Coastal Erosion in the Aftermath of the Mount Pinatubo Eruption: An In-Depth Study of the Socioeconomic Conditions in Barangay Sto. Niño, Municipality of San Felipe, Zambales

This study investigates the socioeconomic impact of coastal erosion in Barangay Sto. Niño, Municipality of San Felipe, Zambales, following the Mount Pinatubo eruption. The eruption in 1991 significantly altered the coastal landscape through the deposition of volcanic materials, leading to long-term geomorphological changes that intensified shoreline retreat and erosion. Using a mixed-method approach combining field observation, household surveys, and key informant interviews, the research examines the interplay between environmental degradation and the livelihood, housing stability, and adaptive capacity of local residents. Findings reveal that coastal erosion has resulted in loss of agricultural land, displacement of families, and declining fishing productivity, which collectively weakened the community’s economic resilience. Moreover, the study highlights the limited access to government support and sustainable livelihood programs, underscoring the need for integrated coastal management strategies and community-based adaptation initiatives. The results emphasize the urgent call for comprehensive interventions addressing both the environmental and social dimensions of post-eruption recovery and resilience-building in coastal communities.