AZF (French initialism for AZote Fertilisant, i.e. nitrogen fertiliser) was the name of a chemical factory in Toulouse, France, which exploded on 21 September 2001. The blast was equivalent to 20-40 tons of TNT, measuring 3.4 on the Richter scale, and was heard 80 km away (50 miles). The explosion caused 29 deaths, with 2,500 seriously wounded, and 8,000 light casualties. Damages already paid by insurance exceed 1.5 billion euros.
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