A sinkhole is a depression or hole in the ground caused by some form of collapse of the surface layer.

A sinkhole is a depression in the ground that has no natural external surface drainage. Basically, this means that when it rains, all of the water stays inside the sinkhole and typically drains into …

Mar 12, 2025 · Get sinkhole facts in geology. Learn about the different types of sinkholes, how they form, and how to repair or escape from one.

Dec 4, 2024 · A sinkhole is a hole or deep depression in the ground that opens up when layers of certain types of rock – usually limestone, carbonate rock and salt beds – dissolve beneath the …

Mar 9, 2025 · Sinkholes are sudden depressions or holes that appear on the Earth’s surface when the ground collapses. These phenomena can cause significant damage to infrastructure and …

Jul 3, 2024 · A sinkhole is a hole in the ground that forms when water dissolves surface rock. Often, this surface rock is limestone, which is easily eroded, or worn away, by the movement …

Dec 15, 2025 · When the structural integrity of the surface above these areas is compromised, it can collapse, creating in a sinkhole. This natural process is relatively common in areas with …

Natural sinkholes are formed when sub-surface rock dissolves to create underground cavities. They are most often found where the rock below the land surface is limestone, dolomite, …

Dec 22, 2025 · A massive sinkhole has developed in a canal in the English county of Shropshire, trapping two boats in deep mud and prompting emergency services to declare a “major incident.”

Sinkholes typically form when naturally acidic rainwater erodes underlying bedrock, creating damage beneath the surface. Their formation is most common in easily erodible karst terrains …