It is known as 1980 Titan II Missile Explosion, Damascus, AR Missile Silo Explosion, Damascus, AR Missile Silo Explosion, Sep' 1980, Titan II Missile Accident, Disaster at Silo 7, Arkansas atomic missile explosion and 1980 Damascus, Arkansas incident. The fuel tank of a Titan II ICBM missile exploded whilst the missile was still in it's silo after a workman dropped a tool that fell on to his platform, rolled off the edge, fell in to the silo and then pierced the Stage I fuel tank. Once all the fuel had exited the tank, the 103ft missile collapse in on it's self due to it's own dead weight.