Not the Civil War -- World War Two. Although more American died in the Civil War, more Americans were killed in WW2. It's a pedantic technicality perhaps, but the Civil War was America's deadliest war, World War II its bloodiest.
The San Andreas Fault is the transform boundary between the North American Plate and the Pacific Plate. During the 1906 San Francisco earthquake the northern section of the San Andreas Fault slipped northward along the fault from San Juan Bautista to Cape Mendocino, a total of 296 miles (477km).
A transform fault boundary occurs when two plates slide past each other horizontally. Most occur on the ocean floor but some, like the San Andreas fault, occur on land. The San Andreas fault is the most famous fault boundary and is a result of the Pacific plate moving against the North American plate.