The term “ground zero” is usually used to refer to the primary area of detonation in cases of nuclear explosions or devastation relating to the impact of bombs. In explosions taking place above the ground, this term refers to the point on the Earth’s surface directly under the detonation and is sometimes even called the “hypocenter”. After the devastating attacks at the World Trade Center in September 2001, the site surrounding the Twin Towers that was impacted by the plane crashes was named “Ground Zero”, or “The Pile” to refer to the rubble that was left in the wake of the terrorist attacks.








