Fig. 1From: Velocity structure in the crust beneath the Kyushu areaIndex map of Kyushu. Triangles indicate active volcanoes. Thin lines mark active faults, and thick dashed lines mark tectonic lines. FHF, MTL, OKTL and BSG denote the Futagawa-Hinagu Fault, Median Tectonic Line, Oita-Kumamoto Tectonic Line, and Beppu-Shimabara Graben, respectively. HVZ denotes the Hohi Volcanic Zone.Back to article page