Mexico City is sinking up to 14 inches per year, satellite images show
space.com May 6, 2026

Mexico City is sinking up to 14 inches per year, satellite images show

AI-summarised brief · reviewed before publication

Mexico City is sinking at a rate of up to 14 inches per year due to groundwater pumping and urban sprawl compressing sedimentary layers. The NASA-ISRO Synthetic Aperture Radar satellite, NISAR, has captured images of the city's subsidence using its dual-frequency band radar. The satellite's mission is to track surface changes on Earth in real-time. NISAR's images show subsiding areas in blue, with dark blue representing parts that have subsided by over 0.5 inches.

💡 Why It Matters

  • · NISAR's ability to detect land subsidence in densely vegetated regions will help track the compounding effects of land subsidence and sea level rise.
  • · Mexico City isn't alone — dozens of megacities built on soft sediment or overdrawing aquifers face the same fate.
  • · Real-time satellite data transforms subsidence from a slow invisible crisis into something planners can measure, map, and act on before infrastructure fails.