This research aims to understand how the public responds to the Greater Jakarta flood in January 2026 through social media. The main question asked is how the dynamics of public sentiment will be formed during January 2026 on social media. This study uses mixed methods, combining quantitative analysis of sentiment on social media with qualitative interpretation of public narratives. This analysis is confronted with crisis communication theory, media framing and agenda setting to explain the narrative from informative to political. The results of this study show that during the social media conversation narrative period in January 2026 there were 2 peak conversations, namely January 12 and 24 which showed a shift in conversation patterns that were previously in the form of complaints, netizens' surprise became dominated by socio-political conversations and even indicated imagery with the dominance of certain actors as the main amplifier. The results of this study remind that the effectiveness of disaster communication that occurs is not only on the issue of speed, transparency, and the ability to maintain public trust. The next recommendation is to expand the analysis of public discourse in a qualitative manner, compare flood cases with other disasters in Indonesia, and examine the role of the media and political actors in strengthening or weakening public trust. These findings are expected to be the basis for a more adaptive, participatory, and restore-oriented disaster communication strategy.
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