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: Tracy killed 71 people , caused $ 837 million in damage ( 1974 AUD ) and destroyed more than 70 % of Darwins buildings , including 80 % of the houses .