of the explosion was accidental ignition by a drunk guard. 59 people died, and 185 others seriously wounded; altogether, over 1,300 people were injured or killed. Los Alfaques disaster On 11 July 1978, an overloaded tanker truck carrying 23 tons of liquefied propylene crashed and ruptured in Spain, emitting a white cloud of ground-hugging fumes which spread into a nearby campground and discothèque before reaching an ignition source and exploding. 217 people were killed and 200 more severely burned. Murdock BLEVEs In 1983 near Murdock, Illinois, at least two tanker cars of a burning derailed train exploded into BLEVEs; one of them was thrown nearly . Benton fireworks disaster On 27 May 1983, an explosion at an illegal fireworks factory near Benton, Tennessee, killed eleven, injured one, and caused damage within a radius of several miles. The blast created a mushroom cloud tall and was heard as far as away. 1983 Newark explosion On 7 January 1983, an explosion of the Texaco oil tank farm was felt for 100–130 miles from Newark, New Jersey claiming 1 life and injuring 22–24 people. Minor Scale and Misty Picture Many very large detonations have been carried out in order to simulate the effects of nuclear weapons on vehicles and other military material. The largest publicly known test was conducted by the United States Defense Nuclear Agency (now part of the Defense Threat Reduction Agency) on 27 June 1985 at the White Sands Missile Range in New Mexico. This test, called Minor Scale, used of ANFO, with a yield of about . Misty Picture was another similar test a few years later, slightly smaller at . PEPCON disaster On 4 May 1988, about of ammonium perchlorate (NH4ClO4) caught fire and set off explosions near Henderson, Nevada. A natural gas pipeline ruptured under the stored ammonium perchlorate and added fuel to the later, larger explosions. There were seven detonations in total, the largest being the last. Two people were killed and hundreds injured. The largest explosion was estimated to be equivalent to . The accident was caught on video by a broadcast engineer servicing a transmitter on Black Mountain, between Henderson and Las Vegas. Arzamas train disaster The Arzamas explosion, known also as Arzamas train disaster, occurred on 4 June 1988, when three goods wagons transporting hexogen to Kazakhstan exploded on a railway crossing in Arzamas, Gorky Oblast, Soviet Union. Explosion of 118 tons of