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Massive Sinkhole In An Australian Couple's Backyard

Massive Sinkhole

This massive sinkhole opened up in an Australian couple's backyard. It grew to 26 feet wide in just a few hours. The sinkhole quickly filled with turbulent water as it grew. Experts think it might have been caused by a coal mine under their property. While human activities like mining commonly cause sinkholes by compromising the integrity of the ground. If rainwater seeps into the ground with nowhere to drain, it can start to build up underground, eating away at the dirt and rock. The hole grows until one day the dirt above it sinks. Luckily, experts say the couple's home is safe from this giant sinkhole.