Risk Analysis And Emergency Countermeasures Of Earthquake Online Public Opinion

With the development of democratic politics and the promotion of science and technology,people have begun to pay more attention to natural and social events,and have put forward their views and opinions on major social platforms.When a topic is frequently searched,it is easy to form online public opinion.China is a country with frequent earthquakes,which has caused a lot of earthquake online public opinion.Earthquake online public opinion has the characteristics of uncertainty of outbreak,breadth of subject,indepth topic,and continuity of dissemination.If the government does not respond to the earthquake in time,and if there are omissions in the disposal work,it will receive criticism from the Internet,which can lead to public opinion risks,social instability,and bring many challenges and pressures to the government’s management.At present,there are few scholars at home and abroad specializing in the study of earthquake online public opinion,which highlights the necessity and significance of the research on earthquake online public opinion in this paper.Therefore,this paper mainly explores the evolution law of earthquake online public opinion,and its public opinion risk evaluation,and proposes emergency countermeasures under the public opinion risk,aiming to provide ideas for the government to deal with the earthquake online public opinion problem.This paper focuses on the research on earthquake online public opinion.First,it narrates from the research background and significance,research status,research content,research method and technical route.Secondly,it defines the concepts of earthquake online public opinion,public opinion risk assessment,and public opinion emergency management,and clarifies the research theme of this paper.Theories such as spiral and group polarization and public opinion crisis management provide support for this research.In the next step,this paper focuses on the evolution mechanism of earthquake online public opinion,builds an earthquake online public opinion evolution model based on system dynamics,selects the 2018 Yibin earthquake of magnitude 5.7 in Sichuan Province,and divides the evolution stages of earthquake online public opinion.It analyzes the degree of effect from the four perspectives of earthquake,netizens,media and government,and simulates the online public opinion,which aims to find out the key factors affecting public opinion and lay the foundation for the primary selection of public opinion risk evaluation indicators.Then,this paper evaluates the earthquake online public opinion,establishes a risk evaluation model through the selection of indicators,divides different risk early warning levels,and makes an empirical analysis.Finally,this paper integrates the risk levels and public opinion content of each stage,and puts forward relevant emergency countermeasures for the sudden,spreading and dissipating periods of earthquake online public opinion.The results of the study found that the magnitude and degree of damage of an earthquake directly determine the size of online public opinion,and the greater the magnitude of the earthquake,the greater the online public opinion;the media has a greater influence on online public opinion,has a strong dominance,and can control the development of online public opinion.Because every link of the government’s earthquake relief is under the supervision of the public,the government needs to speed up the pace of disaster relief and minimize casualties,so as to gain the support and trust of the public,so as to better prevent and control online public opinion.