Within seconds of the energy sphere's birth, this area had become an absolute dead zone, boiling and filled with lethal radiation and molten rock.
The crust let out an overburdened groan.
Massive cracks spread like a spiderweb, reaching deep into the mantle. Ancient geological faults were forcibly activated, and stress accumulated over millions of years began to release prematurely under the catalysis of destructive energy.
Dull tremors from deep within the planet began layering over the energy sphere's own pulsations.
Third Layer Ripple: Death Currents and Infrasound Elegy (Radius: Beyond 50 kilometers, continuing to spread)
Although the destructive power had relatively weakened, the transmission of destruction had not stopped. The immensely powerful shockwave transformed into devastating pressure waves traveling through the water.
Using water as its medium, it traveled far faster than the speed of sound through air, forming expanding rings of destructive "water hammers."
Distant underwater mountain ranges had their peaks shaken down, while vast Deep-Sea Plains were plowed into deep trenches. Fragile Deep-Sea Ecosystems—Coral Forests and Sponge Gardens—were reduced to powder within seconds.
Even deadlier was the Infrasound. The Energy Core's ultra-low-frequency pulses, born of matter being forcibly driven into resonance, combined with the vibrations produced as the crust was torn apart, generating a kind of Infrasound capable of traveling thousands of kilometers or even circling the globe.
It lay below the range of human hearing, yet could resonate with the internal organs of living creatures, especially large marine animals.
Hundreds of kilometers away, deep-diving pods of Sperm Whales suddenly went mad, rolling and crashing about in agony as their internal organs ruptured beneath the silent vibrations. Migrating whales lost their bearings and stranded themselves on unfamiliar shores.
This Infrasound Elegy was the first, and most hidden, Death Signal carried by the Abyssal Catastrophe into the wider ocean.