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.
The village of Concho, Arizona is located in Apache County at the northern edge of the White Mountains Recreational Area of eastern Arizona. Concho was one of the first communities founded in the area by pioneers from Spain and from Utah. Because Concho is off the beaten path, the village has been able to keep its small town atmosphere while the residents are still close enough to larger towns to take advantage of their activities and businesses.