Florida Sinkhole Opens Between Two Homes, Threatens Neighborhood

A Florida Sinkhole more than 25 feet across and 50 feet deep opened up between two homes this weekend in the Florida residential community “The Villages.” The hole opened after heavy rainfall in the area put stress on the soil, causing the ground to collapse. This new sinkhole comes just weeks after a previous sinkhole was filled in on the same property. Crews has just finished completely filling and securing the first hole on Friday night when they were back on Saturday night to treat an adjacent, and larger, sinkhole. (I think it’s time to look into some new property, homeowners!)

Thankfully, no one was injured, and both families were out of the house when parts of their yard and driveway were sucked into the hole. Crews this time worked round the clock Saturday and Sunday morning to work on filling the dangerous hole as soon as possible. This much larger hole has great potential to spread and open even larger next time, threatening the entire block and even neighborhood. Currently, the hole is being filled with 115 truckloads of grout, with sand hole crews telling local news they’ll lay dirt, grass, and landscaping starting on Monday.

One of the homes is also secured with steel pinnings directly to the limestone, which can keep the structure in place if another hole opened. ‘The house isn’t going to go anywhere, as long as the hole doesn’t move much past where it is right now,’ geologist Drew Glasbrenner says. ‘You can never know for sure but the repair should slow it down and eventually stop it from expanding,’ he added.

County officials say that if sinkholes continue to be a problem in the area (which is likely during the rainy season), more residents could be asked to evacuate their homes as a safety precaution. This is an all too common problem in Florida, which is only second behind Minnesota in most sinkholes in the United States. Three Tampa Bay counties – Hernando, Pasco, and Hillborough – are known as “sinkhole alley,” as two-thirds of all of Florida’s sinkhole damage comes from that area.

What exactly causes these holes to open in the ground? For one, Florida’s peninsula is made of porous carbonate limestone rocks, which are rocks that help move water underground. Over time, these rocks dissolve from an acid created by the oxygen molecules in water, creating gaps underneath the limestone roof. When the pressure on the surface becomes too much for the limestone roof to carry, the roof collapses and the dissolved limestone hole is exposed. The most extreme case of sinkhole damage happened just last February, when Florida man Jeffrey Bush was sucked into a sinkhole that opened underneath his bedroom. Despite an exhaustive search, his body was never found. (Click image for better view). https://images.search.yahoo.com/search/images;_ylt=A0LEV0Z7cFRTZGUAyEpXN... (Place your Cursor/mouse over each photo to view , and information about each picture will pop up to read).

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bluesbaby5050: Florida is not the..............

The best place to live by the activities underground in that state. It is surrounded on both sides of the Peninsular by the Gulf of Mexico, and the Atlantic Ocean. Edgar Cayce once said, "Florida will one day become a small Island, because most of it will sink below the ocean, as will much of the south eastern states in the U.S. because of the" Future Earth Changes"

bluesbaby5050: NASA Research Could Lead To Predicting Sinkholes

Two NASA researchers examined radar images and discovered that the ground near a huge sinkhole had begun shifting at least a month earlier. The findings raise the possibility that engineers eventually could develop a way to predict the location of sinkholes.
Radar images taken from planes or satellites could someday be used to predict where sinkholes might form — a potential boon for Florida, the nation’s sinkhole capital.

The possibility of an early-warning system stems from new NASA research into a monstrous sinkhole that opened in Louisiana in 2012, forcing the evacuation of hundreds of residents.

Two NASA researchers examined radar images of the sinkhole area near Bayou Corne, La. Cathleen Jones and Ron Bloom discovered that the ground near Bayou Corne began shifting at least a month before the sinkhole formed — as much as 10 inches toward where the sinkhole started. Since its formation, the sinkhole has expanded to 25 acres and is still growing.

The NASA findings raise the possibility that engineers eventually could develop a way to predict the location of sinkholes. It would require the constant collection and monitoring of the Earth’s surface with radar data collected from planes or satellites.

“It’s not a magic bullet,” Bloom said. But it could be “one more tool in a tool kit.”

The radar images studied by the two NASA scientists were part of the agency’s ongoing effort to monitor the Louisiana coast, which is rapidly sinking into the Gulf of Mexico. Although the Louisiana images were taken from a research jet, the scientists said a satellite with similar technology could do the same job.

And though such a system wouldn’t be cheap — the price of building and launching a satellite usually is in the hundreds of millions of dollars — the gains could be significant. In Florida alone, sinkholes cause about that much property damage each year.

Although there are no recent state data on sinkhole damage, a 2010 report by the Florida Office of Insurance Regulation estimated that sinkholes each year cost the state $200 million to $400 million.

Thousands of claims related to sinkholes were made and closed in recent years. In 2009 alone, there were about 4,700 closed claims and 2,600 open claims, according to the report. The majority of claims tallied by state officials were from three counties — Hernando, Pasco and Hillsborough along Florida’s west coast — though Orange and Polk were in the top 10 statewide from 2006 to 2010.

In one high-profile case last year, a sinkhole wrecked villas at Summer Bay Resort near Walt Disney World, forcing residents to evacuate.

There’s a human cost, too. Even though sinkhole deaths are rare, a Hillsborough County man was killed last year when a sinkhole formed beneath his house.

The prevalence of sinkholes in Florida can be attributed to the state’s geology.

Sinkholes are most commonly found in areas where the underlying rock can easily be dissolved by groundwater. Once eroded, the surface then can collapse into underground caves and other spaces. Florida, with its wet climate and porous limestone beneath the surface, is particularly susceptible to this type of natural disaster.

Aware of the dangers, Florida officials also are taking steps to detect sinkholes.

Last year, state geologists began a three-year, $1 million project to identify which areas in Florida are most conducive to sinkhole formation. They've begun by surveying three northern Florida counties — Columbia, Hamilton and Suwannee — with the goal of creating a statewide “rating of vulnerability for sinkhole formation,” said Clint Kromhout, a geologist with the Florida Geological Survey.

The hope, he added, is to give emergency officials more information to help “mitigate against potential loss of property and life during sinkhole formation,” he said.

Although property owners have limited options when faced with a sinkhole — other than to evacuate — state officials said knowing more about vulnerable areas could help home builders and local governments avoid sinkholes when planning developments.

“One of the most important things we can do, and one of the more effective things we can do, is educate the public about the risks,” said Aaron Gallaher, a spokesman for the Florida Division of Emergency Management

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