There was some confusion initially as to which fault was at fault for Sunday's 6.0 quake in Napa, California. It's currently believed that the culprit was the West Napa Fault, which is part of a huge fault zone extending outward from the San Andreas Fault. The quake injured 170 people, and caused severe damage to homes, wineries, and businesses. More at LiveScience.
Pictured: A mannequin lays in broken glass in front of a damaged store in Napa, California. Photo by Justin Sullivan/Getty Images.