What causes earthquakes? Earth's crust ranges from 3 to 45 miles deep (5 to 70 kilometers). The crust is a thin, hard shell that floats on the denser, hotter rock of the mantle.
Sponsored Topics. Airway Heights is a city in Spokane County, Washington, United States, just west of Spokane. The population was 6,114 at the 2010 census. The city's name was taken from its close proximity to Fairchild Air Force Base and Spokane International Airport. Airway Heights was officially incorporated on June 28, 1955.
Woodway, Washington. Woodway is a city in Snohomish County, Washington, United States. The population was 1,307 at the 2010 census. Based on per capita income, one of the more reliable measures of affluence, Woodway ranks 6th of 522 areas in the state of Washington to be ranked. It is also the highest rank achieved in Snohomish County.