This study, entitled "Exploring the Psychological Adaptation of Sudden Bereavement Due to a Catastrophic Firecracker Explosion at Barangay Bigaa" aimed to determine the psychological adaptation of individuals who experienced sudden bereavement due to firecracker factory explosion incident at Barangay Bigaa. The researchers will focused on comprehending the coping mechanisms of residents of barangay bigaa who experienced sudden loss of their loved ones caused by unexpected firecracker explosion. The researchers used thematic analysis to examined the responses of participant affected by the firecracker explosion and will focused on their psychological process such as the development of coping mechanism, coping strategies, resilience, and adjustment to normalcy after the sudden loss of their loved ones. The findings of this research will enhance the understanding regarding the process of psychological adaptation of individuals who experienced the catastrophic firecracker explosion. This understanding can be the foundation for the development of effective support system and interventions for future crises.