Boom!

Jonathan Lai has an article in The Philadelphia Inquirer about a house that went boom in New Jersey:

Neighbors rushed in to pull a badly burned husband and wife from the rubble after a large explosion leveled a home in Cape May County, authorities said. The couple were airlifted from their home on the 200 block of East Atlantic Avenue, in the Villas section of Lower Township, to Crozer-Chester Medical Center. They were in critical condition and "receiving care in our burn center", according to hospital spokesman Grant Gegwich.
"It was pandemonium, obviously, nobody knew what happened," said Michael Beck, the township's mayor, describing the moments after the "huge, humongous blast" he heard and felt while cooking at his home about 150 feet away. Beck said he called 911, ran over, and climbed the fence, then realized the couple were still inside the collapsed building. "I was just like: 'Oh, my God.' I knew they were home. I could see their cars, I knew they were in there," Beck said. A group of neighbors went to work immediately, even as smoke began to rise from the burning building, Beck said. "There had to be a dozen or so neighbors trying to pull debris off. A couple of the men went to the front, some of them went to the back," Beck, 63, said by phone. "They brought the wife out first, husband right behind... within two, three minutes of the explosion they were out of there. By then, it was really burning pretty good, the front doors were blown down the street," Beck said. Police, fire, and medical personnel arrived moments later, Beck said, and the immediate area was evacuated for about an hour and a half.
What caused the explosion was unclear in the immediate aftermath.

Rico says whatever it was, they were lucky...