디가 니카야 1:1349
SUJATOParinibbute bhagavati saha parinibbānā mahābhūmicālo ahosi bhiṁsanako salomahaṁso. Devadundubhiyo ca phaliṁsu.
When the Buddha was fully quenched, along with the full extinguishment there was a great earthquake, awe-inspiring and hair-raising, and thunder cracked the sky.