IMO it goes without saying that Extreme STR is a great explanation for both scenes.
However, it’s still important to keep in mind they are separate scenes and that any candidate needs to satisfy both.
Consider for example Yoda at the peak of his Jedi powers in Star Wars. He’s likely got even less STR than Mr. Scruffy, but if he’s drunk and tries to hit lightly, he could still send his target flying into the horizon by accident.
He also could cause an earthquake if he wanted, by for example using his telekinesis powers to lift a huge boulder up in the air, then slam it violently into the ground.
But he couldn’t cause an earthquake by just stomping the ground…