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Sinkholes are not uncommon in the UK but can sometimes appear suddenly. ... be seen on 19th century maps of land directly under the sinkhole. ... can indicate which areas are more at risk if the ...
"Global Risk Identification Program (GRIP)". GRIP. "BioCaster Global Health Monitor". National Institute of Informatics (NII). Archived from the original on 2014-05-04. "World Bank's Hazard Risk Management". World Bank. Archived from the original on 2010-04-09 "Disaster News Network". Archived from the original on 2006-11-05
A huge sinkhole in a street in Surrey is continuing to grow and swallow up more road, with the county council declaring a major incident. The original hole first appeared in Godstone High Street ...
[2] [1] Suffosion sinkholes are normally associated with karst topography although they may form in other types of rock including chalk, gypsum and basalt. In the karst of the UK's Yorkshire Dales , numerous surface depressions known locally as "shakeholes" are the result of glacial till washing into fissures in the underlying limestone.
The Red Lake sinkhole in Croatia. 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.
Sinkholes can range in size from a few feet wide to hundreds of acres, and anywhere from 1 to 100 feet or more deep. Sinkholes can swallow up cars, parts of roads and even houses.
Water End Swallow Holes is a biological site of Special Scientific Interest in Hertfordshire, south-east England.Located in Welham Green and under the planning authority of Welwyn Hatfield District Council, it has an area of 11.3 hectares (28 acres).
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