Why did the South Tower collapse first?

The South Tower (WTC 2) collapsed first because the plane hit it at a lower floor, meaning significantly more weight from upper floors pressed down on the damaged structure, and the impact angle caused greater damage to the central core and perimeter columns, weakening it faster than the North Tower, despite the North Tower being hit first. The intense fires, fueled by jet fuel, further weakened the already stressed steel, leading to structural failure and progressive collapse within 56 minutes of impact.

Why did the south tower come down first?

As others have said the plane hit the south tower at an angle and at lower floors than the north tower (77-85). So there was more weight above the impact zone subject to weakening due to the fire/jet fuel.

Did anyone survive the south tower collapse?

The south tower

Only four people on the 81st floor or above survived; they used an unblocked stairway to escape. All but four of the 599 who died in the south tower worked above the impact zone.

How long did the south tower take to collapse?

At 9:03 a.m. the South Tower (WTC 2) was struck by United Airlines Flight 175; it collapsed at 9:59 a.m. (after burning for 56 minutes.)

How many bodies are still missing from 9/11?

After 24 years, the NYC medical examiner still works to identify 9/11 victims 1,100 people killed on 9/11 in New York City have not had any of their remains identified by authorities.

Why did the South Tower Collapse first??

Who was the youngest victim of 9 11?

At two and a half years old, Christine Lee Hanson was the youngest of the eight children who were killed on 9/11, all passengers aboard the aircraft commandeered by terrorists.

Did people leave the South Tower before it was hit?

Clark and Praimnath had left the South Tower just three minutes before it collapsed; they were two of the last 25 people to exit the building; Clark was number 22. Only two other people exited the South Tower after Clark and Praimnath.

How long did it take to extinguish all the flames from 9/11?

One hundred days after the suicide attacks that brought down the twin towers of the World Trade Centre and killed nearly 3,000 people, the final fires have stopped burning at Ground Zero. For months, acrid clouds of smoke from the site could be smelled several miles away in Brooklyn and upper Manhattan.

How long after 9/11 did planes not fly?

The federal government worked to strengthen national security, realizing possible security threats in aviation. As a result, American aviation changed forever. Airports and commercial flights began to reopen two days later on September 13, but with stricter security policies and checks.

How many kids died in 911?

Eight children were among the nearly 3,000 victims of the 9/11 attacks, all of whom were passengers on the hijacked planes, including a 2.5-year-old and several 11-year-olds on a school trip, with many more children tragically losing a parent that day.

Was anyone pulled from 9/11 alive?

In total, twenty survivors were pulled out of the rubble.

Why couldn't helicopters rescue people on 9/11?

They hoped to rescue people trapped above the fire, but intense smoke, extreme heat, and locked roof doors made it impossible. Pilots couldn't land or hover safely due to poor visibility and dangerous conditions. No rooftop rescues happened that day, despite their best efforts.

How fast was the plane going when it hit the South Tower?

United Airlines Flight 175 hit the South Tower of the World Trade Center between floors 77 and 85 at approximately 9:03 a.m. on September 11, 2001. Its speed at impact was estimated to be between 537 mph and 586 mph, (which is equal to 941 kilometers per hour.)

Did firefighters know the towers would collapse?

At first nobody knew the towers would collapse, after the south tower collapsed almost everyone including first responders started evacuating the area because they knew there was a good chance the north tower was coming down as well.

Did people at the bottom of the Twin Towers survive?

Only 20 people were rescued alive from the rubble of the collapsed World Trade Center Twin Towers on September 11 and 12, 2001. This group included individuals who managed to dig themselves out and a team of firefighters who survived inside a stairwell.

Was Cruz at fault for the crash?

Even though Cruz was cleared in the crash, both drivers were negligent.

How did they clean up after 9/11?

Tully crews worked 24-hours a day, seven days a week, moving tremendous quantities of debris, transporting the debris to the Fresh Kills Landfill in Staten Island which was re-opened for the recovery operation. Tully trucked some 500 loads of debris per day.

What is the 30/30/30 rule for fire?

The 30-30-30 rule for fire is a wildfire prediction guideline: extreme fire behavior is likely when temperatures are over 30°C (86°F), relative humidity is 30% or less, and wind speeds exceed 30 km/h (19 mph), creating dangerous "crossover" conditions where fuel dries out and spreads quickly, demanding high awareness and caution. 

Did anyone survive on the 92nd floor?

No, tragically, no one survived on the 92nd floor of the North Tower (WTC 1) on 9/11; the plane hit floors 93-99, but debris blocked all stairwells on the 92nd floor, trapping everyone in what became an unsurvivable zone, leading to deaths from smoke, fire, or the eventual collapse. While the 91st floor had survivors who escaped via a clear stairwell (Stairwell C), the 92nd floor was the lowest floor from which escape was impossible. 

Would the north tower have collapsed if the South Tower didn't?

The difference in the impacts was such that a senior FDNY chief reportedly strongly disbelieving that the North Tower would collapse even after witnessing the collapse of the South Tower, because the North had not been struck at a corner.

What was the largest sea evacuation in history?

The evacuation of New York included the largest sea evacuation in recorded history, with over 500,000 being evacuated in 9 hours by hundreds of boats. January 2002 – 300,000 residents of the city of Goma, Democratic Republic of the Congo were evacuated in three days due to the eruption of the Mount Nyiragongo.

What celebrity almost died on 9/11?

Mark Wahlberg was supposed to be on one of the airplanes that flew out of Boston and ended up crashing into the World Trade Center.

Who was the oldest person that died on 9/11?

The average age of the dead in New York City was 40. The youngest victim was Christine Lee Hanson of Groton, Massachusetts, a two-and-a-half-year-old girl who was a passenger on Flight 175. The oldest was Robert Norton, an 85-year-old retiree from Lubec, Maine who was on Flight 11.

How many animals died in 9/11?

Animal heroes

Only one dog was killed at the World Trade Center site, a bomb-sniffing dog named Sirius who was brought to the scene by New York/New Jersey Port Authority police officer David Lim. Cyrus was crushed in his basement kennel when the first tower fell.