A 5.1 magnitude earthquake hit northwestern Mexico early Tuesday morning, the U.S. Geological Survey reported. The epicenter of the quake was in Baja California. Shakes could be felt as far away as Yuma, Ariz. There have so far been no reports of injury or property damage. Accuweather.com reported tremors were \"strong\" as per the Mercali scale, which would typically have light to moderate damage potential.