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.
The primary airport is the Seattle-Tacoma International Airport, more commonly known as Sea-Tac, located roughly 15 miles south of downtown Seattle. The Boeing Field-King County International Airport is less than 10 miles south of the city, but flights into this airport are generally more limited and a bit more expensive.