How do buildings collapse in a downward direction during earthquakes?

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Example: [https://youtube.com/shorts/t1nC0AOP_X4?feature=share](https://youtube.com/shorts/t1nC0AOP_X4?feature=share)

I don’t get it. The Physics of it. And also how would one prevent this?

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Anonymous 0 Comments

The ground jiggles left to right. And the building is supposed to act like a Jello Flan. It’s supposed to wiggle and warp.

Because of the jiggles, the first 2-3 floors have soo much side to side motion that they buckle and break. And the building squashes those first couple of floors.

Once a building starts moving in one direction without a foundation… It just keeps moving.

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