基于新浪微博的2018年云南通海5.0级地震舆情时空特征分析*

(云南省地震局,云南 昆明 650224)

通海地震; 新浪微博; 时空分布特征; 情感分析

Analysis of the Spatial and Temporal Characteristics of Public Opinion about Yunnan Tonghai MS5.0 Earthquake in 2018 Based on Sina Micro-blog
CAO Yanbo

(Yunnan Earthquake Agency,Kunming 650224,Yunnan,China)

Tonghai MS5.0 earthquake; Sina Micro-blog; temporal and spatial distribution characteristics; emotional analysis

备注

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。

Through cleansing,classification,and excavation the data of Sina Micro-blog,we analyzed the spatial and temporal characteristics of public opinion information of Tonghai MS5.0 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.