Spectacular San Bruno PG&E Gas Pipeline Explosion
September 9, 2010 a 30 inch natural gas supply line explodes in a San Bruno, California, residential neighborhood, killing possibly 7 people (4 confirmed, 3 missing). The pipeline was over 50 years old, and in need of repairs. Flames burned about 50 homes. The explosion sent a 28 foot section of pipe 100 feet into the air.