Worst terrorist acts - insured property losses 1970-2021
As of 2021, the September 11, 2001 terrorist attacks in New York, Washington and Pennsylvania was the worst terrorist attack on record in terms of fatalities and insured property losses, which totaled about 28.9 billion U.S. dollars. In 1993, a bomb exploded near NatWest tower in the financial district in London which caused insured property losses of 1.4 billion U.S. dollars.