The Deadliest, Costliest, and Most Intense Atlantic Hurricanes Have you ever wondered when the strongest hurricane occured in the Atlantic or anywhere in the world? How about where the costliest hurricane or most deadly hurricane occured? Just check the table to find information on the world's greatest hurricanes and tropical cyclones. Most Intense Atlantic Hurricanes - measured by pressure Strongest U.S. Landfalling Hurricanes - measured by pressure Costliest U.S. Hurricanes Deadliest U.S. Hurricanes Atlantic Category 5 Hurricanes - measured by wind speed Fastest Pressure Drop in Atlantic Hurricanes