This thesis examines the role of hyperlocal digitally mediated grassroots actors in unincorporated communities in crisis governance contexts, utilizing the January 2025 Eaton Canyon Fire in Altadena, California, as a case study. Due to Altadena, California's fragmented, unincorporated status, residents turned to digitally mediated, hyperlocal grassroots groups to coordinate warnings, share information, and organize recovery efforts. Drawing on a dual typology—structural (Emergent Groups, Community-Based Initiatives, Boundary-Spanning Initiatives) and functional (sensor, trusted node, agent)—the study analyzes how citizen roles evolved across the crisis timeline: preparedness, response, and recovery (Houston et al., 2015). Using a qualitative research methodology, this study assessed how hyperlocal digitally mediated grassroots actors contribute to crisis governance in an unincorporated, hyperlocal community, using a case study design. The findings reveal that informal digital actors not only filled coordination gaps left by formal agencies but also engaged in emotional support, symbolic recovery, and cross-platform translation. This study contributes to the literature on crisis governance, digitally embedded hyperlocal, grassroots actors, and crisis informatics by showing how platform-based actors in structurally ambiguous jurisdictions become essential to adaptive emergency management. It indicates that citizen-led initiatives, through their temporal fluidity and digital credibility, form the backbone of informal governance in high-risk, under-governed contexts. The thesis concludes with recommendations for integrating grassroots platforms into formal emergency planning frameworks.

Pagliarin, S., Van Meerkerk, I.F.
hdl.handle.net/2105/78040
Public Administration
Erasmus School of Social and Behavioural Sciences

Abdalla, T.H.H. (2025). Digital governance and hyper-local, grass-roots response in the crisis governance of the 2025 Eaton Fire. In Public Administration.http://hdl.handle.net/2105/78040