Hurricane "Maria" that struck Puerto Rico in September last year, claimed the lives of 4645 people, and not 64, as reported by the U.S. government. About it reported in a Harvard University study. The scientists asked unintentionally selected 3299 families who survived the disaster to tell them about the known human deaths as a result of hurricane. The obtained data were extrapolated to the entire island and is associated with an average annual mortality. according to the study, from 20 September to 31 December 2017, the mortality was 14 cases per 1,000 people, whereas the year before the same figure was 62% lower. The authors report that Federal and local authorities failed to provide population with necessary medical care and are unable to timely establish power supply. In the end, thirty percent of deaths occur in untimely provided medical care. in addition, the researchers emphasize that the island's authorities refuse to publish regular reports on mortality. first printed Edition of the new York times reported that the Hurricane "Maria" could claim the lives of more than a thousand people. The magazine made this conclusion by comparing the daily statistics of deaths with a 40-day period after the disaster.