For context it's sinking at 0.1 cm / year, versus 50 cm / year in Mexico City and 20 cm / year in Jakarta.
Now I want an internet connected accelerometer for major cities. That's wild! Is that right? That's so much!
Does a skyscraper cause the whole island of Manhattan to sink, or just the land directly underneath it? If the latter, would we expect the result to be a bowl-like structure where skyscrapers have pushed the middle down but the edges remain as they were? (Unless the edges also have skyscrapers on them I guess).