About YAMADA NOBUYUKI
About YAMANAKA HIROAKI
About MOTOKI KENTARO
About S wave (seismic wave)
About velocity
About ground
About Fukuoka prefecture
About S-wave velocity structure
About surface subsoil
About Fukuoka City
About Seismic wave propagation
About 福岡
About 天神地区
About 表層地盤
About S波速度構造