The only existing footage of the South Tower collapse from inside WTC 1

9/11: Plane crashes into the South Tower of the Trade Center

wtc | Keith Lane's video showing the collapse of the South Tower on September 11, 2001. A few weeks ago, I posted a video that captured exactly... | Instagram

wtc on Instagram: "This video was shot from Grand Ferry Park, near the Williamsburg Bridge, in Brooklyn, by Mike Ballou, and shows the collapse of the World Trade Center towers, on the morning of #September11 2001. The collapse of the Twin Towers on 9/11 was caused by a combination of aircraft impact damage and intense, multi-floor fires that weakened the steel structure, leading to a progressive, unstoppable chain reaction of floor failures and a total structural collapse. The planes severed su

wtc on Instagram: "Egon Zippel's 9/11 Footage shows the total collapse of the South Tower from West Street. The South Tower (2 WTC) of the World Trade Center was struck by United Airlines Flight 175 at 9:03 a.m. on 9/11, impacting floors 77-85, and collapsed at 9:59 a.m., 56 minutes later, due to the extreme heat from burning jet fuel and office contents weakening its steel structure, leading to progressive collapse and massive casualties, with only a few survivors escaping from above the impact