S. Korea's first tsunami floodgates start operation stocking 0 217 2022.07.17 12:44 https://youtu.be/CIhq1GMRcM0 + 13 '지진해일 피해 막는다' 국내 첫 해일 침수 방지시설 가동 Between South Korea and Japan is the East Sea, at its narrowest, ...