Tafsir of Al-Inshiqaq 84:4

وَأَلْقَتْ مَا فِيهَا وَتَخَلَّتْ (and it will throw up whatever it contains, and will become empty...84:4) The earth will, with one convulsion, throw up whatever it contains in its belly, whether natural treasures or buried treasures, or mines, or dead human bodies and their remains and particles.