Fig. 12From: Shallow volcanic reservoirs and pathways beneath Aso caldera revealed using ambient seismic noise tomographyPhase-velocity maps with individual velocity ranges for six arbitrarily selected periods: a 1.0, b 1.5, c 2.0, d 2.5, e 3.0, and f 4.5 s. The white circles signify BB stations and white triangles signify SP stations. Large circle at the center of the post-caldera central cones is Kusasenrigahama as shown in Fig. 1Back to article page