Yasuto Itoh is the Professor of the Graduate School of Science of Osaka Prefecture University. He conducts research into tectonics, stratigraphy and paleomagnetism, and has published about 100 papers in the field of backarc opening processes, deformation mode of active plate margins, quantitative assessment of active faults, paleoenvironment of East Asia and mechanism of sedimentary basin formation. He is a member of the Integrated Research Project for Active Tectonics by the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan.