The San Justo tornado was a powerful tornado which struck San Justo, a town in the province of Santa Fe, Argentina, on January 10, 1973. At least 63 people were reported dead and 350 were reported injured as it cut a 330 yard wide swath through the town. It was the most violent tornado ever recorded in South America, and also the entire Southern Hemisphere. This tornado is widely considered to have been an F5 on the Fujita Scale, had an economic cost of about $60,000 and was the deadliest tornado in Argentina's history.