﴿ بِسْمِ ٱللَّهِ ٱلرَّحْمَٰنِ ٱلرَّحِيمِ إِذَا زُلْزِلَتِ ٱلْأَرْضُ زِلْزَالَهَا ﴾

“WHEN THE EARTH quakes with her [last] mighty quaking,”

When earth is shaken when it is rocked for the rising of the Hour with its final quake with its most violent rocking one that befits its magnitude