At a gas station in www.amiliked.com/view/San_Bruno/d7513223 , a surveillance video caughtThursday's natural gas explosion and fire on film. "You can see one man getting ready to fill up his car when something catches his attention," notes NBC Bay Area, who first aired the footage. "That something was a huge fireball caused by an explosion of a 30-inch pipe."While there's no sound on the film, "people said there was a deafening whooshing noise that reminded them of a jet engine."