Steve can carry 1,392,860,813,465 pounds
This equals roughly 13.6\text{ trillion megatons of TNT}—more than 270 million times the yield of the largest nuclear bomb ever detonated (Tsar Bomba).
Atmosphere Blown into Space: The thermal pulse would incinerate the atmosphere above the hemisphere of impact and strip large portions of Earth's air into interplanetary space.
Oceans Completely Boiled Away: Boiling every ocean on Earth requires roughly 3.6 \times 10^{27}\text{ Joules}. This explosion carries nearly 16 times that energy, turning every ocean into high-pressure supercritical steam in minutes.
Global Magma Ocean: The energy would melt the Earth's solid continental crust down dozens of miles, transforming the entire surface into a glowing sea of molten rock.
Does Earth Shatter? No. Earth’s gravitational binding energy—the total energy required to blow the planet apart into rubble scattered across space—is approximately 2.24 \times 10^{32}\text{ Joules}. While this blast would completely sterilize the planet and liquify its crust, the planet's gravity would still hold the underlying mantle and core together.