דיגהה ניקאיה 1:564
SUJATOPuna caparaṁ, ānanda, yadā tathāgato anupādisesāya nibbānadhātuyā parinibbāyati, tadāyaṁ pathavī kampati saṅkampati sampakampati sampavedhati.
Furthermore, when the Realized One becomes fully extinguished in the element of extinguishment with no residue, the earth shakes and rocks and trembles.