This research aims to investigate how Zakat is disbursed to aid in disaster relief efforts and its role in humanitarian efforts during and after disasters, using the case study of the 2018 Lombok earthquake in Indonesia. Data for this study were collected through interviews with BAZNAS managers using a semi-structured interview method. The steps in analyzing interview data involved data coding, identifying themes or patterns, developing a narrative, and developing a theory. The main findings of the research indicate that the distribution of Zakat for disasters has sustained impacts on the environment, social aspects, and the economy of affected communities. It highlights the crucial role of Zakat in disaster mitigation for humanitarian purposes. The theoretical implications of these findings affirm the critical role of Zakat in disaster mitigation, an aspect that has not been fully explored in previous academic literature. These findings contribute to the development of Islamic social finance by highlighting the role of Zakat in disaster management and exploring its potential application in humanitarian efforts and disaster mitigation. The practical implications for the government include enhancing collaboration between BAZNAS and disaster relief agencies and improving public understanding of Zakat principles for humanitarian purposes and disaster mitigation.