The U.S. Embassy in Japan had advised evacuation of all American nationals to outside a 80 kilometers radius from the Fukushima power plant on 16 March 2011, [https://news.yahoo.com/s/yblog_theenvoy/20110316/ts_yblog_theenvoy/u-s-urges-evacuation-from-50-mile-zone-around-japan-nuclear-plant U.S. urges evacuation from 50-mile zone around Japan nuclear plant – Yahoo!