Collapse of Lotus Riverside Block 7 Large quantities of earth were removed and dumped in a landfill next to a nearby creek; the weight of the earth caused the river bank to collapse, which, in turn, allowed water to seep into the ground, creating a muddy foundation for the building that toppled." Collapse of Lotus Riverside Block 7 The collapse of Block 7 at Lotus Riverside (a 13-story apartment building) in 2009 is an accident that killed one person. Lotus Riverside () is a residential apartment complex located in Minhang District, Shanghai, China. On June 27, 2009 at 5:30 Am UTC+8, Block 7, one of the
Sinkhole through these volcanic deposits and mechanically washed fine volcanic materials out of them, then progressively eroded and removed coarser materials. Eventually, these underground voids became large enough that their roofs collapsed to create large holes. Some of the largest sinkholes in the world are: Sinkhole A sinkhole, also known as a cenote, sink, sink-hole, swallet, swallow hole, or doline (the different terms for sinkholes are often used interchangeably), is a depression or hole in the ground caused by some form of collapse of the surface layer. Most are caused by karst processes—for example, the chemical dissolution of carbonate rocks or