In early January, a giant sinkhole formed at an intersection in the West Oak Lane neighborhood of North Philadelphia after a ...
Add Yahoo as a preferred source to see more of our stories on Google. Sinkholes form when underground rock dissolves or sediment washes away and the surface collapses. Luis Diaz Devesa/Moment ...
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What is a sinkhole and why do they happen?
A huge sinkhole that swallowed parts of a high street in Surrey could mean residents are unable to return to their homes for months. People living in 30 properties in the village of Godstone were ...
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