One woman who lives nearby told the Tampa Bay Times she has already made up her mind -- it's time to leave the house she bought less than two years ago. About half of Linda Fisher's driveway disappeared into the 40-yard-wide, 30-foot-deep hole.
"I didn't think I would have to move so soon," she said.
While the sinkhole, which opened Saturday, did not damage any houses, Fisher and residents of three other homes are living elsewhere. Hernando County officials said the hole is being examined while they try to decide on further action.
Peggy Helmick, who lives across from Fisher, said she called police Saturday when she saw the hole open and then watched as it got bigger.
"We were watching the Earth crumble," Helmick said.
The hole attracted a steady stream of sightseers on Sunday.
Spring Hill is a planned community near Tampa that has grown considerably in recent decades.
Florida, with its underlayer of limestone, is prone to sinkholes. They develop when underground caverns created by water dissolving the limestone collapse.