More like a sidefall (ba dum tsssssorry).

According to the Associated Press, the man and woman seen here were rescued and sustained only minor injuries, which I mention so you know exactly how guilty to feel for chuckling (after gasping in horror the first time): not too much. The two were getting off a bus in the South Korean capital of Seoul near a major construction site before taking a much shorter walk than expected. Apparently, sinkholes are a growing and very scary problem in the 10-million-person metropolis, and some link it to the proliferation of skyscrapers and other mega construction projects.

Sources: Associated Press | Digg | Gizmodo