PALM HARBOR, Fla. -- Palm Harbor Fire Rescue is investigating a possible sinkhole in the Highland Lakes neighborhood.

First responders found large cracks in the foundation of a home on Dorchester Drive near Highlands Boulevard North. Palm Harbor Fire Rescue first received a call around 11:30 p.m. Tuesday, Jan. 9.

Pinellas Co. authorities discussed updated on the possible depression at a press conference Wednesday afternoon:

A woman made it out of the home safely, Palm Harbor Fire Rescue said. The woman told Pinellas County 911 operators she was the only person inside the home.

Video: Palm Harbor woman calls 911 to report possible sinkhole

Editor's Note: The woman's private information is redacted from the video above.

Engineers need to inspect the home to see if the possible depression is a sinkhole. Authorities have yet to declare it as a sinkhole as of 6 a.m. Wednesday.

Investigators said the separation between the walls and the ceiling inside the home are separating about a half inch every 30 minutes as of Wednesday morning.

Video: Large cracks form on Palm Harbor home because of possible sinkhole

Photos: Palm Harbor fire crews investigate possible sinkhole

Editor's Note: The videos below are from 10News' coverage of July 2017's sinkhole in Land O' Lakes.

July 22, 2017 - Watch: How do sinkholes form?

July 14, 2017 - Watch: Answering your questions on sinkholes

Related: Insurance will cover destroyed sinkhole homes, but not neighbors

Make it easy to keep up-to-date with more stories like this. Download the 10 News app now.

Have a news tip? Email, or visit our Facebook page or Twitter feed.