“We’ve had 120-something years of recorded subsidence in our city,” said Enrique Cabral-Cano, a geophysicist at the National Autonomous University of Mexico and author of the research.

Parts of California’s water-stressed agricultural regions have dropped by nearly 30 feet, and some places in Mexico City are sinking 20 inches every year. “Subsidence is a silent problem,” said ...

Cities from New York to Houston are sinking into the ground little by little, putting an estimated $109 billion of property at risk of flooding.

A new study published in the journal "Nature Cities" reported that the city is sinking around a millimeter per year.