The occurrence of major disasters in the states of Santa Catarina and Rio de Janeiro marked the years 2008 and 2011 in Brazil. Their impacts on elderly people remains understudied in the national literature, especially regarding its repercussions on mental health. By analyzing hospital admissions and mortality and comparing them with the reports ofmunicipal officers, the present article aims to understand the mental health effects suffered by elderly people who lived in areas affected by these water-related disasters. Among the main results, the article highlights the mismatch between the reported effects of the disasters and the official statistics. The analysis didn’t find significant statistical correlation between the statistics and the acute crisis caused by the disasters. On the other hand, the reports of the municipal officers suggest that there existsan alarming and silenced impact of these disasters, concerning the worsening of elderly people’s mental health.