The top five events causing disruption to supply chains in 2014 were Typhoon Halong in western Japan with a revenue impact of more than $10bn, severe flooding in Long Island, New York, with a revenue impact of more than $4bn, Typhoon Rammasun in China and Vietnam, which caused a revenue impact exceeding $1.5bn, the Taiwan gas explosions and their $900m impact, and the Intel hazardous chemical spill in Arizona, which also had a revenue impact that topped $900m.