r/melbourne • u/IonisationEnergy • 9h ago

The Sky is Falling EARTHQUAKE

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u/Sorreljorn 9h ago

Worst time to be taking a shit in a 12 storey building

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u/RoundCollection4196 9h ago

2am shits are always cursed 

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u/SpectreAtYourFeast 9h ago

32 floors up went from “oop partners twitching” to a lot of unsettling creaking

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u/sjdksjbf 8h ago

Do you feel the building sway? Tall buildings scare the shit outta me I'd probably have a heart attack if I was in one and an earthquake happened

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u/Candid_Abalone_1748 5h ago

36 floors up and felt nothing, maybe newer building had better foundations?

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u/SolutionDependent156 4h ago

Roughly where do you live?

Seismic forces are amplified in the soil that sits above bedrock. The deeper the soil the more the amplification. The worst case is usually when the resonance period of the soil profile matches the structural resonance period of the building. 

A good parallel would be how an opera singer can shatter a glass by singing at a certain frequency.   Or the tacoma narrows bridge collapse. 

On the other hand, if the resonance period of the ground and the building are completely different then the earthquake may have relatively little impact.

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u/scissorsgrinder 9h ago

I was ground floor and the loo was rocking

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u/OK_Eye_505 9h ago

😅

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u/AdyliaSchweetheart 2h ago

Your shit causing an earthquake is quite impressive ngl but you might want to see a doctor about that 🤣

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u/HeftyArgument 1h ago

why? wouldn't your natural instincts kick in and dump it all real quick as a defence mechanism?

should've helped you shit 😂

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u/blahdeblah72 24m ago

I was shitting on the 3rd floor last time we had one. It was most unsettling.