Whakakiia te rerenga e whai ake nei: I te 11 o Oketopa 1918, i patua te takutai ki te hauauru o Puerto Rico e te
he ruu nui i puta ai he tsunami. Ko te ruu o te tau 1918 i puta mai i te he o mua o te taha maui-taha tata ki te Mona Passage. I te tau 1953, i pāngia a Santo Domingo, Dominican Republic e te ru o Santo Domingo. Ko te rohe whakaheke (Puerto Rico Trench) kaore i pakaru i roto i te 200 tau, he tino awangawanga ki nga geophysicists, na te mea e whakapono ana ratou na te mea nui o te kaupapa.