The north tower was hit between floors 94 and 98 at 8:46 a.m. ET; it did not fall until 10:29 a.m., giving most people one hour and 43 minutes to leave. 5. The south tower survived for an incredible 56 minutes after being hit at 9:03 a.m. ET. Most of that time was spent on the same floor, calling family members because many people were stuck in elevators.
There were 1,362 people working in the towers when they collapsed. Of these, 772 died. The average age of a victim was 44 years old; 20 were children under 18. Nearly half (48%) of the victims were male.
Of the 2,200 people who lived in the towers, 693 died. One third of all victims were women.
The total cost of repairing the damage caused by the attacks has been estimated at more than $20 billion.
$10 million per minute: Total direct costs of the 2001 terrorist attacks. $3,000 per second: Average wage paid to an emergency responder at the time of the attack. $60,000 per image: Estimated cost of imaging one square foot of wall space. $5,922: Annual salary of Ramzi Yousef when he was hired as an information technology specialist at World Trade Center Company.
The fall killed around 800 workers and first responders both inside and outside the structure. The north tower fell at 10:28 a.m. American Airlines Flight 11 was the first to strike it at 8:46 a.m. When the building collapsed, it killed almost 1,600 people. Two firefighters died in the collapse.
The south tower fell at 2:51 p.m. Eastern Standard Time (EST) after being hit by American Airlines Flight 77 at about 9:40 a.m. That attack killed 62 people. Sixteen more people died when United Airlines Flight 93 crashed in Pennsylvania after being attacked by terrorists.
The attacks ended up killing nearly 3,000 people. They began with bombings at the World Trade Center and the Pentagon and ended with crashes of two planes into each tower of the New York City World Trade Center.
Both towers were 1,453 feet tall and contained nearly 100 floors each. The buildings were built in 1973 and 1974 as part of a plan called "World Trade Center One." The complex included a 32-floor office building that was not involved in the attacks.
After the attacks, Congress passed a law requiring safety measures to be put in place for any new construction over 50 feet high. The law was designed to prevent another attack like this one. But some critics say these laws stop development of new technology or increase the cost of building projects too much.
The North Tower The North Tower of One World Trade Center (WTC 1) was hit at 8:46 a.m. Eastern time and collapsed at 10:28 a.m. The South Tower of the World Trade Center (WTC 2) was hit at 9:03 a.m. and fell at 9:59 a.m. More than a dozen more neighboring or nearby structures were badly damaged or destroyed as a consequence of the debris.
Al-Qaeda leaders claimed responsibility for the attacks, which they called "revenge against America for its aggression against Iraq." In fact, however, there is no evidence that Iraq had anything to do with it. The FBI believes that al-Qaeda leader Osama bin Laden ordered the attacks because he perceived the World Trade Center as representative of American power and prestige.
Federal agencies responsible for security at the WTC included the Department of Homeland Security, which managed security at the site and around the city; the Federal Bureau of Investigation, which led the investigation into the attacks' causes; and the National Park Service, which manages the site today. However, these agencies had been weakened by budget cuts under President Bush, so they were not prepared for such an attack.
Many survivors say they felt a "bump" and then saw smoke, immediately knowing that something terrible had happened.
1 hour, 42 minutes 10:28:22: One hour and 42 minutes after the hit of Flight 11, the North Tower of the World Trade Center falls. This video shows the fall from the moment of the impact until the very end.
The building is seen falling from different angles using high-speed cameras and computer graphics. The final image was taken from a helicopter flying over New York City.
This collapse took place 12 years to date after the original construction year of 2001. However, because some modern improvements were made to the tower after its refurbishment in 1990, such as new windows and flooring, the time frame for its complete collapse may have been shortened slightly.
The first section to fail was the base of the tower, which entered an uncontrolled freefall before finally hitting the ground at nearly 400 mph (640 km/h). The impact destroyed most of the surrounding buildings and caused serious damage to others, including downwind blocks where large sections of wall collapsed.
Because the North Tower was struck squarely in the middle, all three stairwells in the tower core were destroyed or obstructed by rubble, restricting access to lower levels. 614 people died on the hit levels and the floors above them in the South Tower. The cause of this tragedy is still under investigation, but it may have been due to the use of explosives to bring down the building.
The name "trade center" is actually a trademark owned by WTC Properties, the company that owns and manages the site. However, the term is widely used to describe what happened on September 11, 2001, and has become part of the cultural lexicon.
This is when many people around the world stop what they are doing at exactly the same time to watch a series of television reports about how two airplanes had hijacked those buildings in New York City and then crashed into them, killing thousands. This single day has become a symbol for tragedy, loss, and resilience. It also marks the beginning of American involvement in the war in Afghanistan (against the Taliban) and the beginning of the Iraq War (against Saddam Hussein).
Why do Americans hate the word "terrorism?"