The study on the impact of disasters on the mental health is a relatively recent research field. Despite this, there are a significant number of studies showing the epidemiological data of the psychiatric pathology present in survivors and those affected by disasters This review attempts to summarize current knowledge and give an integrated vision of the effects of the disasters on the mental health, either natural or manmade disasters, as well as identify the effects prevalence and differences in each type of disaster. Post-traumatic stress disorder, depression, anxiety disorders, suicidal ideation or suicide attempts are some of the pathologies observed in people affected by disasters and with an ineffective adaptation, jointly with an increase in the consumption of toxic substances, generating an additional public health problem within another problem. The consequences will be different depending on the type of population and its cultural pattern, sex and gender of the affected people and type of disasters.