2013年4月20日,四川雅安市发生了7级地震;7月22日,甘肃定西市又发生了6.6级地震,两次地震均给当地造成了巨大损失。在发生重大自然灾害时,有关灾情、救援物资、灾后重建等的灾害信息传播体系显得尤为重要。日本是一个灾害频发的国家,因此,也在灾害信息传播方面积累了丰富的经验,其完备程度在世界上可谓首屈一指。2011年3月11日发生的东日本大地震,与以往大型自然灾害不同的是,网络社交媒体与电 On April 20, 2013, a magnitude 7 earthquake occurred in Ya’an City, Sichuan Province. On July 22, another magnitude 6.6 earthquake occurred in Dingxi City, Gansu Province. Both of these earthquakes caused huge losses to the local area. In the event of a major natural disaster, disaster information dissemination system about disaster, aid supplies and post-disaster reconstruction is particularly important. As a country with frequent disasters, Japan has also accumulated rich experience in disaster information dissemination and its degree of completeness is second to none in the world. The Great East Japan Earthquake, which occurred on March 11, 2011, differs from the previous major natural disasters in that online social media and electricity