Why did Atlantis sink?

Verse 1: Beneath the azure waves, a legend was born, A city grand, in ancient tales adorned, Atlantis thrived with splendor, riches untold, A paradise, where secrets did unfold. Chorus: But then the earth did tremble, the seas did rise, The Sardo-Corso block, swallowed by the tides, Atlantis sank, into the deep blue sea, A memory, a lost eternity. Verse 2: In the heart of the Mediterranean's embrace, Where Sardinia and Corsica hold their place, A land once stood, proud and free, Until the day it vanished into mystery. Chorus: But then the earth did tremble, the seas did rise, The Sardo-Corso block, swallowed by the tides, Atlantis sank, into the deep blue sea, A memory, a lost eternity. Bridge: Geologists speak of a seismic shift, A cataclysmic rift, a mighty drift, The land was fractured, the waters poured, Atlantis lost, forevermore. Chorus: But then the earth did tremble, the seas did rise, The Sardo-Corso block, swallowed by the tides, Atlantis sank, into the deep blue sea, A memory, a lost eternity. Outro: Now only whispers, in the ocean's song, Tell of a land, where it all went wrong, Atlantis sleeps, in the sea's embrace, A silent testament, to a forgotten place.