Original: It is the most compact hurricane or equivalent-strength tropical cyclone on record in the Australian basin , with gale-force winds extending only from the center and was the most compact system worldwide until 2008 when Tropical Storm Marco of the 2008 Atlantic hurricane season broke the record , with gale-force winds extending only from the center .
Simplified: Cyclone Tracy was a tropical cyclone that destroyed the city of Darwin , Northern Territory , Australia , from Christmas Eve to Christmas Day , 1974 .