Posted: March 20, 2006     Concord-Green Valley Fault Probability for one or more magnitude 6.7 or greater earthquakes from 2003 to 2032: 4 % Along with the Greenville and Mt. Diablo faults, an earthquake along the Concord-Green Valley Fault line would mostly affect the Sacramento-San Joaquin areas. The fault lies 10 miles east of Napa. Damage from the creep of the fault can be seen in the sidewalks and streets of downtown Concord, Calif. No major earthquakes have been recorded on the fault.		Main: The 1906 Earthquake Birth of Earthquake Science Bay Area Preparedness P-wave Warnings Map: Major Bay Area Faults Slide Show: Deconstructing the 1906 Quake Interactive: Will This Building Stand? Lesson Plan: History Through First-Person Accounts