The Sacramento earthquake rocked the California State Capitol as the midnight hour approached, leaving startled Northern Californians to wonder if the quake was The Big One. The 5.2 magnitude earthquake shook the state capitol building and rattled the California Legislature and State Assembly offices in the dead of night. The earthquake epicenter was 23 miles outside of Truckee, CA and was felt in Sacramento, Oakland and San Francisco. The USGS reports at least five aftershocks following the temblor, and local nerves are on-edge.