MENTASTA, ALASKA - NOVEMBER 4: One of the large cracks on the Tok Cutoff Highway, caused by an 7.9 magnitude earthquake on November 3 that rocked a sparsely populated area of interior Alaska, is seen November 4, 2002 near Mentasta, Alaska. The earthquake, one of the most powerful earthquakes ever recorded in the United States, knocked out some of the pipelines supports forcing the flow of oil to be shut down. (Photo by Alaska Department of Transportation/Getty Images)