ok so i asked chatGPT:
How deep are the remains of the Titanic?
> 3.800 meters (12,500 feet)
What is the water pressure at that depth?
>38.000 kpa, or 400 times the atmospheric pressure at sea leve.
If i had a theoretical object that could make such pressure at sea level, how much that object should weight?
>After some calculation, the result is that the object should weight 3877 tonnes (17,623,636 big macs)
That pressure is being applied in all directions underweater.