Unraveling the Ground Subsidence Disaster Caused by Rock Salt Mining in Maceió (Northeast Brazil) from 2020 until Rupture Using Sentinel-1 Data

Abstract

Abstract Maceió, the capital of Alagoas, grapples with subsidence, a geophysical challenge rooted in coastal influences, anthropogenic activities, and geological factors. The consequences, ranging from structural damage to increased flood vulnerability, impact communities, notably in neighborhoods like Bebedouro and Farol. Addressing subsidence demands a comprehensive approach, integrating geotechnical engineering, urban planning, and environmental management. The dataset reveals a nuanced relationship between subsidence and urban parameters. High-density urban areas bear a disproportionate burden, emphasizing the intricate link between urbanization and ground movement. The influence of topography challenges assumptions, indicating that areas with steeper slopes exhibit lower rates of ground movement. Temporal analysis underscores the dynamic nature of subsidence, influencing the spatial distribution of occupied areas. Recognizing subsidence as an evolving phenomenon allows for adaptive strategies in dynamic urban planning. This aligns with existing literature, emphasizing the need for adaptive planning, resilient infrastructure, and targeted interventions. In conclusion, Maceió's subsidence challenges necessitate a geotechnically informed, nuanced approach, considering local variations, community engagement, and temporal dynamics. Collaborative efforts between stakeholders are crucial for sustainable solutions and urban resilience in the face of subsidence-induced complexities.