San Bruno, California (CNN) -- As Walter McCaffrey and his wife, Cherry, stood on their San Bruno, California, balcony Sunday, there was a sigh of relief amid devastation all around their two-story home.
"I'm just cleaning up now and trying to get my family back together," said Walter whose property sustained only minor damage.
The McCaffreys were among the first residents escorted back to their once-quiet neighborhood following Thursday's gas line explosion that destroyed 37 homes, killed at least four people and forced hundreds of others to run for their lives.
Just moments after the explosion, McCaffrey began recording iPhone video of the towering flames from his backyard patio and called his wife, urging her to stay out of the area.
"Cherry and our three children had just driven away when I heard the blast," said McCaffrey. "It shook the house, and everything around me wa