Networks in crisis: Measuring ethnic stratification and organizational reach post-disaster

This study investigates the extent of ethnic stratification within social networks in a disaster-affected community. Prior research highlights disparities in resilience capacities across racial and ethnic groups, often attributed to social isolation and limited access to resources. Utilizing a novel survey of 240 residents in Farmburg, California (pseudonym), we analyzed individual and organizational network data to examine three key aspects of connectivity: 1) resident-to-resident ties, 2) resident-to-organization ties, and 3) organizational reach across ethnic groups. Findings reveal significant ethnic homophily in resident networks, with a predominance of intra-ethnic ties. Furthermore, the study identifies variations in the extent to which different types of organizations bridge these ethnic divides. Preliminary analysis suggests that healthcare and emergency response organizations may exhibit lower levels of inter-ethnic connectivity compared to other types of organizations. By quantifying these social divides and their impact on organizational reach, this study provides crucial insights for developing more equitable and inclusive disaster resilience strategies that effectively address the needs of all community members.