Cars narrowly escape Russian sinkhole
Friday, May 9, 2014, 6:19 PM - Dramatic video out of Russia shows cars trying to navigate unstable terrain.
Motorists in Tyumen, Siberia -- more than 2,500 km east of Moscow -- were forced to drive around a huge sinkhole as it formed on a busy street earlier this week.
Watch as the ground opens up around the 1:27 mark in the video.
According to the video's YouTube description, the event occurred on Thursday morning.
A sinkhole is a depression or hole in the ground that occurs when the Earth's surface collapses into an underground cavern. They are common where underground rock is limestone, carbonate rock, salt beds, or any other type of rock that can be dissolved by groundwater, leading to the development of a cavern.
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Sinkholes typically form without warning and are notoriously hard to predict.