Workers assembling fourth generation Toyota Prius cars on the production line at the company's Tsutsumi assembly plant in Toyota City, Aichi prefecture, on Dec. 8, 2017. Toshifumi Kitamura/AFP via Getty Images
Automakers Toyota and Nissan have paused operations at plants in northern Japan after a magnitude 7.4 earthquake struck the northeast coast off Fukushima late on March 16.