10:28 a.m. September 11, 2001: Reporter Sees Ground-Level Explosion When North Tower Collapses

CBS News correspondent Carol Marin witnesses what she describes as a “gigantic fireball” coming from the base of the North Tower as it starts to collapse. [USA Today, 9/11/2001; Chicago Sun-Times, 9/12/2001; Daily Herald (Arlington Heights), 9/11/2002] Marin headed to the scene of the attacks and arrived on West Street after the South Tower collapsed. She then sees the second tower come down, later describing, “I was only a block or two away from the North Tower when the street trembled under my feet, a fireball of pooled jet fuel exploded out of the building’s base, and it too, unbelievably, started to collapse right in front of me.” [Chicago Sun-Times, 9/10/2006] (However, the explosion could not be due to “pooled jet fuel,” as, according to the National Institute of Standards and Technology, “The jet fuel” from the planes “was mostly consumed within the first few minutes after impact.” [National Institute of Standards and Technology, 6/18/2004; New York Times, 4/5/2005] ) In one telling, Marin describes, “a roar seemed to come out of the earth,” causing the fireball. [Gilbert et al., 2002] In another, she says, “there was a roar, an explosion, and we could see coming toward us a ball of flame, stories high.” She runs, and a firefighter throws her against a building to protect her. She recalls, “The flame somehow stopped short of us.” [CBS News, 2002, pp. 54] Other witnesses also describe the ground shaking before the North Tower collapse (see Shortly Before 10:28 a.m. September 11, 2001). And some witnesses similarly report seeing a fireball at ground level coming from the South Tower when it collapsed (see Shortly Before 9:59 a.m. September 11, 2001).