Coverage of the aftermath of yesterday's San Francisco Bay area earthquake with Peter Jennings (ABC); taped segment with Greg Dobbs (ABC), Oakland Mayor Lionel Wilson, Daniel Ruby, and unidentified others at the scene of the collapsed portion of 1880; live interview by Jennings and Michaels with Baseball Commissioner Fay Vincent; taped segment with Bill Blakemore (ABC) and unidentified others; live interview by Jennings with Bruce Presgrave of the National Earthquake Research Center, Seismologist Thomas O'Rourke, and Professor Bryan Isacks; taped segment with Tom Jarriel (ABC) and Samuel Schwartz of the New York City Department of Transporation; taped segment with Mike Von Fremd (ABC), Charleston, SC Mayor Joseph Riley, Paul Hall of the Federal Emergency Management Agency, and unidentified Charleston residents; live interviews by Jennings with Riley and FEMA Associate Director Dennis Kwiatkowski; live interview by Jennings with VP Dan Quayle; taped segment with Al Michaels (ABC) and San Francisco Police Commander Isiah Nelson; live discussions between Jennings, Michaels, and John McKenzie (ABC); tape of Galileo space probe launch; taped segment with Beth Nissen (ABC) of excerpts from last night's ABC coverage of the earthquake.