Overview
- The collapse occurred at the Qixin Road–Li’an Road intersection in Minhang during excavation for the Jiamin metro line and was captured on security video as workers fled.
- Municipal crews sealed off the area, launched geotechnical inspections, evacuated nearby offices and apartments, and began pouring concrete to stabilize the ground.
- Initial official information points to localized seepage weakening the subsurface, with the exact cause and any responsibility still under review.
- Shanghai’s soft alluvial soils and intensive underground works heighten subsidence risks, and local statistics attribute 72% of 2017–2023 sinkholes to human activity.
- Work is underway to restore circulation after safety checks, and authorities note a similar Minhang collapse in January 2024 tied to a drainage pipe failure.