Quote:
Originally Posted by Retiree
I think the moving part is normal and how the earthquake protection works. Kind of like bridges, which also have to be flexible, not to collapse. Skyscrapers all over the world move due to strong wind even, around 1m in every direction.
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Movement is normal, if it doesn't move too much.
But the underground is important to.
And you saw in Puerto Vallarta the most movement where there has been swamps.
Mexico City also has that problem. And Bangkok is also build on swamp.
I saw 4 same building in Mexico City in a row, 3 had nothing, 1 collapsed.
Mexico City Was Built on an Ancient Lake Bed.
That Makes Earthquakes Much Worse.
https://www.nytimes.com/interactive/...d-geology.html