September 10, 2010 11:16 am PG&E Talks About Role in Explosion, What's Next Johns said Friday morning a 30-inch gas pipe ruptured about three feet underground just before 6:30 p.m Thursday. US & World Videos 2:48 Forecast: Gradual warming trend 1:25 Bay Area high school seniors honored with Dave Goldberg Scholarship 1:10 Bay Area app monitors problems for people living with Parkinson's 0:26 Kaiser Permanente data breach may have affected millions 1:35 Kari's forecast: Gradual warming trend