Boom was shot in Kittilä in northern Finland, in a ‘lunar landscape’ on top of a hill where the Finnish armed forces annually disposes of expired explosives. Calculations show that detonation is the least expensive method of disposal. During a weeklong camp a total of 1.2 million kg of explosives are destroyed. The explosion safety area is seven kilometres. The explosion produces a mushroom cloud that reaches up to the lowers clouds and creates a crater about ten metres deep and thirty metres across.