What event in 2011 caused manufacturers in several industries worldwide to wait 6 months or longer to see their supply chains working normally again?

On March 11, 2011, a 9.1 magnitude earthquake occurred a couple hundred miles from Tokyo in the ocean. This earthquake caused a huge tsunami (30 feet high) that damaged large coastal areas in Japan, including several nuclear reactors and factory centers for major corporations like Toyota, Honda, Nissan, Toshiba, Sony, Canon, etc.