“A sinkhole is a hole that opens up in the ground due to some change in the subsurface.” This simple definition, provided by hydrogeologist Laura Toran, sums up what is so chilling about sinkholes in ...

In early January, a giant sinkhole formed at an intersection in the West Oak Lane neighborhood of North Philadelphia after a water main break. Just two weeks earlier, the city reopened a section of ...

UNITY TOWNSHIP, Pa. — It has been a year since a woman died after falling through a sinkhole and into an old mine behind Monday’s Union Restaurant in Unity Township. Cheryl Koloshinsky lives right ...