Based on the case of the Great East Japan Earthquake,this paper analyzes the conduction process from the perspective of conducting secondary disasters,as well as analyzes the main path of secondary disaster conduction from two aspects: natural path and social path,the natural path includes geological characteristics,wind direction,ocean currents and animal migration,while the social path includes the ineffective government's emergency response mechanism,media influence on public opinion and the transnational trade. And then put forward disaster management optimization measures from the aspects...
