This research explores how individual factors, including intrinsic motivations, capabilities, and specific characteristics, shape both individual disaster preparedness and volunteering, representing private and altruistic coproduction in disasters. Analyzing data from 5,681 respondents in the 2022 US National Household Survey, logistic regression results reveal that group belonging and self-efficacy, identified as citizens’ intrinsic motivations, positively correlate with the likelihood of engaging in disaster preparedness (emergency plans, em...