You run for your life ;)
A sinkhole is formed when the roof of a cave collapses.
Shakehole or Sinkhole - when the collapse extends to the surface. (Not all cave roof collapses disturb the surface above.)
A sinkhole forms.
A large hole formed when a roof of a cave collapses.
A large hole formed when a roof of a cave collapses.
When rock above a cave collapses, a sinkhole is formed.
Caves are underground. They are big long holes underground. Sometimes, for some unknown reason, the roof of the cave can no longer support the weight of the ground above it and the ground collapses down into the cave. The land sinks. It fills the hole. Where there was a cave, there is now solid ground. Where there was land, there is now a big hole. So, you have a sinkhole when the roof of a cave collapses.
Steep-sided depressions that form when the roof of a cave collapses are called sinkholes. They can develop gradually or suddenly, often due to the dissolution of underground rock layers, which weakens the ground above them and leads to a collapse.
sinkhole
another floor
The roof of a cave is referred to as the "ceiling" or "overhang".
When rock above a cave collapses, a sinkhole is formed.