Agents of S.H.I.E.L.D.'s Quake may not be the Destroyer of Worlds after all. Though Daisy was pegged as the reason Earth was destroyed in Season 5, she has never shown the power to swing such a feat. However, the show already introduced a character powerful enough for such a cataclysmic event all the way back in Season 1: Franklin Hall, aka Graviton.
Hall debuted in the third episode of Season 1, where he put his life on the line to destroy an element called gravitonium. Even a small amount of gravitonium is enough to toss a launch a tractor-trailer, so Hall decided to destabilize the element after his nemesis Ian Quinn found a large quantity of it.
"We can't let anyone have control of this. That's why I'm here: to bury it at the bottom of the ocean," he told Coulson when the S.H.I.E.L.D. agent showed up to rescue him. According to Fitz and Simmons, Hall was in control of enough gravitonium to "sink the place" -- the place being an entire island. So, when Hall described it as "far too powerful for you, for him, for anyone," he may have been right.
As Hall got into the reasons behind his decision to destroy the gravitonium (and himself), his word choice took an interesting turn. Describing Quinn, he said, "He never gives a thought to the friends, ecosystems, future generations left ruined in his wake." Of course, the enemy of his enemy was not his friend either: "S.H.I.E.L.D. is just as guilty of the same thing! Experimentation without thought of consequence! Your search for an unlimited power source brought an alien invasion."
Here, Hall's words almost seem predictive of what's to come. Hall refers to "future generations left ruined," which is just what Coulson and his team discover when they arrive in the year 2091. The Lighthouse's society, as they see it, is humanity decayed; the handful of survivors from Earth's destruction are forced to fight and kill one another just to stay alive on dead rock floating through space.
What's more, Hall references the "alien invasion" from Avengers, where Nick Fury and S.H.I.E.L.D. inadvertently brought the Chitauri to Earth by experimenting on the Tesseract. He infers that S.H.I.E.L.D. could do something similar if they come into possession of the gravitonium or any other powerful force they obtain -- which is the conceit of Season 5, where Daisy "destroyed the world" and brought in the rule of the tyrannical Kree.
Of course, his most damning line of dialogue seems as though it could describe what we've seen of Season 5 so far: "I see the future, Mr. Coulson, and it's a catastrophe."