Today in fire history: a violent explosion ripped through the basement of the World Trade Center killing six people and injuring over 1,000 people during evacuation

On Friday, February 26, 1993, a violent explosion ripped through the sub-basement levels of New York's World Trade Center killing six people. The explosion and subsequent fire caused extensive structural damage in several basement levels, caused damage that interfered with the operation of the fire protection and other emergency systems, and resulted in the evacuation of approximately 100,000 occupants of the World Trade Center complex. Over 1,000 people were injured during the evacuation. The World Trade Center complex includes seven high-rise buildings, a shopping mall and several levels of underground parking. The two largest high-rise buildings are 110 stories tall...