05/06/2026
New York City is gradually sinking under its own enormous weight. With more than one million structures across its five boroughs, the city is one of the heaviest urban areas on Earth. Together, those buildings weigh an estimated 1.68 trillion pounds (762 billion kilograms) roughly equivalent to 1.9 million fully loaded Boeing 747s.
Scientists have confirmed that this massive load is driving a process called subsidence, the slow sinking of land over time. On average, New York is sinking 0.04 to 0.08 inches (1–2 mm) per year, with some neighborhoods sinking as fast as 0.18 inches (4.5 mm) annually.
The buildings aren’t the only factor. Many areas sit on softer soils or artificial fill that compress more easily. Groundwater movement and lingering effects from the last Ice Age are also contributing to the gradual settling.
While a few millimeters per year might seem small, New York faces a double threat: sea levels are rising faster than the global average. As the land sinks and oceans rise, flooding risks increase for low-lying coastal neighborhoods, critical infrastructure, transportation systems, and waterfront communities.
New York isn’t alone. Cities like Jakarta, Shanghai, Mexico City, and parts of Tokyo are experiencing similar subsidence.
Beneath the streets and skyscrapers, the ground is slowly shifting, a powerful reminder that even the world’s most iconic cities are still shaped by geology.
Did you know New York is sinking? Which other major cities do you think face the same challenge? Share your thoughts below! 👇
Sources: "The Weight of New York City: Possible Contributions to Subsidence From Anthropogenic Sources," published in Earth's Future.