A producer of hydroxylamine (HA) has a warehouse containing 12,060 kg of HA, which can decompose explosively under certain conditions (assume 2% efficiency). An experimentally measured value for the HA heat of decomposition is 430 cal/g. Assuming that this entire amount of HA explosively decomposes with an effect similar to a TNT detonation, estimate the explosion overpressure and structural damage at a plant building 50 m from the exploding HA warehouse and a residential house at 500 m distance.