Dee a n'ihu maka paragraf a - N'oge 2011 ala ọma jijiji na n'ihi 15+ mita tsunami na n'ebe ọwụwa anyanwụ nke ụsọ oké osimiri Japan
N'afọ 2011, ụlọ ọrụ ike nuklia nke Fukushima I merụrụ isi atọ n'ime ụlọ ọrụ isii ya mgbe sistemụ jụrụ oyi nke mberede dara n'ihi oke ọnọdụ karịrị atụmatụ. Nke ahụ bụ, ụlọ ọrụ Fukushima echeghị maka tsunami dị n'elu na nhazi mbụ ha. Ihe ndị a bụ General Electric BWR-3 na BWR-4 reactors n'ime Mark I containment designs, nke a na-ahụkarị na United States. Otú ọ dị, ụdị osisi ndị a nile nwere atụmatụ dịgasị iche iche n'ihi iwu, mmasị onye ọ bụla, na ebe a na-ewu ya. N'afọ 1995, Sandia National Laboratories mere atụmatụ na otu BWR-3 na BWR-4 reactors na United States nwere isi mmebi ugboro n'etiti 10−4 na 10−7.