Sinkholes may not occur as frequently as other natural disasters but they can be as costly and life-threatening. There are three types of sinkholes, two of which occur over extended periods of time. However the ones that most commonly end up on the news are called cover-collapse sinkholes and they can form in a matter of seconds.
Collapse sinkholes occur when Earth's bedrock erodes and can no longer support the weight at the surface. They can be triggered instantaneously by various factors, however there are many clues at the surface to predict these disasters. If detected early enough, sinkholes can be prevented. In this week's Health Front, Marja Martinez reveals how to tell if there is a sinkhole forming underneath your home.