In early January, a giant sinkhole formed at an intersection in the West Oak Lane neighborhood of North Philadelphia after a ...

There are two categories of change that create sinkholes. One type is associated with carbonate rock. This is a type of rock ...

Rescuers were searching for a Pennsylvania grandmother who is believed to have fallen into a sinkhole while searching for a lost cat Monday evening. Elizabeth Pollard, 64, apparently fell into a ...

Research has found there is evidence linking sinkholes to climate change, including droughts and floods.