It's like a bell ringing, only your "bell" in this case is a land mass which takes up most of Turkey. The origin of the first quake appears to have been about 18 km deep. So multiply 18 km x the extent of the damage on the surface to get a picture of how much mass of earth is moving. Today's many small vibrations along the top edge of the plate are due to the first shaking on the other side. Then you have to figure out how much energy, and in what form, it would take to move that much mass. https://sage-answer.com/how-much-energy-is-required-to-move-an-object/#:~:text=On%20earth%20it%20takes%20about%2010%20Newton-meters%20%28N-m%29,of%20energy%20to%20potential%20energy%20in%20one%20second.

Compare it to other energetic sources like nukes, lots of people have wanted to know this, e.g.:

https://www.justintools.com/unit-conversion/energy.php?k1=atomic-bomb-[nuclear-weapon]&k2=joules#:~:text=In%20relation%20to%20the%20base%20unit%20of%20%5Benergy%5D,joules%2C%20while%201%20Joules%20%28J%29%20%3D%201%20joules.

You can translate some forms of energy with this handy calculator, which I highly recommend: https://www.digitaldutch.com/unitconverter/length.htm

Now ask yourself, how important is Finland to NATO that any rational body with nukes or whatever would do this to Turkey? And Syria? Is Turkey on Syria's side or not? Maybe there really are alien overlords of immense power shaking the earth for unfathomable reasons, but I'm going with the simpler explanation that we live on a huge spinning ball which has fractures in its crust and sometimes those fractures rub on each other, or the molten material under the crust shifts around, and it's hard on us relatively teeny tiny surface creatures.