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.
Douglas is a city in Cochise County, Arizona, United States. Douglas has a border crossing with Mexico and a history of mining. The population was 14,312 at the 2000 census. According to 2008 Census Bureau estimates, the population of the city is 20,316. Douglas is located at 31Â°20â²42â³N 109Â°32â²29â³W / 31.345Â°N 109.54139Â°W / 31.345; -109.54139 (31.344911, -109.541376).