, and blue lines correspond to the 1,000-m contour of sea depth.