This document discusses disaster management and defines disasters as occurrences, either natural or man-made, that cause human suffering and needs that cannot be alleviated without assistance. It outlines different types of disasters including natural, environmental, complex emergencies, and pandemics. Disaster management aims to reduce vulnerability through planning, preparation, response, relief and recovery. The National Disaster Management Act of 2005 establishes authorities at the national, state and district levels to manage disasters according to objectives of prevention, mitigation and response.