Mexico City Federal District is sinking so quickly, it can easily be seen from outer space.
One of the world’s most sprawling and populated urban areas, at 3,000 square miles (about 7,800 square kilometers) and some 22 million people, the Mexican capital and surrounding cities were built atop an ancient lake bed. Many downtown streets were once canals, a tradition that continues in the rural fringes.
AP reports that Mexico City is sinking by nearly 10 inches (about 25 centimeters) a year, according to new satellite imagery released this week by NASA, making it one of the world’s fastest-subsiding metropolises.
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Satellite photos by NASA show that Mexico City is sinking nearly 10 inches per year, making it the fastest-subsiding city on Earth.
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