Firefighters had gotten the flames under control by mid-afternoon, but hot spots continued to burn.
It's the second day in a row that a brush fire has broken out on Staten Island.
It took firefighters eight hours to get control over two wildfires in Great Kills Park and Arden Heights on Wednesday.
No serious injuries were reported in the fires, which started shortly before 3:00 p.m. in the federal parkland.
A Fire Department spokesman says one firefighter suffered a back injury and a civilian was taken to the hospital for smoke inhalation.
Some 250 firefighters battled the flames.
What sparked the fires remained under investigation.
The park is part of the Gateway National Recreation Area.