It was the main fault along which the 2002 Denali earthquake occurred , which was measured as a magnitude of 7.9 '' Mw '' . During the afternoon of November 3 , 2002 , the water in Seattle 's Lake Union suddenly began sloshing hard enough to knock houseboats off their moorings . Water in pools , ponds , and bayous as far away as Texas and Louisiana splashed for nearly half an hour
2002 Denali earthquake
2002 Denali earthquake
Denali Fault