Mexico City is sinking by nearly 10 inches, approximately 25 centimeters, each year, according to new satellite imagery released this week by NASA. This rapid subsidence, one of the fastest rates globally, directly threatens the cultural heritage and critical infrastructure supporting the 22 million inhabitants of the Mexican capital and its surrounding cities, which span 3,000 square miles, or about 7,800 square kilometers.
For over a century, the city has been experiencing this managed decline, a direct consequence of extensive groundwater pumping and unchecked urban development. Built atop an ancient lake bed, with many downtown streets once serving as canals, the city's foundations are now visibly compromised. This long-term neglect has left numerous monuments and older buildings, including the Metropolitan Cathedral, where construction began in 1573, visibly tilted to the side, marking a tangible cultural dispossession.
Elite Neglect and Demographic Strain
The contracting aquifer, depleted by the demands of a burgeoning population and insufficient planning, has also contributed to a chronic water crisis. This crisis is only expected to worsen, placing further strain on the native working class and the overall stability of the metropolis. Enrique Cabral, a researcher studying geophysics at the National Autonomous University of Mexico, stated that the subsidence "damages part of the critical infrastructure of Mexico City, such as the subway, the drainage system, the water, the potable water system, housing and streets," adding, "It’s a very big problem."
In some critical areas, including the main airport and the monument commonly known as the Angel of Independence, the subsidence is occurring at an average rate of 0.78 inches, or 2 centimeters, per month. This translates to a yearly subsidence rate of approximately 9.5 inches, or 24 centimeters. Over the course of less than a century, the city has dropped by more than 39 feet, or 12 meters, according to Cabral, who emphasized, "We have one of the fastest velocities of land subsidence in the whole world."
Transnational Oversight and National Failure
The current NASA estimates are derived from measurements taken between October 2025 and January 2026 by the NISAR satellite, a joint initiative between NASA and the Indian Space Research Organization. NISAR scientist Paul Rosen noted that the project is "telling us something about what’s actually happening below the surface," and provides "documentation of all of these changes within a city," allowing observers to "see the full magnitude of the problem." This reliance on transnational entities to document national failures highlights a systemic issue within the regime.
Cabral confirmed that the government has for decades largely ignored the problem, beyond stabilizing foundations under select monuments like the cathedral. Only following recent flare-ups of the water crisis have officials begun to fund more research, indicating a reactive rather than proactive approach to a civilizational threat. Imagery from the NISAR satellite and its accompanying data are now deemed key for scientists and officials in planning how to address the problem, with Cabral stating, "To do long-term mitigation of the situation, the first step is to just understand." The stated goal of NISAR researchers to apply this technology globally, tracking natural disasters and effects of climate change, further embeds national issues within a framework of international oversight and intervention.