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Meteorologist Steve Frazier Meteorologist Steve Frazier

Great video is always an online eye catcher. Check out this video of classic Corvettes being swallowed up by a sink hole in Kentucky.

CLICK HERE TO WATCH VIDEO: Sinkhole Swallows Corvettes

Sinkholes can form in areas where there is soluble rock beneath the layer of earth. This layer of rock is easy eroded by any water source running through it. Once the rock below is eroded, it forms a void, and the earth above collapses to fill that void. Some of the most common types of soluble rocks are limestone, carbonate rock, salt beds, or basically any rock that can naturally be dissolved by groundwater circulating through them. What adds a bit of drama to a sinkhole is the fact that the sinkhole is usually a long time in the making. Topsoil, trees, plants and even man made pipes and plumbing can hold a patch of land in place despite the huge crater being carved out below it. Once the land above can no longer support itself, it gives way and a sinkhole is dramatically born.

Sinkhole opens up at National Corvette Museum FOXNEWS.COM

The map below shows areas of the United States where certain rock types that are susceptible to eroding form water. These rock types are evaporites (salt, gypsum, and anhydrite) and carbonates (limestone and dolomite). Evaporite rocks underlie about 35 to 40 percent of the United States, though in many areas they are buried at great depths.

As you can see from that map, most of us in the upper Midwest is not sitting on top of sinkhole prone land. The one exception is extreme southeast Minnesota and southwestern Wisconsin, which are some of the most sinkhole prone areas in the country because of the large amount of carbonate rock found under that region. However, that does not mean we are completely exempt from the sinkhole fear. Sinkholes can also occur at the hand of man. Modern day construction and mining projects, underground water and sewer systems, and even something as simple as broken water pipes can erode enough of the underground to cause the topsoil to come caving down. Click on the link below of a previous FOX 9 story on a man who survived falling in a sinkhole earlier this year in Bloomington, MN.

Watch your step everyone!

We would love to see your weather photos! Email them to Also I hope you will LIKE my Facebook page!/SteveFrazierFox9Kmsp and follow me on Twitter @frazierfox9. Thanks for watching! FRAZIER



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