sylvia geller, who lives upstairs thought half of the building was gone they evacuated a motel because flaming fuel started flowing down the street. >> shocking, you keep thinking what could that be? last thing you'd think of, is a crash. i never heard a crash like that. >> well, despite explosion and fire, two men got out safely. market street closed while crews cleared the scene the driver says his hood popped up. >> pg&e getting ready for big quake. the utility held a simulation and set up a command center at the cal palace. workers were sent out to check on downed wires and onlying damage to systems and says it's initial response would not be in the center of the destruction. >> those typically require rebuilds. as you move away from those centers, right, lights and gas can come on quicker. less work needs to be done. >> pg&e is testing out new technology. >> there is a special job fair to help military veterans. law enforcement agencies like california patrol and san francisco sheriff department took part in this. combat veterans have to fight the stigma from ptsd, organizers say