The Gulf of California is a body of water that separates the Baja California Peninsula from the Mexico mainland. It is bordered by the States of Mexico of Baja California, Baja California Sur, Sonora, and Sinaloa.... , created relatively recently in geologic terms by the volcanism associated with the East Pacific Rise
East Pacific Rise
The East Pacific Rise is a mid-oceanic ridge, a divergent tectonic plate boundary located along the floor of the Pacific Ocean. It separates the Pacific Plate to the west from the North American Plate, the Rivera Plate, the Cocos Plate, the Nazca Plate, and the Antarctic Plate.... .