swath

swath    [swawth]

noun.  a broad path or strip of something 

"The explosions in a chemical warehouse in Tianjin, China affected a huge swath of the city: 17,000 homes damaged, 3,000 cars destroyed and more than 170 companies affected."

"The storm has left a wide swath of destruction across this southern state."

"A major nuclear accident would leave large swaths of territory uninhabitable for decades, with catastrophic impacts on humans, the economy and the environment."