Can nuclear device work undetected put very deep in sea/very deep below earth causing earthquake/tsunami wave?
The tsunami question makes me think hard…I’ve thought about this many times before. A nuclear explosion starts as a radiative shock which degenerates into a supercritical shock, and so on, until all that remains is a volume of gas surrounded by an expanding train of sound waves. In water, the question would come down to the equilibrium volume of water vapor produced at the depth of the explosion. That would primarily depend on the water pressure at that depth and the total yield, I think. I simply don’t have the expertise to calculate that figure, but I suspect the total displacement would be relatively small, even for the largest weapons ever fielded. I suspect little of the energy released would ultimately be partitioned into work (mechanical lifting)…thus any tsunami would probably be small and of a relatively short wavelength. Very interesting problem to consider.
