What time did the towers fall on 9 11?
Then at 9:59 a.m., the burning WTC South Tower collapses. Four minutes later, at 10:03 a.m., United Airlines Flight 93, crashes in a field near Shanksville, Pennsylvania. At 10:28 a.m., the WTC's North Tower collapsed.
What time did the second twin tower fall?
9:59:00: The South Tower of the World Trade Center collapses, 56 minutes after the impact of Flight 175. Speed is considered one of the likely factors during its much faster collapse unlike that of as the North Tower.
Why did the North and South Tower collapse?
Based on its comprehensive investigation, NIST concluded that the WTC towers collapsed because: The impact of the planes severed and damaged support columns, dislodged fireproofing insulation coating the steel floor trusses and steel columns, and widely dispersed jet fuel over multiple floors; and.
How long did it take for the north and south towers to collapse?
With damage to a greater number of floors lower down on the building, the south tower gave way first, crumbling to the ground at 9:59 a.m., only 56 minutes after being hit. The north tower collapsed less than a half hour later, at 10:28 a.m.