Why does people suffer from trauma after natural calamity?

People suffer from trauma after natural calamities due to the intense psychological and emotional impact of experiencing life-threatening events, loss of loved ones, and the destruction of homes and communities. The suddenness and unpredictability of such disasters can leave individuals feeling helpless and overwhelmed. Additionally, the aftermath often brings ongoing stressors, such as displacement, financial loss, and uncertainty about the future, which can exacerbate feelings of anxiety and depression. This combination of factors can lead to long-term psychological effects, including post-traumatic stress disorder (PTSD).