
People look on as cars are seen stuck in a sinkhole that occurred in a parking area after heavy rainfall hit Haikou, Hainan province, China, on September 16, 2015.

A giant sinkhole caused by the rains of Tropical Storm Agatha is seen in Guatemala City, on May 31, 2010.

People look at a car hanging on the edge of a caved-in area on a street in Zhenjiang, Jiangsu province, China, December 12, 2014.

An aerial view shows the debris of a residential building and a destroyed road in the village of Nachterstedt, Germany, on July 18, 2009.

Workers stand around a sinkhole in the middle of a street in Beijing, February 16, 2014.

Concrete is poured into a 15-foot wide sinkhole on the driveway of a house in Walters Ash, southern England, on February 6, 2014.

A giant sinkhole caused by the rains of tropical storm Agatha is seen in Guatemala City, on June 1, 2010.

A construction vehicle lies where it was swallowed by a sinkhole on Saint-Catherine Street in downtown Montreal, Canada, on August 5, 2013.