oak trees on the West Coast, was located on the second-to-last coastal wilderness area in California, and could be sitting on the fault that lightly shook Santa Barbara in a 1927 earthquake. The internal dispute over Diablo Canyon was a primary reason for the split-up of the Sierra Club, that led to the formation of Friends of the Earth by David Brower. In 1965, the Shoreline Preservation Conference demanded that regulators investigate the danger of faults near the proposed site, but was ignored. In 1972 a Los Angeles reporter discovered a report by Shell Oil Company geologists completed prior to construction of Diablo Canyon Power Plant of the existence of the Hosgri Fault 2½ miles offshore from the facility. As a result of the discovery, regulators forced PG&E to redesign and reinforce the facility. Diablo Canyon protests During the late 1970s, the Abalone Alliance organized protests in San Luis County and regularly picketed PG&E offices across the state. The Alliance published a newspaper, It's About Times, which provided a forum for activist debate. Separate groups within the Abalone coalition "developed their own foci and protest styles". On August 7, 1977, 1,500 people demonstrated at the gate of Diablo Canyon, resulting in 47 arrests. The next year, 5,000 people rallied and 487 were arrested. On September 10, 1981, the Abalone Alliance occupied the site, leading to 1,960 arrests. Nearly 30,000 people showed up in support. The protest motivated lawsuits seeking damages from the protest organizers. At the end of the ten-day action in 1981, a 25-year-old engineer discovered a mirror image reversal in the seismic blueprints. PG&E was forced spend $3 billion and three additional years of repairs before reopening. Anti-War Activists Daniel Ellsberg and Tom Hayden, activist stars like Ed Asner, Martin Sheen, Martin Landau, Blythe Danner, Patti Davis, Robin Williams, Lily Tomlin, Harrison Ford, Carrie Fisher, Marsha Mason, John Belushi, Jane Fonda and Robert Blake and performers such as Jackson Browne, Bonnie Raitt, Crosby, Stills, Nash & Young, The Eagles, Linda Ronstadt, Peter Yarrow, Holly Near, Joan Baez, Dan Fogelberg, Bruce Springsteen and the E Street Band, James Taylor, Carly Simon, Chaka Khan, The Doobie Brothers, Jesse Colin Young, Stevie Wonder, Gil Scott-Heron, Stevie Nicks, Tom Petty, Poco, Wavy Gravy, Warren Zevon and others joined the anti-nuclear concerts, protests and larger movement – which included a series of concerts at Madison Square Garden through Musicians United for Safe Energy,