State geologists have been to 30 sites and mapped about 50 sinkholes as they begin to plumb the depth of the state's vulnerability to ground collapse.
Florida received a $1.08 million federal grant for a three-year statewide study, starting last month with a pilot study in Columbia, Hamilton and Suwannee counties, according to The Tampa Tribune.
The result will be a detailed, multilayered map that shows where sinkholes are most likely to form, but doesn't predict where and when individual sinkholes will occur.
In February, a Seffner man died when a sinkhole opened under his bedroom as he slept.
Sinkholes are common in Florida because of porous rock, such as limestone, that stores water underground.