Quote from: Yamane_Keto on Today at 07:03:20 PM

I keep them in a waterproof and fireproof notebook, but is there any proof of the efficiency of this Metal Seeds and/or notebooks with earthquakes? Does it bear the violent shocks?

It depends what type of metal you are using, but good stainless steel washers or thick plate blocks will withstand earthquakes, water and high temperatures.
Notebooks and laptops can survive only if you are using quality military protection brands like Thinkpad for example, but I can't be 100% sure what will happen f building crumbles.
Good Thinkpads are known to survive fire, water and fall on ground, but I wouldn't keep digital seed phrase in any laptop.

Quote from: Yamane_Keto on Today at 07:03:20 PM

What are the solutions, in your opinion, if an earthquake occurs? Or in other words, the best solution if you are in an area active in earthquakes and tsunamis.

Best protection is to use passphrase and distribute seed phrase backups in multiple locations, cities or even countries, and multisig setup is best for larger amount of coins.