A 911 call made by vacationers staying at Summer Bay Resort has been released.
[LISTEN: 911 call released after sinkhole opens]
Around 10:30 p.m. Sunday, families in building 104 reported hearing cracking and popping sounds, and some people's windows began to break.
Lake County fire officials ruled the cause a sinkhole.
Everyone who was forced from the resort Sunday is now staying somewhere else on the property or at a hotel. Some people decided to go home.
Those who survived said it's been a memorable vacation, but for the wrong reasons.
"We have a building that's potentially collapsing," a caller told a 911 dispatcher.
"All I could think was (it was) an earthquake," said Faith Clark who was on the third floor.
Others in building 104 at Summer Bay Resort were watching a movie, and some were sleeping, but Debbie Ward was in the shower.
"All of a sudden we heard a big boom and the tub kind of lifted up and went down," said Ward, who is visiting Orlando from New Hampshire.
"I don't know if it's a sinkhole or what. They said the third floor was starting to shift and windows were popping out. They're thinking possible sinkhole, but they don't know," a caller told 911. "We've got people in the building. We're trying to get it evacuated, but they say it's collapsing so fast that they don't know if they can get to all these rooms."
The sinkhole is two-floors deep and 100 feet across, and it took dozens of people's belongings.
Instead of going to the theme parks, vacationers spent the day replacing everything from their toothbrushes to their socks.
As geologists evaluate the hole, families are weighing their options. For some, it means cutting their summer vacation short and going home.
"I don't think we fully comprehend everything that's happened," said Faith Clark, who is spending time with her sister, Debbie.
About 72 units have been affected by the sinkhole. People say they are in limbo trying to figure out what to do next, and if they can continue with their vacation.
Monday evening, the resort's geologists used some heavy equipment to look underground. From there they will decide when it's safe for some people to return to the surrounding buildings.