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.
Apache Junction lies primarily in Pinal County, adjoining Maricopa County to the west. It was incorporated in 1978. Apache Junction attracts upwards of 40,000 winter visitors and retirees annually due to its climate and proximity to many of Arizonaâs outstanding recreational and historical areas. More than 800 retail and service businesses currently operate within the city.