A sinkhole is a depression or hole in the ground caused by some form of collapse of the surface layer. The term is sometimes used to refer to doline , enclosed depressions that are also known as shakeholes , and to openings where surface water enters into underground passages known as ponor , swallow hole or swallet .

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 the subsurface. Sinkholes are most common in what geologists call, “karst terrain.”

Jun 9, 2018 · A sinkhole is an area of ground that has no natural external surface drainage--when it rains, the water stays inside the sinkhole and typically drains into the subsurface. Sinkholes can vary from a few feet to hundreds of acres and from less than 1 to more than 100 feet deep.

1 day ago · TOKYO (AP) — A truck that fell into a sinkhole that suddenly opened on a road near Tokyo has captured national attention as attempts to rescue the elderly driver drag on. Residents near the hole ...

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 the subsurface. Sinkholes are most common in what geologists call, “ karst terrain.”

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 with...

Apr 8, 2024 · A sinkhole is basically a hole which appears to suddenly open up in the ground. However, the process that leads to a sinkhole is not so sudden and may have been developing over a long period.

Jul 3, 2024 · A sinkhole is a hole in the ground that forms when water dissolves surface rock. This sinkhole sits in the Yucatan Peninsula in Mexico. Natural sinkholes in limestone, like this one, are called cenotes. People of Mexico have been using the …

Nov 2, 2023 · Also called sinks, sinkholes owe much to water. A sinkhole usually forms by erosion caused by frequent exposure to water. It comes down to the type of rocks underlying the soil (as opposed to the soil above called the overburden).

Jun 26, 2017 · Sinkholes are pits in the ground that form in areas where water gathers without external drainage, according to the U.S. Geological Survey.