KENSINGTON (WPVI) --
It happened at 5:00 a.m. Wednesday in the 300 block of East Tusculum Street.
Neighbors reported hearing an explosion so strong it rattled the floors of their homes.
"My floor was vibrating and we looked out and there was fire and the whole wall blown out," one resident told Action News. "We started knocking on the neighbors' houses and getting them all out."
Authorities tell Action News firefighters arrived to find fire coming from the 2nd and 3rd floors of a row house.
The flames had spread to neighboring homes, and firefighters evacuated a number of residents on the block.
The blaze appeared to be under control by 6:30 a.m. Firefighters remained on the scene dousing hot spots and removing some of the debris.
Neighbors remained outside comforting each other.
Remarkably, there were no injuries reported.
Neighbors said a man in his 30s lives alone in the home where the blast happened. Officials say he has been located and is unharmed.
Action News is told Philadelphia Licenses and Inspections has been called to the scene because of a partial collapse of the home where the blast happened.
The American Red Cross was also said to be enroute to the scene.