<prompt> Qedela umusho olandelayo: Isiteshi savalwa amasonto amathathu kulandela  <response>: izikhukhula ezisogwini olusempumalanga ngoJanuwari 31 1953 lapho amapulatifomu nezindlu zezinjini zigcwala amanzi angamamitha amane. Isisebenzi sezimpawu saphunyukwa amahora angu-21 kwaze kwaba yilapho sitholakala ngesikebhe. Lapho isitebele sisuswa, kwatholakala izidumbu zezingulube ezingu-49, amathole amabili nezinkukhu ezingenakubalwa kanye nezinkuni ezivela egcekeni lezinkuni eliseduze nezinye izinto ezihlobene nezikhukhula. 