Earthquake Causes Tsunami. Energy accumulates in the overriding plate until it exceeds the frictional forces between the two stuck plates. When this happens, the overriding plate snaps back into an unrestrained position. This sudden motion is the cause of the tsunami - because it gives an enormous shove to the overlying water.
Ajo is in the Sonoran Desert, tucked away in Western Pima County in Arizona, about 120 miles southwest of Phoenix and 130 miles west of Tucson.
Ajo AZ. The current location of Ajo, Arizona was founded by the New Cornelia Copper Company, a subsidiary of Calumet and Arizona Mining Company, in about 1915. The company owned town was established to house the workers at the adjacent open pit copper mine. Phelps Dodge acquired the Calumet and Arizona Mining Company in 1931.