The Los Alfaques Disaster was a road accident and tanker explosion which occurred on 11 July 1978 in Alcanar, near Tarragona, in Spain. A tanker truck loaded with 23 tons of highly flammable liquefied propylene experienced a fire and subsequent BLEVE (boiling liquid expanding vapor explosion) while directly in front of the Los Alfaques campsite, located between the road and the sea. 217 people (including the driver) were killed and 200 more were severely burned.