A tremendous deluge overwhelmed portions of South Korea earlier this week as flash flooding swept through major metropolitan areas and left deadly damage in its wake. In the nearby cities of Gwangju and Hwaseong, torrential rainfall triggered deadly landslides. Over 150 hiking paths were closed in Seoul and the Gangwon province as a result of the landslides, and nearly 50 cities and towns were placed under landslide warnings, according to the AP