Authorities maintain 24/7 search for a motorcyclist believed to have fallen into a complex underground cave system.

A federal court has approved a class-action settlement between West Virginia landowners and what is believed to be the nation ...

Understanding how Earth's climate has naturally fluctuated during the Holocene—the current geological epoch spanning the last ...

The Xiaozhai Tiankeng stands as the textbook example of what happens when karst processes are given perfect working ...

The Xiaozhai Tiankeng, often called the “Heavenly Pit,” stands as the planet’s largest and deepest known sinkhole. This ...

National Marine Science Centre, Southern Cross University, Coffs Harbour 2450, Australia Faculty of Science and Engineering, Southern Cross University, Lismore 2480, Australia National Marine Science ...

A new study published in Nature Cities found that 25 of the 28 largest U.S. cities are sinking.San Antonio is sinking at a ...

A city spokesperson said in a press release on Thursday that city crews have already been responding to "a high volume of sinkhole reports, along with other water-related emergencies, including ...

Meanwhile, a depression appeared on the ground and a sinkhole opened on private property Thursday in the 1700 block of Rosewood Drive, Hanover Township, Northampton County, about a block away from ...

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A huge sinkhole emerged in Merthyr Tydfil county borough following a burst water pipe. Merthyr Tydfil council officers and workers from Dwr Cymru Welsh Water rushed to the scene on Tuesday morning ...