Generally, because the collapse is into a man-made cavity it is called a "collapse" or "subsidence".
Terms like "sink-hole" are reserved for natural features.
It comes from the ground. Very, very deep in the ground. I recommend you to mine in creeper caves to find iron ore.
in a mine or caves
Climb the rope after the ceiling of the mine caves in.
Answer A land mine is an explosive device that is buried in the ground and is detonated when a person or vehicle travels over it. The term "land mine" is used to distinguish from a mine used in the water that explodes upon contact with passing ships. The US dropped mines into the harbor of Hanoi to stop ships from supplying their troops.
in a mine or caves
There will be more caves, holes and tunnels.
mine shafts.
we mine metal in ground
the ss346gh8 land mine
yes austrlia has the best opal mine on earth+++Ah, yes, mines. The questioner asked about caves - and caves do not normally contain gem-stone material.
A mine pit or open pit mine is a land form most clearly associated with mining. This is a large, deep, and often excavated hole in the ground where minerals or metals are extracted.
we mine metal in ground