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.
Airway Heights, WA Acceptable: Airway Hgts Stats and Demographics for the 99001 ZIP Code. ZIP code 99001 is located in east Washington and covers a slightly less than average land area compared to other ZIP codes in the United States. It also has a slightly less than average population density. The people living in ZIP code 99001 are primarily white.