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Title:: Analysis of the Spatial and Temporal Characteristics of Public Opinion about Yunnan Tonghai M_S5.0 Earthquake in 2018 Based on Sina Micro-blog

Author(s):: CAO Yanbo; (Yunnan Earthquake Agency,Kunming 650224,Yunnan,China)

Keywords:: Tonghai M_S5.0 earthquake; Sina Micro-blog; temporal and spatial distribution characteristics; emotional analysis

摘要:: 基于新浪微博数据,通过数据清洗、分类和挖掘,分析2018年8月13,14日云南省通海县2次5.0级地震舆情信息时空演变规律。研究结果表明:本次地震后微博活跃量总数激增,灾情类别主要集中于人的反应、器物反应方面,约占总数的79%; 微博日活跃量与时间的关联度明显,震后出现多个波动; 微博的数量和空间分布与距离震中远近密切相关,遵循距离衰减效应; 地震灾区民众以负面情绪为主,由于地震期间谣传传播,恐慌、悲伤、疑惑情绪进一步加重。

Abstract:: Through cleansing,classification,and excavation the data of Sina Micro-blog,we analyzed the spatial and temporal characteristics of public opinion information of Tonghai M_S5.0 earthquake on Aug.13 and Aug.14 in 2018.The disaster information is divided into human reaction and utensil reaction,which accounts for more than 79% of the amount.The correlation between the daily activity of micro-blog and time is obvious.After the earthquake,there are many fluctuations of the daily activity of micro-blog.The number and spatial distribution of micro-blog are closely related to the epicentral distance,and follow the distance attenuation effect.As rumors spread during the earthquake,people in the earthquake-stricken areas were mainly in negative mood,and the mood of panic,sadness and doubts increased.