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Three counties in Florida's Tampa area make up a region sometimes called "sinkhole alley" because of the over 20,000 sinkholes there, almost 75% of the sinkholes in the whole state, according to ...
Daisetta, Texas – sits on a salt dome, in 1969, 1981, and again in 2008, sinkholes formed in the area; Deep Lake (Florida) – a natural sinkhole in Big Cypress National Preserve in Florida; Deep Run Ponds Natural Area Preserve – contains one of the largest remaining systems of the Shenandoah Valley sinkhole ponds in Virginia
The most likely locations for sinkhole collapse are areas where there is already a high density of existing sinkholes. Their presence shows that the subsurface contains a cave system or other unstable voids. [21] Where large cavities exist in the limestone large surface collapses can occur, such the Winter Park, Florida sinkhole collapse.
In many places, large sinkholes open up, as well as surface cavities. Damage from Hurricane Katrina was exacerbated due to coastal sinking, associated with groundwater withdrawal. Major areas affected include the San Joaquin Valley in California, [8] Central Arizona, [2] Mexico City, [9] and Jakarta, Indonesia. [10]
A sinkhole is an area of ground that has no natural external surface drainage and can form when the ground below the land surface can no longer support the land above, according to the U.S ...
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The Great Blue Hole, located near Ambergris Caye, Belize Dean's Blue Hole, Long Island, Bahamas Watling's Blue Hole, San Salvador Island, Bahamas. A blue hole is a large marine cavern or sinkhole, which is open to the surface and has developed in a bank or island composed of a carbonate bedrock (limestone or coral reef).
Sinkholes are so common in Florida that the state requires insurance providers to offer sinkhole insurance. But what region of the state has the most?