Analysis of the 7.20 Zhengzhou Rainstorm Based on Bilibili Video Data

The 7.20 Zhengzhou rainstorm was a serious rainstorm disaster event that caused severe flooding and significant damage to infrastructure, homes, and vehicles, and issues such as the event itself and the emergency response of related departments have triggered continuous and extensive discussions. In this study, we collected live videos from the incident period of Bilibili, and analyzed the video data using text analysis and social network analysis to explore the reflections, concerns and needs of people in the situation of major natural disasters. In recent years, various natural disasters have occurred frequently, and recreating the scenes and analyzing people’s demands from the perspective of self-media is of practical significance to remind people of the lessons learned and improve urban planning strategies.