California Gas Explosion

A fire fighting helicopter flys over a massive fire, Thursday, Sept. 9, 2010 in San Bruno, Calif. Utility officials said a gas line ruptured in the vicinity of the blast, which left a giant crater and sent flames tearing across several suburban blocks in San Bruno just after 6 p.m.

Gas Blast Engulfs Neighborhood in Flames

Credit: AP Photo/George Nikitin