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    Mexiko-Stadt sinkt so schnell, dass man es vom Weltraum aus sehen kann

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    1. newleafkratom on

      „…In some parts it is happening at an average rate of 0.78 inches (2 centimeters) a month, according to NASA’s newly released report, such as at the main airport and the iconic monument commonly known as the Angel of Independence.

      Overall that means a yearly subsidence rate of about 9.5 inches (24 centimeters). Over the course of less than a century, the drop has been more than 39 feet (12 meters)….“

    2. Mr_Stealy_ on

      Yeah, that’ll happen when you build a city in a lake…..

      „other areas for city building are available“. 

    3. yanocupominomb on

      And don’t forget the constant water issues.

      That’s why I moved out.

    4. Dnfire17 on

      The technology used to measure ground displacement from space is called InSAR. This is actually my field of work and i’ve processed data over Mexico city several times using Sentinel data. Some areas are sinking even more rapidly than what’s stated in the article, upwards of 30 cm per year.

    10. Isosorbide on

      Scientifically, what are the actual consequences of this? If a city is sinking, what’s the potential outcome that needs to be mitigated against? Is it damage to infrastructure, is it the future implications of a drained aquifer, or what?

      Put more briefly, why does it matter that the city is sinking? What are the dangerous consequences?

      Or is it just more of an interesting bit of trivia about whaty happens when you build a city in a lake bed.

    11. vanityinlines on

      I only knew about Italy and Florida. Are there other areas of the world that are currently sinking?

    12. math-yoo on

      I visited last year. All the older buildings are crooked and I was shorter.

    13. Briantastically on

      Every time I see “can be seen from space” my first thought is how the optics and sensors are what is really being measured, and the object isn’t relevant.

    14. MiloAstro on

      Seems like Mictlantecuhtli is not pleased at the lack of sacrifice over the last five centuries.

    17. Gloorplz on

      I’m not an astronaut, but I’d assume Mexico city could be seen from space before it started sinking.

    19. quickasafox777 on

      Starting to think the Spanish made some poor decisions in the region (destroying a massive city built into a lake, draining the lake and then building another heavier city on the remains of the lakebed)

    21. user0987234 on

      Need some Dutch expertise!

      Start with lots of caissons and platforms to shore up foundations.

    22. tmfkslp on

      How do you still manage to have functioning water and sewer with that rate of collapse? Seems like any underground piping would be automatically fucked. Genuinely curious if anyone has an answer.

    23. AmbientSociopath on

      Are there lots of sinkholes in Mexico City? just wondering

      It seems like it hasn’t even reached terminal speed for decent into the ground which is a disturbing thought.

    26. Bushboy2000 on

      Iirc, the entire population of Australia lives in Mexico City.

      Same for Tokyo or close to it.

    29. ModeatelyIndependant on

      Mexico isn’t able/willing to stop pumping water from under the dry lake bed. If the city could find another source, the sinking could slowdown or or even reverse.

    32. No_Worldliness_7106 on

      Sinking so „quickly“ it can be seen from space is like saying „I’m walking so fast I can be seen from a block over“. It doesn’t make sense. It is sinking at such a widespread scale that the sinking is noticeable, not the pace. If it sank over the course of 10,000 years it would still be visible from space if we had an observer to watch that long or keep records and photos.

    35. 4RCH43ON on

      Subsidence is a major global issue for many large cities and agricultural regions that have overdrawn their water table, often leading to irreversible aquifer collapse.

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